| author name | recommending | commenting | favorite | papers | recom. | cited | |
|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 70 | 0 | 48 | [Update] |
Latest Paper:
G Agakishiev,
M M Aggarwal,
Z Ahammed,
A V Alakhverdyants,
I Alekseev,
J Alford,
B D Anderson,
C D Anson,
D Arkhipkin,
G S Averichev,
J Balewski,
L S Barnby,
D R Beavis,
R Bellwied,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
L C Bland,
I G Bordyuzhin,
W Borowski,
J Bouchet,
E Braidot,
A V Brandin,
S G Brovko,
E Bruna,
S Bueltmann,
I Bunzarov,
T P Burton,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
D Cebra,
R Cendejas,
M C Cervantes,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
L Chen,
J Cheng,
M Cherney,
A Chikanian,
W Christie,
P Chung,
M J M Codrington,
R Corliss,
J G Cramer,
H J Crawford,
X Cui,
A Davila Leyva,
L C De Silva,
R R Debbe,
T G Dedovich,
J Deng,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
X Dong,
J L Drachenberg,
J E Draper,
C M Du,
J C Dunlop,
L G Efimov,
M Elnimr,
J Engelage,
G Eppley,
M Estienne,
L Eun,
O Evdokimov,
P Fachini,
R Fatemi,
J Fedorisin,
R G Fersch,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
D R Gangadharan,
F Geurts,
P Ghosh,
Y N Gorbunov,
A Gordon,
O G Grebenyuk,
D Grosnick,
A Gupta,
S Gupta,
W Guryn,
B Haag,
O Hajkova,
A Hamed,
L-X Han,
J W Harris,
J P Hays-Wehle,
S Heppelmann,
A Hirsch,
G W Hoffmann,
D J Hofman,
B Huang,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
W W Jacobs,
C Jena,
J Joseph,
E G Judd,
S Kabana,
K Kang,
J Kapitan,
K Kauder,
H W Ke,
D Keane,
A Kechechyan,
D Kettler,
D P Kikola,
J Kiryluk,
A Kisiel,
V Kizka,
S R Klein,
D D Koetke,
T Kollegger,
J Konzer,
I Koralt,
L Koroleva,
W Korsch,
L Kotchenda,
P Kravtsov,
K Krueger,
L Kumar,
M A C Lamont,
J M Landgraf,
S Lapointe,
J Lauret,
A Lebedev,
R Lednicky,
J H Lee,
W Leight,
M J Levine,
C Li,
L Li,
W Li,
X Li,
Y Li,
Z M Li,
L M Lima,
M A Lisa,
F Liu,
T Ljubicic,
W J Llope,
R S Longacre,
Y Lu,
E V Lukashov,
X Luo,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
S Margetis,
C Markert,
H Masui,
H S Matis,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
M K Mitrovski,
Y Mohammed,
B Mohanty,
M M Mondal,
B Morozov,
D A Morozov,
M G Munhoz,
M K Mustafa,
M Naglis,
B K Nandi,
Md Nasim,
T K Nayak,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
K Oh,
A Ohlson,
V Okorokov,
E W Oldag,
R A N Oliveira,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
H Pei,
T Peitzmann,
C Perkins,
W Peryt,
P Pile,
M Planinic,
J Pluta,
D Plyku,
N Poljak,
J Porter,
A M Poskanzer,
C B Powell,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
H Qiu,
R Raniwala,
S Raniwala,
R L Ray,
R Redwine,
R Reed,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
L Ruan,
J Rusnak,
N R Sahoo,
I Sakrejda,
S Salur,
J Sandweiss,
E Sangaline,
A Sarkar,
J Schambach,
R P Scharenberg,
A M Schmah,
N Schmitz,
T R Schuster,
J Seele,
J Seger,
I Selyuzhenkov,
P Seyboth,
N Shah,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
Q Y Shou,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
D Solanki,
P Sorensen,
U G Desouza,
H M Spinka,
B Srivastava,
T D S Stanislaus,
S G Steadman,
J R Stevens,
R Stock,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
D N Svirida,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
D Tlusty,
M Tokarev,
T A Trainor,
S Trentalange,
R E Tribble,
P Tribedy,
B A Trzeciak,
O D Tsai,
T Ullrich,
D G Underwood,
G Van Buren,
G van Nieuwenhuizen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
A N Vasiliev,
F Videbæk,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
H Wang,
J S Wang,
Q Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
W Witzke,
Y F Wu,
Z Xiao,
W Xie,
H Xu,
N Xu,
Q H Xu,
W Xu,
Y Xu,
Z Xu,
L Xue,
Y Yang,
P Yepes,
K Yip,
I-K Yoo,
M Zawisza,
H Zbroszczyk,
W Zhan,
J B Zhang,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
F Zhao,
J Zhao,
C Zhong,
X Zhu,
Y H Zhu,
Y Zoulkarneeva
Joint Institute for Nuclear Research, Dubna, 141 980, Russia.
We report transverse momentum (p_{T}≤15 GeV/c) spectra of π^{±}, K^{±}, p, p[over ¯], K_{S}^{0}, and ρ^{0} at midrapidity in p+p and Au+Au collisions at sqrt[s_{NN}]=200 GeV. Perturbative QCD calculations are consistent with π^{±} spectra in p+p collisions but do not reproduce K and p(p[over ¯]) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p_{T} provide experimental evidence for varying quark and gluon jet contributions to high-p_{T} hadron yields. The relative hadron abundances in Au+Au at p_{T}≳8 GeV/c are measured to be similar to the p+p results, despite the expected Casimir effect for parton energy loss.
G Agakishiev,
M M Aggarwal,
Z Ahammed,
A V Alakhverdyants,
I Alekseev,
J Alford,
B D Anderson,
C D Anson,
D Arkhipkin,
G S Averichev,
J Balewski,
L S Barnby,
D R Beavis,
N K Behera,
R Bellwied,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
L C Bland,
I G Bordyuzhin,
W Borowski,
J Bouchet,
E Braidot,
A V Brandin,
A Bridgeman,
S G Brovko,
E Bruna,
S Bueltmann,
I Bunzarov,
T P Burton,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
D Cebra,
R Cendejas,
M C Cervantes,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
L Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
P Chung,
M J M Codrington,
R Corliss,
J G Cramer,
H J Crawford,
X Cui,
A Davila Leyva,
L C De Silva,
R R Debbe,
T G Dedovich,
J Deng,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
C M Du,
J C Dunlop,
L G Efimov,
M Elnimr,
J Engelage,
G Eppley,
M Estienne,
L Eun,
O Evdokimov,
R Fatemi,
J Fedorisin,
R G Fersch,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
D R Gangadharan,
F Geurts,
P Ghosh,
Y N Gorbunov,
A Gordon,
O G Grebenyuk,
D Grosnick,
A Gupta,
S Gupta,
W Guryn,
B Haag,
O Hajkova,
A Hamed,
L-X Han,
J W Harris,
J P Hays-Wehle,
M Heinz,
S Heppelmann,
A Hirsch,
E Hjort,
G W Hoffmann,
D J Hofman,
B Huang,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
P Jacobs,
W W Jacobs,
C Jena,
F Jin,
P G Jones,
J Joseph,
E G Judd,
S Kabana,
K Kang,
J Kapitan,
K Kauder,
H W Ke,
D Keane,
A Kechechyan,
D Kettler,
D P Kikola,
J Kiryluk,
A Kisiel,
V Kizka,
S R Klein,
A G Knospe,
D D Koetke,
T Kollegger,
J Konzer,
I Koralt,
L Koroleva,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
K Krueger,
M Krus,
L Kumar,
M A C Lamont,
J M Landgraf,
S Lapointe,
J Lauret,
A Lebedev,
R Lednicky,
J H Lee,
W Leight,
M J Levine,
C Li,
L Li,
N Li,
W Li,
X Li,
Y Li,
Z M Li,
L M Lima,
M A Lisa,
F Liu,
H Liu,
J Liu,
T Ljubicic,
W J Llope,
R S Longacre,
Y Lu,
E V Lukashov,
X Luo,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
R Manweiler,
S Margetis,
C Markert,
H Masui,
H S Matis,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
M K Mitrovski,
Y Mohammed,
B Mohanty,
M M Mondal,
B Morozov,
D A Morozov,
M G Munhoz,
M K Mustafa,
M Naglis,
B K Nandi,
T K Nayak,
J M Nelson,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
K Oh,
A Ohlson,
V Okorokov,
E W Oldag,
R A N Oliveira,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
H Pei,
T Peitzmann,
C Perkins,
W Peryt,
P Pile,
M Planinic,
M A Ploskon,
J Pluta,
D Plyku,
N Poljak,
J Porter,
A M Poskanzer,
B V K S Potukuchi,
C B Powell,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
H Qiu,
R Raniwala,
S Raniwala,
R L Ray,
R Redwine,
R Reed,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
L Ruan,
J Rusnak,
N R Sahoo,
I Sakrejda,
S Salur,
J Sandweiss,
E Sangaline,
A Sarkar,
J Schambach,
R P Scharenberg,
J Schaub,
A M Schmah,
N Schmitz,
T R Schuster,
J Seele,
J Seger,
I Selyuzhenkov,
P Seyboth,
N Shah,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
Q Y Shou,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
D Solanki,
P Sorensen,
U G Desouza,
H M Spinka,
B Srivastava,
T D S Stanislaus,
S G Steadman,
J R Stevens,
R Stock,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
D N Svirida,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
D Tlusty,
M Tokarev,
T A Trainor,
S Trentalange,
R E Tribble,
P Tribedy,
B A Trzeciak,
O D Tsai,
T Ullrich,
D G Underwood,
G Van Buren,
G van Nieuwenhuizen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
A N Vasiliev,
F Videbæk,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
H Wang,
J S Wang,
Q Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
W Witzke,
Y F Wu,
Z Xiao,
W Xie,
H Xu,
N Xu,
Q H Xu,
W Xu,
Y Xu,
Z Xu,
L Xue,
Y Yang,
P Yepes,
K Yip,
I-K Yoo,
M Zawisza,
H Zbroszczyk,
W Zhan,
J B Zhang,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
F Zhao,
J Zhao,
C Zhong,
X Zhu,
Y H Zhu,
Y Zoulkarneeva
Joint Institute for Nuclear Research, Dubna, 141 980, Russia.
We report new STAR measurements of midrapidity yields for the Λ, Λ[over ¯], K_{S}^{0}, Ξ^{-}, Ξ[over ¯]^{+}, Ω^{-}, Ω[over ¯]^{+} particles in Cu+Cu collisions at sqrt[s_{NN}]=200 GeV, and midrapidity yields for the Λ, Λ[over ¯], K_{S}^{0} particles in Au+Au at sqrt[s_{NN}]=200 GeV. We show that, at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parametrization based on the fraction of participants that undergo multiple collisions.
M M Aggarwal,
Z Ahammed,
A V Alakhverdyants,
I Alekseev,
J Alford,
B D Anderson,
C D Anson,
D Arkhipkin,
G S Averichev,
J Balewski,
D R Beavis,
R Bellwied,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
B Biritz,
L C Bland,
W Borowski,
J Bouchet,
E Braidot,
A V Brandin,
A Bridgeman,
S G Brovko,
E Bruna,
S Bueltmann,
I Bunzarov,
T P Burton,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
D Cebra,
R Cendejas,
M C Cervantes,
Z Chajecki,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
P Chung,
M J M Codrington,
R Corliss,
J G Cramer,
H J Crawford,
S Dash,
A Davila Leyva,
L C De Silva,
R R Debbe,
T G Dedovich,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
J C Dunlop,
M R Dutta Mazumdar,
L G Efimov,
M Elnimr,
J Engelage,
G Eppley,
B Erazmus,
M Estienne,
L Eun,
O Evdokimov,
R Fatemi,
J Fedorisin,
R G Fersch,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
D R Gangadharan,
M S Ganti,
A Geromitsos,
F Geurts,
P Ghosh,
Y N Gorbunov,
A Gordon,
O Grebenyuk,
D Grosnick,
S M Guertin,
A Gupta,
W Guryn,
B Haag,
A Hamed,
L-X Han,
J W Harris,
J P Hays-Wehle,
M Heinz,
S Heppelmann,
A Hirsch,
E Hjort,
G W Hoffmann,
D J Hofman,
B Huang,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
P Jacobs,
W W Jacobs,
C Jena,
F Jin,
J Joseph,
E G Judd,
S Kabana,
K Kang,
J Kapitan,
K Kauder,
D Keane,
A Kechechyan,
D Kettler,
D P Kikola,
J Kiryluk,
A Kisiel,
V Kizka,
S R Klein,
A G Knospe,
A Kocoloski,
D D Koetke,
T Kollegger,
J Konzer,
I Koralt,
L Koroleva,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
K Krueger,
M Krus,
L Kumar,
P Kurnadi,
M A C Lamont,
J M Landgraf,
S LaPointe,
J Lauret,
A Lebedev,
R Lednicky,
C-H Lee,
J H Lee,
W Leight,
M J LeVine,
C Li,
L Li,
N Li,
W Li,
X Li,
Y Li,
Z M Li,
M A Lisa,
F Liu,
H Liu,
J Liu,
T Ljubicic,
W J Llope,
R S Longacre,
W A Love,
Y Lu,
E V Lukashov,
X Luo,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
L K Mangotra,
R Manweiler,
S Margetis,
C Markert,
H Masui,
H S Matis,
Yu A Matulenko,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
A Mischke,
M K Mitrovski,
B Mohanty,
M M Mondal,
B Morozov,
D A Morozov,
M G Munhoz,
M Naglis,
B K Nandi,
T K Nayak,
P K Netrakanti,
M J Ng,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
A Ohlson,
V Okorokov,
E W Oldag,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
T Peitzmann,
C Perkins,
W Peryt,
S C Phatak,
P Pile,
M Planinic,
M A Ploskon,
J Pluta,
D Plyku,
N Poljak,
A M Poskanzer,
B V K S Potukuchi,
C B Powell,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
H Qiu,
R Raniwala,
S Raniwala,
R L Ray,
R Redwine,
R Reed,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
A Rose,
L Ruan,
S Sakai,
I Sakrejda,
T Sakuma,
S Salur,
J Sandweiss,
E Sangaline,
J Schambach,
R P Scharenberg,
A M Schmah,
N Schmitz,
T R Schuster,
J Seele,
J Seger,
I Selyuzhenkov,
P Seyboth,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
P Sorensen,
H M Spinka,
B Srivastava,
T D S Stanislaus,
D Staszak,
J R Stevens,
R Stock,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
D N Svirida,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
S Timoshenko,
D Tlusty,
M Tokarev,
T A Trainor,
V N Tram,
S Trentalange,
R E Tribble,
O D Tsai,
T Ullrich,
D G Underwood,
G Van Buren,
M van Leeuwen,
G van Nieuwenhuizen,
J A Vanfossen,
R Varma Jr,
G M S Vasconcelos,
A N Vasiliev,
F Videbæk,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
H Wang,
J S Wang,
Q Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
Y F Wu,
W Xie,
H Xu,
N Xu,
Q H Xu,
W Xu,
Y Xu,
Z Xu,
L Xue,
Y Yang,
P Yepes,
K Yip,
I-K Yoo,
Q Yue,
M Zawisza,
H Zbroszczyk,
W Zhan,
J B Zhang,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
J Zhao,
C Zhong,
W Zhou,
X Zhu,
Y H Zhu,
R Zoulkarneev,
Y Zoulkarneeva
Panjab University, Chandigarh 160014, India.
We report the first measurement of the parity-violating single-spin asymmetries for midrapidity decay positrons and electrons from W+ and W- boson production in longitudinally polarized proton-proton collisions at sqrt[s]= 500 GeV by the STAR experiment at RHIC. The measured asymmetries, A(L)(W+)=-0.27 ± 0.10(stat.) ± 0.02(syst.) ± 0.03(norm.) and A(L)(W-)= 0.14 ± 0.19(stat.) ± 0.02(syst.) ± 0.01(norm.), are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized deep-inelastic scattering measurements.
A Adare,
S Afanasiev,
C Aidala,
N N Ajitanand,
Y Akiba,
H Al-Bataineh,
J Alexander,
A Al-Jamel,
K Aoki,
L Aphecetche,
R Armendariz,
S H Aronson,
J Asai,
E T Atomssa,
R Averbeck,
T C Awes,
B Azmoun,
V Babintsev,
G Baksay,
L Baksay,
A Baldisseri,
K N Barish,
P D Barnes,
B Bassalleck,
S Bathe,
S Batsouli,
V Baublis,
F Bauer,
A Bazilevsky,
S Belikov,
R Bennett,
Y Berdnikov,
A A Bickley,
M T Bjorndal,
J G Boissevain,
H Borel,
K Boyle,
M L Brooks,
D S Brown,
D Bucher,
H Buesching,
V Bumazhnov,
G Bunce,
J M Burward-Hoy,
S Butsyk,
S Campbell,
J-S Chai,
B S Chang,
J-L Charvet,
S Chernichenko,
J Chiba,
C Y Chi,
M Chiu,
I J Choi,
T Chujo,
P Chung,
A Churyn,
V Cianciolo,
C R Cleven,
Y Cobigo,
B A Cole,
M P Comets,
P Constantin,
M Csanád,
T Csörgo,
T Dahms,
K Das,
G David,
M B Deaton,
K Dehmelt,
H Delagrange,
A Denisov,
D d'Enterria,
A Deshpande,
E J Desmond,
O Dietzsch,
A Dion,
M Donadelli,
J L Drachenberg,
O Drapier,
A Drees,
A K Dubey,
A Durum,
V Dzhordzhadze,
Y V Efremenko,
J Egdemir,
F Ellinghaus,
W S Emam,
A Enokizono,
H En'yo,
B Espagnon,
S Esumi,
K O Eyser,
D E Fields,
M Finger,
M Finger Jr,
F Fleuret,
S L Fokin,
B Forestier,
Z Fraenkel,
J E Frantz,
A Franz,
A D Frawley,
K Fujiwara,
Y Fukao,
S-Y Fung,
T Fusayasu,
S Gadrat,
I Garishvili,
F Gastineau,
M Germain,
A Glenn,
H Gong,
M Gonin,
J Gosset,
Y Goto,
R Granier de Cassagnac,
N Grau,
S V Greene,
M Grosse Perdekamp,
T Gunji,
H-A Gustafsson,
T Hachiya,
A Hadj Henni,
C Haegemann,
J S Haggerty,
M N Hagiwara,
H Hamagaki,
R Han,
H Harada,
E P Hartouni,
K Haruna,
M Harvey,
E Haslum,
K Hasuko,
R Hayano,
M Heffner,
T K Hemmick,
T Hester,
J M Heuser,
X He,
H Hiejima,
J C Hill,
R Hobbs,
M Hohlmann,
M Holmes,
W Holzmann,
K Homma,
B Hong,
T Horaguchi,
D Hornback,
M G Hur,
T Ichihara,
K Imai,
M Inaba,
Y Inoue,
D Isenhower,
L Isenhower,
M Ishihara,
T Isobe,
M Issah,
A Isupov,
B V Jacak,
J Jia,
J Jin,
O Jinnouchi,
B M Johnson,
K S Joo,
D Jouan,
F Kajihara,
S Kametani,
N Kamihara,
J Kamin,
M Kaneta,
J H Kang,
H Kanou,
T Kawagishi,
D Kawall,
A V Kazantsev,
S Kelly,
A Khanzadeev,
J Kikuchi,
D H Kim,
D J Kim,
E Kim,
Y-S Kim,
E Kinney,
A Kiss,
E Kistenev,
A Kiyomichi,
J Klay,
C Klein-Boesing,
L Kochenda,
V Kochetkov,
B Komkov,
M Konno,
D Kotchetkov,
A Kozlov,
A Král,
A Kravitz,
P J Kroon,
J Kubart,
G J Kunde,
N Kurihara,
K Kurita,
M J Kweon,
Y Kwon,
G S Kyle,
R Lacey,
Y-S Lai,
J G Lajoie,
A Lebedev,
Y Le Bornec,
S Leckey,
D M Lee,
M K Lee,
T Lee,
M J Leitch,
M A L Leite,
B Lenzi,
H Lim,
T Liska,
A Litvinenko,
M X Liu,
X Li,
X H Li,
B Love,
D Lynch,
C F Maguire,
Y I Makdisi,
A Malakhov,
M D Malik,
V I Manko,
Y Mao,
L Masek,
H Masui,
F Matathias,
M C McCain,
M McCumber,
P L McGaughey,
Y Miake,
P Mikes,
K Miki,
T E Miller,
A Milov,
S Mioduszewski,
G C Mishra,
M Mishra,
J T Mitchell,
M Mitrovski,
A Morreale,
D P Morrison,
J M Moss,
T V Moukhanova,
D Mukhopadhyay,
J Murata,
S Nagamiya,
Y Nagata,
J L Nagle,
M Naglis,
I Nakagawa,
Y Nakamiya,
T Nakamura,
K Nakano,
J Newby,
M Nguyen,
B E Norman,
A S Nyanin,
J Nystrand,
E O'Brien,
S X Oda,
C A Ogilvie,
H Ohnishi,
I D Ojha,
H Okada,
K Okada,
M Oka,
O O Omiwade,
A Oskarsson,
I Otterlund,
M Ouchida,
K Ozawa,
R Pak,
D Pal,
A P T Palounek,
V Pantuev,
V Papavassiliou,
J Park,
W J Park,
S F Pate,
H Pei,
J-C Peng,
H Pereira,
V Peresedov,
D Yu Peressounko,
C Pinkenburg,
R P Pisani,
M L Purschke,
A K Purwar,
H Qu,
J Rak,
A Rakotozafindrabe,
I Ravinovich,
K F Read,
S Rembeczki,
M Reuter,
K Reygers,
V Riabov,
Y Riabov,
G Roche,
A Romana,
M Rosati,
S S E Rosendahl,
P Rosnet,
P Rukoyatkin,
V L Rykov,
S S Ryu,
B Sahlmueller,
N Saito,
T Sakaguchi,
S Sakai,
H Sakata,
V Samsonov,
H D Sato,
S Sato,
S Sawada,
J Seele,
R Seidl,
V Semenov,
R Seto,
D Sharma,
T K Shea,
I Shein,
A Shevel,
T-A Shibata,
K Shigaki,
M Shimomura,
T Shohjoh,
K Shoji,
A Sickles,
C L Silva,
D Silvermyr,
C Silvestre,
K S Sim,
C P Singh,
V Singh,
S Skutnik,
M Slunecka,
W C Smith,
A Soldatov,
R A Soltz,
W E Sondheim,
S P Sorensen,
I V Sourikova,
F Staley,
P W Stankus,
E Stenlund,
M Stepanov,
A Ster,
S P Stoll,
T Sugitate,
C Suire,
J P Sullivan,
J Sziklai,
T Tabaru,
S Takagi,
E M Takagui,
A Taketani,
K H Tanaka,
Y Tanaka,
K Tanida,
M J Tannenbaum,
A Taranenko,
P Tarján,
T L Thomas,
M Togawa,
A Toia,
J Tojo,
L Tomásek,
H Torii,
R S Towell,
V-N Tram,
I Tserruya,
Y Tsuchimoto,
S K Tuli,
H Tydesjö,
N Tyurin,
C Vale,
H Valle,
H W van Hecke,
J Velkovska,
R Vertesi,
A A Vinogradov,
M Virius,
V Vrba,
E Vznuzdaev,
M Wagner,
D Walker,
X R Wang,
Y Watanabe,
J Wessels,
S N White,
N Willis,
D Winter,
C L Woody,
M Wysocki,
W Xie,
Y L Yamaguchi,
A Yanovich,
Z Yasin,
J Ying,
S Yokkaichi,
G R Young,
I Younus,
I E Yushmanov,
W A Zajc,
O Zaudtke,
C Zhang,
S Zhou,
J Zimányi,
L Zolin
University of Colorado, Boulder, Colorado 80309, USA.
The production of e;{+}e;{-} pairs for m_{e;{+}e;{-}}<0.3 GeV/c;{2} and 1<p_{T}<5 GeV/c is measured in p+p and Au+Au collisions at sqrt[s_{NN}]=200 GeV. An enhanced yield above hadronic sources is observed. Treating the excess as photon internal conversions, the invariant yield of direct photons is deduced. In central Au+Au collisions, the excess of the direct photon yield over p+p is exponential in transverse momentum, with an inverse slope T=221+/-19;{stat}+/-19;{syst} MeV. Hydrodynamical models with initial temperatures ranging from T_{init} approximately 300-600 MeV at times of approximately 0.6-0.15 fm/c after the collision are in qualitative agreement with the data. Lattice QCD predicts a phase transition to quark gluon plasma at approximately 170 MeV.
B I Abelev,
M M Aggarwal,
Z Ahammed,
A V Alakhverdyants,
B D Anderson,
D Arkhipkin,
G S Averichev,
J Balewski,
O Barannikova,
L S Barnby,
S Baumgart,
D R Beavis,
R Bellwied,
F Benedosso,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
B Biritz,
L C Bland,
I Bnzarov,
B E Bonner,
J Bouchet,
E Braidot,
A V Brandin,
A Bridgeman,
E Bruna,
S Bueltmann,
T P Burton,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
O Catu,
D Cebra,
R Cendejas,
M C Cervantes,
Z Chajecki,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
P Chung,
R F Clarke,
M J M Codrington,
R Corliss,
T M Cormier,
M R Cosentino,
J G Cramer,
H J Crawford,
D Das,
S Dash,
M Daugherity,
L C De Silva,
T G Dedovich,
M Dephillips,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
V Dzhordzhadze,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
J C Dunlop,
M R Dutta Mazumdar,
L G Efimov,
E Elhalhuli,
M Elnimr,
J Engelage,
G Eppley,
B Erazmus,
M Estienne,
L Eun,
P Fachini,
R Fatemi,
J Fedorisin,
A Feng,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
D R Gangadharan,
M S Ganti,
E J Garcia-Solis,
A Geromitsos,
F Geurts,
V Ghazikhanian,
P Ghosh,
Y N Gorbunov,
A Gordon,
O Grebenyuk,
D Grosnick,
B Grube,
S M Guertin,
K S F F Guimaraes,
A Gupta,
N Gupta,
W Guryn,
B Haag,
T J Hallman,
A Hamed,
J W Harris,
M Heinz,
S Heppelmann,
A Hirsch,
E Hjort,
A M Hoffman,
G W Hoffmann,
D J Hofman,
R S Hollis,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
A Iordanova,
P Jacobs,
W W Jacobs,
P Jakl,
C Jena,
F Jin,
C L Jones,
P G Jones,
J Joseph,
E G Judd,
S Kabana,
K Kajimoto,
K Kang,
J Kapitan,
K Kauder,
D Keane,
A Kechechyan,
D Kettler,
V Yu Khodyrev,
D P Kikola,
J Kiryluk,
A Kisiel,
S R Klein,
A G Knospe,
A Kocoloski,
D D Koetke,
J Konzer,
M Kopytine,
I Koralt,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
V I Kravtsov,
K Krueger,
M Krus,
L Kumar,
P Kurnadi,
M A C Lamont,
J M Landgraf,
S Lapointe,
J Lauret,
A Lebedev,
R Lednicky,
C-H Lee,
J H Lee,
W Leight,
M J Levine,
C Li,
N Li,
Y Li,
G Lin,
S J Lindenbaum,
M A Lisa,
F Liu,
H Liu,
J Liu,
L Liu,
T Ljubicic,
W J Llope,
R S Longacre,
W A Love,
Y Lu,
T Ludlam,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
L K Mangotra,
R Manweiler,
S Margetis,
C Markert,
H Masui,
H S Matis,
Yu A Matulenko,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
A Mischke,
B Mohanty,
D A Morozov,
M G Munhoz,
B K Nandi,
C Nattrass,
T K Nayak,
J M Nelson,
P K Netrakanti,
M J Ng,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
H Okada,
V Okorokov,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
T Peitzmann,
V Perevoztchikov,
C Perkins,
W Peryt,
S C Phatak,
P Pile,
M Planinic,
M A Ploskon,
J Pluta,
D Plyku,
N Poljak,
A M Poskanzer,
B V K S Potukuchi,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
R Raniwala,
S Raniwala,
R L Ray,
R Redwine,
R Reed,
A Ridiger,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
A Rose,
C Roy,
L Ruan,
M J Russcher,
R Sahoo,
S Sakai,
I Sakrejda,
T Sakuma,
S Salur,
J Sandweiss,
J Schambach,
R P Scharenberg,
N Schmitz,
J Seele,
J Seger,
I Selyuzhenkov,
Y Semertzidis,
P Seyboth,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
X-H Shi,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
P Sorensen,
J Sowinski,
H M Spinka,
B Srivastava,
T D S Stanislaus,
D Staszak,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
S Timoshenko,
D Tlusty,
M Tokarev,
V N Tram,
S Trentalange,
R E Tribble,
O D Tsai,
J Ulery,
T Ullrich,
D G Underwood,
G Van Buren,
G van Nieuwenhuizen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
A N Vasiliev,
F Videbaek,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
H Wang,
J S Wang,
Q Wang,
X Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
Y Wu,
W Xie,
N Xu,
Q H Xu,
Y Xu,
Z Xu,
Y Yang,
P Yepes,
K Yip,
I-K Yoo,
Q Yue,
M Zawisza,
H Zbroszczyk,
W Zhan,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
Y Zhao,
C Zhong,
J Zhou,
X Zhu,
R Zoulkarneev,
Y Zoulkarneeva,
J X Zuo
University of Illinois at Chicago, Chicago, Illinois 60607, USA.
Parity-odd domains, corresponding to nontrivial topological solutions of the QCD vacuum, might be created during relativistic heavy-ion collisions. These domains are predicted to lead to charge separation of quarks along the system's orbital momentum axis. We investigate a three-particle azimuthal correlator which is a P even observable, but directly sensitive to the charge separation effect. We report measurements of charged hadrons near center-of-mass rapidity with this observable in Au+Au and Cu+Cu collisions at sqrt[s_{NN}]=200 GeV using the STAR detector. A signal consistent with several expectations from the theory is detected. We discuss possible contributions from other effects that are not related to parity violation.
Science. 2010 Mar 4;:
20203011
Cit:2
B I Abelev,
M M Aggarwal,
Z Ahammed,
A V Alakhverdyants,
I Alekseev,
B D Anderson,
D Arkhipkin,
G S Averichev,
J Balewski,
L S Barnby,
S Baumgart,
D R Beavis,
R Bellwied,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
B Biritz,
L C Bland,
B E Bonner,
J Bouchet,
E Braidot,
A V Brandin,
A Bridgeman,
E Bruna,
S Bueltmann,
I Bunzarov,
T P Burton,
X Z Cai,
H Caines,
M Calderon,
O Catu,
D Cebra,
R Cendejas,
M C Cervantes,
Z Chajecki,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
P Chung,
R F Clarke,
M J M Codrington,
R Corliss,
J G Cramer,
H J Crawford,
D Das,
S Dash,
A Davila Leyva,
L C De Silva,
R R Debbe,
T G Dedovich,
M Dephillips,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
J C Dunlop,
M R Dutta Mazumdar,
L G Efimov,
E Elhalhuli,
M Elnimr,
J Engelage,
G Eppley,
B Erazmus,
M Estienne,
L Eun,
O Evdokimov,
P Fachini,
R Fatemi,
J Fedorisin,
R G Fersch,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
D R Gangadharan,
M S Ganti,
E J Garcia-Solis,
A Geromitsos,
F Geurts,
V Ghazikhanian,
P Ghosh,
Y N Gorbunov,
A Gordon,
O Grebenyuk,
D Grosnick,
B Grube,
S M Guertin,
A Gupta,
N Gupta,
W Guryn,
B Haag,
A Hamed,
L-X Han,
J W Harris,
J P Hays-Wehle,
M Heinz,
S Heppelmann,
A Hirsch,
E Hjort,
A M Hoffman,
G W Hoffmann,
D J Hofman,
R S Hollis,
B Huang,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
A Iordanova,
P Jacobs,
W W Jacobs,
P Jakl,
C Jena,
F Jin,
C L Jones,
P G Jones,
J Joseph,
E G Judd,
S Kabana,
K Kajimoto,
K Kang,
J Kapitan,
K Kauder,
D Keane,
A Kechechyan,
D Kettler,
D P Kikola,
J Kiryluk,
A Kisiel,
S R Klein,
A G Knospe,
A Kocoloski,
D D Koetke,
T Kollegger,
J Konzer,
M Kopytine,
I Koralt,
L Koroleva,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
K Krueger,
M Krus,
L Kumar,
P Kurnadi,
M A C Lamont,
J M Landgraf,
S Lapointe,
J Lauret,
A Lebedev,
R Lednicky,
C-H Lee,
J H Lee,
W Leight,
M J Levine,
C Li,
L Li,
N Li,
W Li,
X Li,
Y Li,
Z Li,
G Lin,
S J Lindenbaum,
M A Lisa,
F Liu,
H Liu,
J Liu,
T Ljubicic,
W J Llope,
R S Longacre,
W A Love,
Y Lu,
T Ludlam,
X Luo,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mal,
L K Mangotra,
R Manweiler,
S Margetis,
C Markert,
H Masui,
H S Matis,
Yu A Matulenko,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
A Mischke,
M K Mitrovski,
B Mohanty,
M M Mondal,
B Morozov,
D A Morozov,
M G Munhoz,
B K Nandi,
C Nattrass,
T K Nayak,
J M Nelson,
P K Netrakanti,
M J Ng,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
H Okada,
V Okorokov,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
T Peitzmann,
V Perevoztchikov,
C Perkins,
W Peryt,
S C Phatak,
P Pile,
M Planinic,
M A Ploskon,
J Pluta,
D Plyku,
N Poljak,
A M Poskanzer,
B V K S Potukuchi,
C B Powell,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
R Raniwala,
S Raniwala,
R L Ray,
R Redwine,
R Reed,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
A Rose,
C Roy,
L Ruan,
R Sahoo,
S Sakai,
I Sakrejda,
T Sakuma,
S Salur,
J Sandweiss,
E Sangaline,
J Schambach,
R P Scharenberg,
N Schmitz,
T R Schuster,
J Seele,
J Seger,
I Selyuzhenkov,
P Seyboth,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
P Sorensen,
J Sowinski,
H M Spinka,
B Srivastava,
T D S Stanislaus,
D Staszak,
J R Stevens,
R Stock,
M Strikhanov,
B String,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
D N Svirida,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
S Timoshenko,
D Tlusty,
M Tokarev,
T A Trainor,
V N Tram,
S Trentalange,
R E Tribble,
O D Tsai,
J Ulery,
T Ullrich,
D G Underwood,
G Van Buren,
M van Leeuwen,
G van Nieuwenhuizen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
A N Vasiliev,
F Videbaek,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
H Wang,
J S Wang,
Q Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
E Wingfield,
S W Wissink,
R Witt,
Y Wu,
W Xie,
N Xu,
Q H Xu,
W Xu,
Y Xu,
Z Xu,
L Xue,
Y Yang,
P Yepes,
K Yip,
I-K Yoo,
Q Yue,
M Zawisza,
H Zbroszczyk,
W Zhan,
J Zhang,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
J Zhao,
C Zhong,
J Zhou,
W Zhou,
X Zhu,
Y H Zhu,
R Zoulkarneev,
Y Zoulkarneeva
Nuclear collisions recreate conditions in the universe microseconds after the Big Bang. Only a very small fraction of the emitted fragments are light nuclei, but these states are of fundamental interest. We report the observation of antihypertritons-comprised of an antiproton, antineutron, and antilambda hyperon-produced by colliding gold nuclei at high energy. Our analysis yields 70 +/- 17 antihypertritons ($${}_{\overline{\Lambda }};{3}\overline{\mathrm{H}}$$) and 157 +/- 30 hypertritons ($${}_{\Lambda };{3}\mathrm{H}$$). The measured yields of $${}_{\Lambda };{3}\mathrm{H}$$($${}_{\overline{\Lambda }};{3}\overline{\mathrm{H}}$$) and (3)He ((3)$$\overline{\mathrm{He}}$$) are similar, suggesting an equilibrium in coordinate and momentum space populations of up, down, and strange quarks and antiquarks, unlike the pattern observed at lower collision energies. The production and properties of antinuclei, and nuclei containing strange quarks, have implications spanning nuclear/particle physics, astrophysics, and cosmology.
B I Abelev,
M M Aggarwal,
Z Ahammed,
B D Anderson,
D Arkhipkin,
G S Averichev,
J Balewski,
O Barannikova,
L S Barnby,
J Baudot,
S Baumgart,
D R Beavis,
R Bellwied,
F Benedosso,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
B Biritz,
L C Bland,
M Bombara,
B E Bonner,
M Botje,
J Bouchet,
E Braidot,
A V Brandin,
E Bruna,
S Bueltmann,
T P Burton,
M Bystersky,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
O Catu,
D Cebra,
R Cendejas,
M C Cervantes,
Z Chajecki,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
R F Clarke,
M J M Codrington,
R Corliss,
T M Cormier,
M R Cosentino,
J G Cramer,
H J Crawford,
D Das,
S Dash,
M Daugherity,
L C De Silva,
T G Dedovich,
M Dephillips,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
F Du,
J C Dunlop,
M R Dutta Mazumdar,
W R Edwards,
L G Efimov,
E Elhalhuli,
M Elnimr,
V Emelianov,
J Engelage,
G Eppley,
B Erazmus,
M Estienne,
L Eun,
P Fachini,
R Fatemi,
J Fedorisin,
A Feng,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
L Gaillard,
D R Gangadharan,
M S Ganti,
E J Garcia-Solis,
A Geromitsos,
F Geurts,
V Ghazikhanian,
P Ghosh,
Y N Gorbunov,
A Gordon,
O Grebenyuk,
D Grosnick,
B Grube,
S M Guertin,
K S F F Guimaraes,
A Gupta,
N Gupta,
W Guryn,
B Haag,
T J Hallman,
A Hamed,
J W Harris,
W He,
M Heinz,
S Heppelmann,
B Hippolyte,
A Hirsch,
E Hjort,
A M Hoffman,
G W Hoffmann,
D J Hofman,
R S Hollis,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
A Iordanova,
P Jacobs,
W W Jacobs,
P Jakl,
C Jena,
F Jin,
C L Jones,
P G Jones,
J Joseph,
E G Judd,
S Kabana,
K Kajimoto,
K Kang,
J Kapitan,
D Keane,
A Kechechyan,
D Kettler,
V Yu Khodyrev,
D P Kikola,
J Kiryluk,
A Kisiel,
A G Knospe,
A Kocoloski,
D D Koetke,
M Kopytine,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
V I Kravtsov,
K Krueger,
M Krus,
C Kuhn,
L Kumar,
P Kurnadi,
M A C Lamont,
J M Landgraf,
S Lapointe,
J Lauret,
A Lebedev,
R Lednicky,
C-H Lee,
J H Lee,
W Leight,
M J Levine,
N Li,
C Li,
Y Li,
G Lin,
S J Lindenbaum,
M A Lisa,
F Liu,
J Liu,
L Liu,
T Ljubicic,
W J Llope,
R S Longacre,
W A Love,
Y Lu,
T Ludlam,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
L K Mangotra,
R Manweiler,
S Margetis,
C Markert,
H S Matis,
Yu A Matulenko,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
A Mischke,
J Mitchell,
B Mohanty,
D A Morozov,
M G Munhoz,
B K Nandi,
C Nattrass,
T K Nayak,
J M Nelson,
P K Netrakanti,
M J Ng,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
H Okada,
V Okorokov,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
T Peitzmann,
V Perevoztchikov,
C Perkins,
W Peryt,
S C Phatak,
M Planinic,
J Pluta,
N Poljak,
A M Poskanzer,
B V K S Potukuchi,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
R Raniwala,
S Raniwala,
R Redwine,
R Reed,
A Ridiger,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
A Rose,
C Roy,
L Ruan,
M J Russcher,
R Sahoo,
I Sakrejda,
T Sakuma,
S Salur,
J Sandweiss,
M Sarsour,
J Schambach,
R P Scharenberg,
N Schmitz,
J Seger,
I Selyuzhenkov,
P Seyboth,
A Shabetai,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
X-H Shi,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
R Snellings,
P Sorensen,
J Sowinski,
H M Spinka,
B Srivastava,
A Stadnik,
T D S Stanislaus,
D Staszak,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
S Timoshenko,
D Tlusty,
M Tokarev,
V N Tram,
A L Trattner,
S Trentalange,
R E Tribble,
O D Tsai,
J Ulery,
T Ullrich,
D G Underwood,
G Van Buren,
M van Leeuwen,
A M Vander Molen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
I M Vasilevski,
A N Vasiliev,
F Videbaek,
S E Vigdor,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
J S Wang,
Q Wang,
X Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
Y Wu,
W Xie,
N Xu,
Q H Xu,
Y Xu,
Z Xu,
Y Yang,
P Yepes,
I-K Yoo,
Q Yue,
M Zawisza,
H Zbroszczyk,
W Zhan,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
Y Zhao,
C Zhong,
J Zhou,
R Zoulkarneev,
Y Zoulkarneeva,
J X Zuo
University of Illinois at Chicago, Chicago, Illinois 60607, USA.
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and p+p collisions at sqrt[s_{NN}]=200 GeV. Strong short- and long-range correlations (LRC) are seen in central Au+Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short-range correlations are observed in peripheral Au+Au collisions. Both the dual parton model (DPM) and the color glass condensate (CGC) predict the existence of the long-range correlations. In the DPM, the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC, longitudinal color flux tubes generate the LRC. The data are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.
S Afanasiev,
C Aidala,
N N Ajitanand,
Y Akiba,
J Alexander,
A Al-Jamel,
K Aoki,
L Aphecetche,
R Armendariz,
S H Aronson,
R Averbeck,
T C Awes,
B Azmoun,
V Babintsev,
A Baldisseri,
K N Barish,
P D Barnes,
B Bassalleck,
S Bathe,
S Batsouli,
V Baublis,
F Bauer,
A Bazilevsky,
S Belikov,
R Bennett,
Y Berdnikov,
M T Bjorndal,
J G Boissevain,
H Borel,
K Boyle,
M L Brooks,
D S Brown,
D Bucher,
H Buesching,
V Bumazhnov,
G Bunce,
J M Burward-Hoy,
S Butsyk,
S Campbell,
J-S Chai,
S Chernichenko,
J Chiba,
C Y Chi,
M Chiu,
I J Choi,
T Chujo,
V Cianciolo,
C R Cleven,
Y Cobigo,
B A Cole,
M P Comets,
P Constantin,
M Csanád,
T Csörgo,
T Dahms,
K Das,
G David,
H Delagrange,
A Denisov,
D d'Enterria,
A Deshpande,
E J Desmond,
O Dietzsch,
A Dion,
J L Drachenberg,
O Drapier,
A Drees,
A K Dubey,
A Durum,
V Dzhordzhadze,
Y V Efremenko,
J Egdemir,
A Enokizono,
H En'yo,
B Espagnon,
S Esumi,
D E Fields,
F Fleuret,
S L Fokin,
B Forestier,
Z Fraenkel,
J E Frantz,
A Franz,
A D Frawley,
Y Fukao,
S-Y Fung,
S Gadrat,
F Gastineau,
M Germain,
A Glenn,
M Gonin,
J Gosset,
Y Goto,
R Granier de Cassagnac,
N Grau,
S V Greene,
M Grosse Perdekamp,
T Gunji,
H-A Gustafsson,
T Hachiya,
A Hadj Henni,
J S Haggerty,
M N Hagiwara,
H Hamagaki,
H Harada,
E P Hartouni,
K Haruna,
M Harvey,
E Haslum,
K Hasuko,
R Hayano,
M Heffner,
T K Hemmick,
J M Heuser,
X He,
H Hiejima,
J C Hill,
R Hobbs,
M Holmes,
W Holzmann,
K Homma,
B Hong,
T Horaguchi,
M G Hur,
T Ichihara,
K Imai,
M Inaba,
D Isenhower,
L Isenhower,
M Ishihara,
T Isobe,
M Issah,
A Isupov,
B V Jacak,
J Jia,
J Jin,
O Jinnouchi,
B M Johnson,
K S Joo,
D Jouan,
F Kajihara,
S Kametani,
N Kamihara,
M Kaneta,
J H Kang,
T Kawagishi,
A V Kazantsev,
S Kelly,
A Khanzadeev,
D J Kim,
E Kim,
Y-S Kim,
E Kinney,
A Kiss,
E Kistenev,
A Kiyomichi,
C Klein-Boesing,
L Kochenda,
V Kochetkov,
B Komkov,
M Konno,
D Kotchetkov,
A Kozlov,
P J Kroon,
G J Kunde,
N Kurihara,
K Kurita,
M J Kweon,
Y Kwon,
G S Kyle,
R Lacey,
J G Lajoie,
A Lebedev,
Y Le Bornec,
S Leckey,
D M Lee,
M K Lee,
M J Leitch,
M A L Leite,
H Lim,
A Litvinenko,
M X Liu,
X H Li,
C F Maguire,
Y I Makdisi,
A Malakhov,
M D Malik,
V I Manko,
H Masui,
F Matathias,
M C McCain,
P L McGaughey,
Y Miake,
T E Miller,
A Milov,
S Mioduszewski,
G C Mishra,
J T Mitchell,
D P Morrison,
J M Moss,
T V Moukhanova,
D Mukhopadhyay,
J Murata,
S Nagamiya,
Y Nagata,
J L Nagle,
M Naglis,
T Nakamura,
J Newby,
M Nguyen,
B E Norman,
R Nouicer,
A S Nyanin,
J Nystrand,
E O'Brien,
C A Ogilvie,
H Ohnishi,
I D Ojha,
H Okada,
K Okada,
O O Omiwade,
A Oskarsson,
I Otterlund,
K Ozawa,
D Pal,
A P T Palounek,
V Pantuev,
V Papavassiliou,
J Park,
W J Park,
S F Pate,
H Pei,
J-C Peng,
H Pereira,
V Peresedov,
D Yu Peressounko,
C Pinkenburg,
R P Pisani,
M L Purschke,
A K Purwar,
H Qu,
J Rak,
I Ravinovich,
K F Read,
M Reuter,
K Reygers,
V Riabov,
Y Riabov,
G Roche,
A Romana,
M Rosati,
S S E Rosendahl,
P Rosnet,
P Rukoyatkin,
V L Rykov,
S S Ryu,
B Sahlmueller,
N Saito,
T Sakaguchi,
S Sakai,
V Samsonov,
H D Sato,
S Sato,
S Sawada,
V Semenov,
R Seto,
D Sharma,
T K Shea,
I Shein,
T-A Shibata,
K Shigaki,
M Shimomura,
T Shohjoh,
K Shoji,
A Sickles,
C L Silva,
D Silvermyr,
K S Sim,
C P Singh,
V Singh,
S Skutnik,
W C Smith,
A Soldatov,
R A Soltz,
W E Sondheim,
S P Sorensen,
I V Sourikova,
F Staley,
P W Stankus,
E Stenlund,
M Stepanov,
A Ster,
S P Stoll,
T Sugitate,
C Suire,
J P Sullivan,
J Sziklai,
T Tabaru,
S Takagi,
E M Takagui,
A Taketani,
K H Tanaka,
Y Tanaka,
K Tanida,
M J Tannenbaum,
A Taranenko,
P Tarján,
T L Thomas,
M Togawa,
J Tojo,
H Torii,
R S Towell,
V-N Tram,
I Tserruya,
Y Tsuchimoto,
S K Tuli,
H Tydesjö,
N Tyurin,
C Vale,
H Valle,
H W van Hecke,
J Velkovska,
R Vértesi,
A A Vinogradov,
E Vznuzdaev,
M Wagner,
X R Wang,
Y Watanabe,
J Wessels,
S N White,
N Willis,
D Winter,
C L Woody,
M Wysocki,
W Xie,
A Yanovich,
S Yokkaichi,
G R Young,
I Younus,
I E Yushmanov,
W A Zajc,
O Zaudtke,
C Zhang,
J Zimányi,
L Zolin
Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia.
Bose-Einstein correlations of charged kaons are used to probe Au+Au collisions at sqrt[s_{NN}]=200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three-dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function of N_{part};{1/3} with a zero intercept. Imaging analysis shows a deviation from a Gaussian tail at r greater, similar10 fm, although the bulk emission at lower radius is well described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy-ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
B I Abelev,
M M Aggarwal,
Z Ahammed,
B D Anderson,
D Arkhipkin,
G S Averichev,
J Balewski,
O Barannikova,
L S Barnby,
J Baudot,
S Baumgart,
D R Beavis,
R Bellwied,
F Benedosso,
M J Betancourt,
R R Betts,
A Bhasin,
A K Bhati,
H Bichsel,
J Bielcik,
J Bielcikova,
B Biritz,
L C Bland,
M Bombara,
B E Bonner,
M Botje,
J Bouchet,
E Braidot,
A V Brandin,
E Bruna,
S Bueltmann,
T P Burton,
M Bystersky,
X Z Cai,
H Caines,
M Calderón de la Barca Sánchez,
O Catu,
D Cebra,
R Cendejas,
M C Cervantes,
Z Chajecki,
P Chaloupka,
S Chattopadhyay,
H F Chen,
J H Chen,
J Y Chen,
J Cheng,
M Cherney,
A Chikanian,
K E Choi,
W Christie,
R F Clarke,
M J M Codrington,
R Corliss,
T M Cormier,
M R Cosentino,
J G Cramer,
H J Crawford,
D Das,
S Das,
S Dash,
M Daugherity,
L C De Silva,
T G Dedovich,
M DePhillips,
A A Derevschikov,
R Derradi de Souza,
L Didenko,
P Djawotho,
S M Dogra,
X Dong,
J L Drachenberg,
J E Draper,
J C Dunlop,
M R Dutta Mazumdar,
W R Edwards,
L G Efimov,
E Elhalhuli,
M Elnimr,
V Emelianov,
J Engelage,
G Eppley,
B Erazmus,
M Estienne,
L Eun,
P Fachini,
R Fatemi,
J Fedorisin,
A Feng,
P Filip,
E Finch,
V Fine,
Y Fisyak,
C A Gagliardi,
L Gaillard,
D R Gangadharan,
M S Ganti,
E J Garcia-Solis,
A Geromitsos,
F Geurts,
V Ghazikhanian,
P Ghosh,
Y N Gorbunov,
A Gordon,
O Grebenyuk,
D Grosnick,
B Grube,
S M Guertin,
K S F F Guimaraes,
A Gupta,
N Gupta,
W Guryn,
B Haag,
T J Hallman,
A Hamed,
J W Harris,
W He,
M Heinz,
S Heppelmann,
B Hippolyte,
A Hirsch,
E Hjort,
A M Hoffman,
G W Hoffmann,
D J Hofman,
R S Hollis,
H Z Huang,
T J Humanic,
L Huo,
G Igo,
A Iordanova,
P Jacobs,
W W Jacobs,
P Jakl,
C Jena,
F Jin,
C L Jones,
P G Jones,
J Joseph,
E G Judd,
S Kabana,
K Kajimoto,
K Kang,
J Kapitan,
D Keane,
A Kechechyan,
D Kettler,
V Yu Khodyrev,
D P Kikola,
J Kiryluk,
A Kisiel,
S R Klein,
A G Knospe,
A Kocoloski,
D D Koetke,
M Kopytine,
W Korsch,
L Kotchenda,
V Kouchpil,
P Kravtsov,
V I Kravtsov,
K Krueger,
M Krus,
C Kuhn,
L Kumar,
P Kurnadi,
M A C Lamont,
J M Landgraf,
S LaPointe,
J Lauret,
A Lebedev,
R Lednicky,
C-H Lee,
J H Lee,
W Leight,
M J LeVine,
C Li,
N Li,
Y Li,
G Lin,
S J Lindenbaum,
M A Lisa,
F Liu,
J Liu,
L Liu,
T Ljubicic,
W J Llope,
R S Longacre,
W A Love,
Y Lu,
T Ludlam,
G L Ma,
Y G Ma,
D P Mahapatra,
R Majka,
O I Mall,
L K Mangotra,
R Manweiler,
S Margetis,
C Markert,
H S Matis,
Yu A Matulenko,
D McDonald,
T S McShane,
A Meschanin,
R Milner,
N G Minaev,
S Mioduszewski,
A Mischke,
B Mohanty,
D A Morozov,
M G Munhoz,
B K Nandi,
C Nattrass,
T K Nayak,
J M Nelson,
P K Netrakanti,
M J Ng,
L V Nogach,
S B Nurushev,
G Odyniec,
A Ogawa,
H Okada,
V Okorokov,
D Olson,
M Pachr,
B S Page,
S K Pal,
Y Pandit,
Y Panebratsev,
T Pawlak,
T Peitzmann,
V Perevoztchikov,
C Perkins,
W Peryt,
S C Phatak,
P Pile,
M Planinic,
J Pluta,
D Plyku,
N Poljak,
A M Poskanzer,
B V K S Potukuchi,
D Prindle,
C Pruneau,
N K Pruthi,
P R Pujahari,
J Putschke,
R Raniwala,
S Raniwala,
R Redwine,
R Reed,
A Ridiger,
H G Ritter,
J B Roberts,
O V Rogachevskiy,
J L Romero,
A Rose,
C Roy,
L Ruan,
M J Russcher,
R Sahoo,
I Sakrejda,
T Sakuma,
S Salur,
J Sandweiss,
M Sarsour,
J Schambach,
R P Scharenberg,
N Schmitz,
J Seger,
I Selyuzhenkov,
P Seyboth,
A Shabetai,
E Shahaliev,
M Shao,
M Sharma,
S S Shi,
X-H Shi,
E P Sichtermann,
F Simon,
R N Singaraju,
M J Skoby,
N Smirnov,
R Snellings,
P Sorensen,
J Sowinski,
H M Spinka,
B Srivastava,
A Stadnik,
T D S Stanislaus,
D Staszak,
M Strikhanov,
B Stringfellow,
A A P Suaide,
M C Suarez,
N L Subba,
M Sumbera,
X M Sun,
Y Sun,
Z Sun,
B Surrow,
T J M Symons,
A Szanto de Toledo,
J Takahashi,
A H Tang,
Z Tang,
L H Tarini,
T Tarnowsky,
D Thein,
J H Thomas,
J Tian,
A R Timmins,
S Timoshenko,
D Tlusty,
M Tokarev,
V N Tram,
A L Trattner,
S Trentalange,
R E Tribble,
O D Tsai,
J Ulery,
T Ullrich,
D G Underwood,
G Van Buren,
M van Leeuwen,
A M Vander Molen,
J A Vanfossen Jr,
R Varma,
G M S Vasconcelos,
I M Vasilevski,
A N Vasiliev,
F Videbaek,
S E Vigdor,
Y P Viyogi,
S Vokal,
S A Voloshin,
M Wada,
M Walker,
F Wang,
G Wang,
J S Wang,
Q Wang,
X Wang,
X L Wang,
Y Wang,
G Webb,
J C Webb,
G D Westfall,
C Whitten Jr,
H Wieman,
S W Wissink,
R Witt,
Y Wu,
W Xie,
N Xu,
Q H Xu,
Y Xu,
Z Xu,
P Yang,
P Yepes,
K Yip,
I-K Yoo,
Q Yue,
M Zawisza,
H Zbroszczyk,
W Zhan,
S Zhang,
W M Zhang,
X P Zhang,
Y Zhang,
Z P Zhang,
Y Zhao,
C Zhong,
J Zhou,
R Zoulkarneev,
Y Zoulkarneeva,
J X Zuo
Argonne National Laboratory, Argonne, Illinois 60439, USA.
We report K/pi fluctuations from Au + Au collisions at sqrt[s(NN)]= 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/pi fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb + Pb collisions at sqrt[s(NN)]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/pi fluctuations and results for charge-separated fluctuations. We observe that the K/pi fluctuations scale with the charged particle multiplicity density.
A Adare,
S Afanasiev,
C Aidala,
N N Ajitanand,
Y Akiba,
H Al-Bataineh,
J Alexander,
K Aoki,
L Aphecetche,
R Armendariz,
S H Aronson,
J Asai,
E T Atomssa,
R Averbeck,
T C Awes,
B Azmoun,
V Babintsev,
M Bai,
G Baksay,
L Baksay,
A Baldisseri,
K N Barish,
P D Barnes,
B Bassalleck,
A T Basye,
S Bathe,
S Batsouli,
V Baublis,
C Baumann,
A Bazilevsky,
S Belikov,
R Bennett,
A Berdnikov,
Y Berdnikov,
A A Bickley,
J G Boissevain,
H Borel,
K Boyle,
M L Brooks,
H Buesching,
V Bumazhnov,
G Bunce,
S Butsyk,
C M Camacho,
S Campbell,
B S Chang,
W C Chang,
J-L Charvet,
S Chernichenko,
J Chiba,
C Y Chi,
M Chiu,
I J Choi,
R K Choudhury,
T Chujo,
P Chung,
A Churyn,
V Cianciolo,
Z Citron,
C R Cleven,
B A Cole,
M P Comets,
P Constantin,
M Csanád,
T Csörgo,
T Dahms,
S Dairaku,
K Das,
G David,
M B Deaton,
K Dehmelt,
H Delagrange,
A Denisov,
D d'Enterria,
A Deshpande,
E J Desmond,
O Dietzsch,
A Dion,
M Donadelli,
O Drapier,
A Drees,
K A Drees,
A K Dubey,
A Durum,
D Dutta,
V Dzhordzhadze,
Y V Efremenko,
J Egdemir,
F Ellinghaus,
W S Emam,
T Engelmore,
A Enokizono,
H En'yo,
S Esumi,
K O Eyser,
B Fadem,
D E Fields,
M Finger Jr,
M Finger,
F Fleuret,
S L Fokin,
Z Fraenkel,
J E Frantz,
A Franz,
A D Frawley,
K Fujiwara,
Y Fukao,
T Fusayasu,
S Gadrat,
I Garishvili,
A Glenn,
H Gong,
M Gonin,
J Gosset,
Y Goto,
R Granier de Cassagnac,
N Grau,
S V Greene,
M Grosse Perdekamp,
T Gunji,
H-A Gustafsson,
T Hachiya,
A Hadj Henni,
C Haegemann,
J S Haggerty,
H Hamagaki,
R Han,
H Harada,
E P Hartouni,
K Haruna,
E Haslum,
R Hayano,
M Heffner,
T K Hemmick,
T Hester,
X He,
H Hiejima,
J C Hill,
R Hobbs,
M Hohlmann,
W Holzmann,
K Homma,
B Hong,
T Horaguchi,
D Hornback,
S Huang,
T Ichihara,
R Ichimiya,
Y Ikeda,
K Imai,
J Imrek,
M Inaba,
Y Inoue,
D Isenhower,
L Isenhower,
M Ishihara,
T Isobe,
M Issah,
A Isupov,
D Ivanischev,
B V Jacak,
J Jia,
J Jin,
O Jinnouchi,
B M Johnson,
K S Joo,
D Jouan,
F Kajihara,
S Kametani,
N Kamihara,
J Kamin,
M Kaneta,
J H Kang,
H Kanou,
J Kapustinsky,
D Kawall,
A V Kazantsev,
T Kempel,
A Khanzadeev,
K M Kijima,
J Kikuchi,
B I Kim,
D H Kim,
D J Kim,
E Kim,
S H Kim,
E Kinney,
K Kiriluk,
A Kiss,
E Kistenev,
A Kiyomichi,
J Klay,
C Klein-Boesing,
L Kochenda,
V Kochetkov,
B Komkov,
M Konno,
J Koster,
D Kotchetkov,
A Kozlov,
A Král,
A Kravitz,
J Kubart,
G J Kunde,
N Kurihara,
K Kurita,
M Kurosawa,
M J Kweon,
Y Kwon,
G S Kyle,
R Lacey,
Y-S Lai,
Y S Lai,
J G Lajoie,
D Layton,
A Lebedev,
D M Lee,
K B Lee,
M K Lee,
T Lee,
M J Leitch,
M A L Leite,
B Lenzi,
P Liebing,
T Liska,
A Litvinenko,
H Liu,
M X Liu,
X Li,
B Love,
D Lynch,
C F Maguire,
Y I Makdisi,
A Malakhov,
M D Malik,
V I Manko,
E Mannel,
Y Mao,
L Masek,
H Masui,
F Matathias,
M McCumber,
P L McGaughey,
N Means,
B Meredith,
Y Miake,
P Mikes,
K Miki,
T E Miller,
A Milov,
S Mioduszewski,
M Mishra,
J T Mitchell,
M Mitrovski,
A K Mohanty,
Y Morino,
A Morreale,
D P Morrison,
T V Moukhanova,
D Mukhopadhyay,
J Murata,
S Nagamiya,
Y Nagata,
J L Nagle,
M Naglis,
M I Nagy,
I Nakagawa,
Y Nakamiya,
T Nakamura,
K Nakano,
J Newby,
M Nguyen,
T Niita,
B E Norman,
R Nouicer,
A S Nyanin,
E O'Brien,
S X Oda,
C A Ogilvie,
H Ohnishi,
H Okada,
K Okada,
M Oka,
O O Omiwade,
Y Onuki,
A Oskarsson,
M Ouchida,
K Ozawa,
R Pak,
D Pal,
A P T Palounek,
V Pantuev,
V Papavassiliou,
J Park,
W J Park,
S F Pate,
H Pei,
J-C Peng,
H Pereira,
V Peresedov,
D Yu Peressounko,
C Pinkenburg,
M L Purschke,
A K Purwar,
H Qu,
J Rak,
A Rakotozafindrabe,
I Ravinovich,
K F Read,
S Rembeczki,
M Reuter,
K Reygers,
V Riabov,
Y Riabov,
D Roach,
G Roche,
S D Rolnick,
A Romana,
M Rosati,
S S E Rosendahl,
P Rosnet,
P Rukoyatkin,
P Ruzicka,
V L Rykov,
B Sahlmueller,
N Saito,
T Sakaguchi,
S Sakai,
K Sakashita,
H Sakata,
V Samsonov,
S Sato,
T Sato,
S Sawada,
K Sedgwick,
J Seele,
R Seidl,
A Yu Semenov,
V Semenov,
R Seto,
D Sharma,
I Shein,
A Shevel,
T-A Shibata,
K Shigaki,
M Shimomura,
K Shoji,
P Shukla,
A Sickles,
C L Silva,
D Silvermyr,
C Silvestre,
K S Sim,
B K Singh,
C P Singh,
V Singh,
S Skutnik,
M Slunecka,
A Soldatov,
R A Soltz,
W E Sondheim,
S P Sorensen,
I V Sourikova,
F Staley,
P W Stankus,
E Stenlund,
M Stepanov,
A Ster,
S P Stoll,
T Sugitate,
C Suire,
A Sukhanov,
J Sziklai,
T Tabaru,
S Takagi,
E M Takagui,
A Taketani,
R Tanabe,
Y Tanaka,
K Tanida,
M J Tannenbaum,
A Taranenko,
P Tarján,
H Themann,
T L Thomas,
M Togawa,
A Toia,
J Tojo,
L Tomásek,
Y Tomita,
H Torii,
R S Towell,
V-N Tram,
I Tserruya,
Y Tsuchimoto,
C Vale,
H Valle,
H W van Hecke,
A Veicht,
J Velkovska,
R Vertesi,
A A Vinogradov,
M Virius,
V Vrba,
E Vznuzdaev,
M Wagner,
D Walker,
X R Wang,
Y Watanabe,
F Wei,
J Wessels,
S N White,
D Winter,
C L Woody,
M Wysocki,
W Xie,
Y L Yamaguchi,
K Yamaura,
R Yang,
A Yanovich,
Z Yasin,
J Ying,
S Yokkaichi,
G R Young,
I Younus,
I E Yushmanov,
W A Zajc,
O Zaudtke,
C Zhang,
S Zhou,
J Zimányi,
L Zolin
University of Colorado, Boulder, Colorado 80309, USA.
The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y|<0.35 in p+p collisions at square root of s=200 GeV is measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range 2<pT<7 GeV/c. The ratio of the yield of electrons from bottom to that from charm is presented. The ratio is determined using partial D/D-->e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in pT. A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mub.
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