Centrality and pseudorapidity dependence of charged hadron production at intermediate pT in Au plus Au collisions at √sNN=130 GeV -: art. no. 044901

被引：13

作者：

Adams, J ^{[1
]}

Aggarwal, MM

Ahammed, Z

Amonett, J

Anderson, BD

Arkhipkin, D

Averichev, GS

Bai, Y

Balewski, J

Barannikova, O

Barnby, LS

Baudot, J

Bekele, S

Belaga, VV

Bellwied, R

Berger, J

Bezverkhny, BI

Bharadwaj, S

Bhatia, VS

Bichsel, H

Billmeier, A

Bland, LC

Blyth, CO

Bonner, BE

Botje, M

Boucham, A

Brandin, A

Bravar, A

Bystersky, M

Cadman, RV

Cai, XZ

Caines, H

Sánchez, MCD

Carroll, J

Castillo, J

Cebra, D

Chaloupka, P

Chattopdhyay, S

Chen, HF

Chen, Y

Cheng, J

Cherney, M

Chikanian, A

Christie, W

Coffin, JP

Cormier, TM

Cramer, JG

Crawford, HJ

Das, D

Das, S

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] CALTECH, Pasadena, CA 91125 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] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[9] Creighton Univ, Omaha, NE 68178 USA

[10] AS CR, Inst Nucl Phys, Prague, Czech Republic

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

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

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

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

[15] Indian Inst Technol, Bombay 400076, Maharashtra, India

[16] Indiana Univ, Bloomington, IN 47408 USA

[17] Inst Rech Subatom, Strasbourg, France

[18] Univ Jammu, Jammu 180001, India

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

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

[21] MIT, Cambridge, MA 02139 USA

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

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

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

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

[26] NIKHEF, Amsterdam, Netherlands

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

[28] Panjab Univ, Chandigarh 160014, India

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

[30] Inst High Energy Phys, Protvino, Russia

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

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

[33] Rice Univ, Houston, TX 77251 USA

[34] Univ Sao Paulo, Sao Paulo, Brazil

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

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

[37] SUBATECH, Nantes, France

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

[39] Univ Texas, Austin, TX 78712 USA

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

[41] Valparaiso Univ, Valparaiso, IN 46383 USA

[42] Variable Energy Cyclotron Ctr, Kolkata 700064, W Bengal, India

[43] Warsaw Univ Technol, Warsaw, Poland

[44] Univ Washington, Seattle, WA 98195 USA

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

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

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

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

来源：

PHYSICAL REVIEW C | 2004年 / 70卷 / 04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/PhysRevC.70.044901

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 present STAR measurements of charged hadron production as a function of centrality in Au+Au collisions at roots(NN)=130 GeV. The measurements cover a phase space region of 0.2<p(T)<6.0 GeV/c in transverse momentum and -1<eta<1 in pseudorapidity. Inclusive transverse momentum distributions of charged hadrons in the pseudorapidity region 0.5<\eta\<1 are reported and compared to our previously published results for \eta\<0.5. No significant difference is seen for inclusive p(T) distributions of charged hadrons in these two pseudorapidity bins. We measured dN/deta distributions and truncated mean p(T) in a region of p(T)>p(T)(cut), and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured p(T) region. The relative importance of hard scattering processes is investigated through binary scaling fraction of particle production.

引用

页码：044901 / 1

页数：11

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