Spectra of identified high-pT π± and p((p)over-bar ) in Cu + Cu collisions at √sNN=200 GeV

被引：20

作者：

Abelev, B. I. ^{[1
]}

Aggarwal, M. M. ^{[31
]}

Ahammed, Z. ^{[48
]}

Alakhverdyants, A. V. ^{[17
]}

Anderson, B. D. ^{[18
]}

Arkhipkin, D. ^{[4
]}

Averichev, G. S. ^{[17
]}

Balewski, J. ^{[22
]}

Barnby, L. S. ^{[3
]}

Baumgart, S. ^{[53
]}

Beavis, D. R. ^{[4
]}

Bellwied, R. ^{[51
]}

Benedosso, F. ^{[27
,28
]}

Betancourt, M. J. ^{[22
]}

Betts, R. R. ^{[1
]}

Bhasin, A. ^{[16
]}

Bhati, A. K. ^{[31
]}

Bichsel, H. ^{[50
]}

Bielcik, J. ^{[10
]}

Bielcikova, J. ^{[11
]}

Biritz, B. ^{[7
]}

Bland, L. C. ^{[4
]}

Bonner, B. E. ^{[37
]}

Bouchet, J. ^{[18
]}

Braidot, E. ^{[27
,28
]}

Brandin, A. V. ^{[25
]}

Bridgeman, A. ^{[2
]}

Bruna, E. ^{[53
]}

Bueltmann, S. ^{[30
]}

Bunzarov, I. ^{[17
]}

Burton, T. P. ^{[3
]}

Cai, X. Z. ^{[41
]}

Caines, H. ^{[53
]}

Sanchez, M. Calderon de la Barca ^{[6
]}

Catu, O. ^{[53
]}

Cebra, D. ^{[6
]}

Cendejas, R. ^{[7
]}

Cervantes, M. C. ^{[43
]}

Chajecki, Z. ^{[29
]}

Chaloupka, P. ^{[11
]}

Chattopadhyay, S. ^{[48
]}

Chen, H. F. ^{[39
]}

Chen, J. H. ^{[41
]}

Chen, J. Y. ^{[52
]}

Cheng, J. ^{[45
]}

Cherney, M. ^{[9
]}

Chikanian, A. ^{[53
]}

Choi, K. E. ^{[35
]}

Christie, W. ^{[4
]}

Chung, P. ^{[11
]}

机构：

[1] Univ Illinois, Chicago, IL 60607 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] Univ Birmingham, Birmingham, W Midlands, England

[4] Brookhaven Natl Lab, Upton, NY 11973 USA

[5] Univ Calif Berkeley, Berkeley, CA 94720 USA

[6] Univ Calif Davis, Davis, CA 95616 USA

[7] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[8] Univ Estadual Campinas, Sao Paulo, Brazil

[9] Creighton Univ, Omaha, NE 68178 USA

[10] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic

[11] AS CR, Inst Nucl Phys, Rez 25068, Czech Republic

[12] Goethe Univ Frankfurt, Frankfurt, Germany

[13] Inst Phys, Bhubaneswar 751005, Orissa, India

[14] Indian Inst Technol, Mumbai, Maharashtra, India

[15] Indiana Univ, Bloomington, IN 47408 USA

[16] Univ Jammu, Jammu 180001, India

[17] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[18] Kent State Univ, Kent, OH 44242 USA

[19] Univ Kentucky, Lexington, KY 40506 USA

[20] Inst Modern Phys, Lanzhou, Peoples R China

[21] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[22] MIT, Cambridge, MA 02139 USA

[23] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[24] Michigan State Univ, E Lansing, MI 48824 USA

[25] Moscow Engn Phys Inst, Moscow 115409, Russia

[26] CUNY City Coll, New York, NY 10031 USA

[27] NIKHEF, Amsterdam, Netherlands

[28] Univ Utrecht, Amsterdam, Netherlands

[29] Ohio State Univ, Columbus, OH 43210 USA

[30] Old Dominion Univ, Norfolk, VA 23529 USA

[31] Panjab Univ, Chandigarh 160014, India

[32] Penn State Univ, University Pk, PA 16802 USA

[33] Inst High Energy Phys, Protvino, Russia

[34] Purdue Univ, W Lafayette, IN 47907 USA

[35] Pusan Natl Univ, Pusan 609735, South Korea

[36] Univ Rajasthan, Jaipur 302004, Rajasthan, India

[37] Rice Univ, Houston, TX 77251 USA

[38] Univ Sao Paulo, Sao Paulo, Brazil

[39] Univ Sci & Technol China, Anhua 230026, Peoples R China

[40] Shandong Univ, Jinan 250100, Peoples R China

[41] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[42] SUBATECH, Nantes, France

[43] Texas A&M Univ, College Stn, TX 77843 USA

[44] Univ Texas Austin, Austin, TX 78712 USA

[45] Tsinghua Univ, Beijing 100084, Peoples R China

[46] USN Acad, Annapolis, MD 21402 USA

[47] Valparaiso Univ, Valparaiso, IN 46383 USA

[48] Ctr Variable Energy Cyclotron, Kolkata 700064, India

[49] Warsaw Univ Technol, Warsaw, Poland

[50] Univ Washington, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW C | 2010年 / 81卷 / 05期

基金：

巴西圣保罗研究基金会; 英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

LARGE TRANSVERSE-MOMENTUM; D+AU COLLISIONS; HADRONS; QUARK; P+P;

D O I：

10.1103/PhysRevC.81.054907

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We report new results on identified (anti) proton and charged pion spectra at large transverse momenta (3 < p(T) < 10 GeV/c) from Cu + Cu collisions at root s(NN) = 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). This study explores the system size dependence of two novel features observed at RHIC with heavy ions: the hadron suppression at high-p(T) and the anomalous baryon to meson enhancement at intermediate transverse momenta. Both phenomena could be attributed to the creation of a new form of QCD matter. The results presented here bridge the system size gap between the available pp and Au + Au data, and allow for a detailed exploration of the onset of the novel features. Comparative analysis of all available 200 GeV data indicates that the system size is a major factor determining both the magnitude of the hadron spectra suppression at large transverse momenta and the relative baryon to meson enhancement.

引用

页数：8

共 20 条

[1] Abelev B., PHYS REV C UNPUB
[2] Identified baryon and meson distributions at large transverse momenta from Au plus Au collisions at √SNN=200 GeV
Abelev, B. I.
Aggarwal, M. M.
Ahammed, Z.
Anderson, B. D.
Anderson, M.
Arkhipkin, D.
Averichev, G. S.
Bai, Y.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baudot, J.
Bekele, S.
Belaga, V. V.
Bellingeri-Laurikainen, A.
Bellwied, R.
Benedosso, F.
Bhardwaj, S.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Blyth, S-L.
Bonner, B. E.
Botje, M.
Bouchet, J.
Brandin, A. V.
Bravar, A.
Burton, T. P.
Bystersky, M.
Cadman, R. V.
Cai, X. Z.
Caines, H.
de la Barca Sanchez, M. Calderon
Castillo, J.
Catu, O.
Cebra, D.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Coffin, J. P.
Cormier, T. M.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (15)
[3] Energy dependence of π±, p and (p)over-bar transverse momentum spectra for Au+Au collisions at √SNN=62.4 and 200 GeV
Abelev, B. I.
Aggarwal, M. M.
Ahammed, Z.
Anderson, B. D.
Arkhipkin, D.
Averichev, G. S.
Bai, Y.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baumgart, S.
Belaga, V. V.
Bellingeri-Laurikainen, A.
Bellwied, R.
Benedosso, F.
Betts, R. R.
Bharadwaj, S.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Billmeier, A.
Bland, L. C.
Blyth, S. -L.
Bombara, M.
Bonner, B. E.
Botje, M.
Bouchet, J.
Brandin, A. V.
Bravar, A.
Burton, T. P.
Bystersky, M.
Cadman, R. V.
Cai, X. Z.
Caines, H.
de la Barca Sanchez, M. Calderon
Callner, J.
Catu, O.
Cebra, D.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, H. A.
[J]. PHYSICS LETTERS B, 2007, 655 (3-4) : 104 - 113
[4] Identified charged particles in quark and gluon jets
Abreu, P
Adam, W
Adye, T
Adzic, P
Albrecht, Z
Alderweireld, T
Alekseev, GD
Alemany, R
Allmendinger, T
Allport, PP
Almehed, S
Amaldi, U
Amapane, N
Amato, S
Anassontzis, EG
Andersson, P
Andreazza, A
Andringa, S
Antilogus, P
Apel, WD
Arnoud, Y
Åsman, B
Augustin, JE
Augustinus, A
Baillon, P
Ballestrero, A
Bambade, P
Barao, F
Barbiellini, G
Barbier, R
Bardin, DY
Barker, G
Baroncelli, A
Battaglia, M
Baubillier, M
Becks, KH
Begalli, M
Behrmann, A
Beilliere, P
Belokopytov, Y
Belous, K
Benekos, NC
Benvenuti, AC
Berat, C
Berggren, M
Bertrand, D
Besancon, M
Bigi, M
Bilenky, MS
Bizouard, MA
[J]. EUROPEAN PHYSICAL JOURNAL C, 2000, 17 (02): : 207 - 222
[5] Identified hadron spectra at large transverse momentum in p+p and d+Au collisions at,√SNN=200 GeV
Adams, J.
Aggarwal, M. M.
Ahammed, Z.
Amonett, J.
Anderson, B. D.
Anderson, M.
Arkhipkin, D.
Averichev, G. S.
Badyal, S. K.
Bai, Y.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baudot, J.
Bekele, S.
Belaga, V. V.
Bellingeri-Laurikainen, A.
Bellwied, R.
Bezverkhny, B. I.
Bharadwaj, S.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Billmeier, A.
Bland, L. C.
Blyth, C. O.
Blyth, S. -L.
Bonner, B. E.
Botje, M.
Bouchet, J.
Brandin, A. V.
Bravar, A.
Bystersky, M.
Cadman, R. V.
Cai, X. Z.
Caines, H.
Sánchez, M. Calderón de la Barca
Castillo, J.
Catu, O.
Cebra, D.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, Y.
Cheng, J.
Cherney, M.
[J]. PHYSICS LETTERS B, 2006, 637 (03) : 161 - 169
[6] Pion, kaon, proton and anti-proton transverse momentum distributions from p+p and d+Au collisions at √SNN=200GeV
Adams, J
Aggarwal, MM
Ahammed, Z
Amonett, J
Anderson, BD
Arkhipkin, D
Averichev, GS
Badyal, SK
Bai, Y
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Bekele, S
Belaga, VV
Bellwied, R
Berger, J
Bezverkhny, BI
Bharadwaj, S
Bhasin, A
Bhati, AK
Bhatia, VS
Bichsel, H
Bielcik, J
Bielcikova, J
Billmeier, A
Bland, LC
Blyth, CO
Bonner, BE
Botje, M
Boucham, A
Brandin, AV
Bravar, A
Bystersky, M
Cadman, R
Cai, XZ
Caines, H
Sánchez, MCD
Castillo, J
Catu, O
Cebra, D
Chajecki, Z
Chaloupka, R
Chattopadhyay, S
Chen, HF
Chen, Y
Cheng, J
Cherney, M
Chikanian, A
Christie, W
[J]. PHYSICS LETTERS B, 2005, 616 (1-2) : 8 - 16
[7] Transverse-momentum and collision-energy dependence of high-pT hadron suppression in Au+Au collisions at ultrarelativistic energies -: art. no. 172302
Adams, J
Adler, C
Aggarwal, MM
Ahammed, Z
Amonett, J
Anderson, BD
Anderson, M
Arkhipkin, D
Averichev, GS
Badyal, SK
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Bekele, S
Belaga, VV
Bellwied, R
Berger, J
Bezverkhny, BI
Bhardwaj, S
Bhaskar, P
Bhati, AK
Bichsel, H
Billmeier, A
Bland, LC
Blyth, CO
Bonner, BE
Botje, M
Boucham, A
Brandin, A
Bravar, A
Cadman, RV
Cai, XZ
Caines, H
Sánchez, MCD
Carroll, J
Castillo, J
Castro, M
Cebra, D
Chaloupka, P
Chattopadhyay, S
Chen, HF
Chen, Y
Chernenko, SP
Cherney, M
Chikanian, A
Choi, B
Christie, W
Coffin, JP
Cormier, TM
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (17)
[8] Evidence from d+Au measurements for final-state suppression of high-pT hadrons in Au plus Au collisions at RHIC -: art. no. 073204
Adams, J
Adler, C
Aggarwal, MM
Ahammed, Z
Amonett, J
Anderson, BD
Anderson, M
Arkhipkin, D
Averichev, GS
Badyal, SK
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Bekele, S
Belaga, VV
Bellwied, R
Berger, J
Bezverkhny, BI
Bhardwaj, S
Bhaskar, P
Bhati, AK
Bichsel, H
Billmeier, A
Bland, LC
Blyth, CO
Bonner, BE
Botje, M
Boucham, A
Brandin, A
Bravar, A
Cadman, RV
Cai, XZ
Caines, H
Sánchez, MCD
Carroll, J
Castillo, J
Castro, M
Cebra, D
Chaloupka, P
Chattopadhyay, S
Chen, HF
Chen, Y
Chernenko, SP
Cherney, M
Chikanian, A
Choi, B
Christie, W
Coffin, JP
Cormier, TM
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (07)
[9] Disappearance of back-to-back high-pT hadron correlations in central Au+Au collisions at √sNN=200 GeV -: art. no. 082302
Adler, C
Ahammed, Z
Allgower, C
Amonett, J
Anderson, BD
Anderson, M
Averichev, GS
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Bekele, S
Belaga, VV
Bellwied, R
Berger, J
Bichsel, H
Billmeier, A
Bland, LC
Blyth, CO
Bonner, BE
Boucham, A
Brandin, A
Bravar, A
Cadman, RV
Caines, H
Sánchez, MCD
Cardenas, A
Carroll, J
Castillo, J
Castro, M
Cebra, D
Chaloupka, P
Chattopadhyay, S
Chen, Y
Chernenko, SP
Cherney, M
Chikanian, A
Choi, B
Christie, W
Coffin, JP
Cormier, TM
Corral, MM
Cramer, JG
Crawford, HJ
Derevschikov, AA
Didenko, L
Dietel, T
Draper, JE
Dunin, VB
Dunlop, JC
[J]. PHYSICAL REVIEW LETTERS, 2003, 90 (08) : 6 - 082302
[10] The RHIC zero-degree calorimeters
Adler, C
Denisov, A
Garcia, E
Murray, M
Strobele, H
White, S
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 461 (1-3) : 337 - 340

← 1 2 →