Identified particle distributions in pp and Au+Au collisions at √sNN=200 GeV -: art. no. 112301

被引：396

作者：

Adams, J ^{[1
]}

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

机构：

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

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

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

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

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

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

[7] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[8] Creighton Univ, Omaha, NE 68178 USA

[9] Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic

[10] JINR, Lab High Energy, Dubna, Russia

[11] JINR, Particle Phys Lab, Dubna, Russia

[12] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany

[13] Indiana Univ, Bloomington, IN 47408 USA

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

[15] Inst Rech Subatom, Strasbourg, France

[16] Univ Jammu, Jammu 180001, India

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

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

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

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

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

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

[23] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

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

[25] Panjab Univ, Chandigarh 160014, India

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

[27] Inst High Energy Phys, Protvino, Russia

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

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

[30] Rice Univ, Houston, TX 77251 USA

[31] Univ Sao Paulo, Sao Paulo, Brazil

[32] Univ Sci & Technol China, Anhui 230027, Peoples R China

[33] Acad Sinica, Shanghai Inst Nucl Res, Shanghai 201800, Peoples R China

[34] SUBATECH, Nantes, France

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

[36] Univ Texas, Austin, TX 78712 USA

[37] Valparaiso Univ, Valparaiso, IN 46383 USA

[38] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India

[39] Warsaw Univ Technol, Warsaw, Poland

[40] Univ Washington, Seattle, WA 98195 USA

[41] Wayne State Univ, Detroit, MI 48201 USA

[42] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China

[43] Yale Univ, New Haven, CT 06520 USA

[44] Univ Zagreb, HR-10002 Zagreb, Croatia

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 11期

基金：

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

关键词：

D O I：

10.1103/PhysRevLett.92.112301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Transverse mass and rapidity distributions for charged pions, charged kaons, protons, and antiprotons are reported for roots(NN)=200 GeV pp and Au+Au collisions at Relativistic Heary Ion Collider (RHIC). Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.

引用

页码：112301 / 1

页数：6

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