Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions at √sNN=130 GeV -: art. no. 112303

被引：183

作者：

Adler, C ^{[1
]}

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

Bland, LC

Blyth, CO

Bonner, BE

Bossingham, R

Boucham, A

Brandin, A

Caines, H

Sánchez, MCD

Cardenas, A

Carroll, J

Castillo, J

Castro, M

Cebra, D

Chattopadhyay, S

Chen, ML

Chen, Y

Chernenko, SP

Cherney, M

Chikanian, A

Choi, B

Christie, W

Coffin, JP

Conin, L

Cormier, TM

Cramer, JG

Crawford, HJ

DeMello, M

Deng, WS

Derevschikov, AA

Didenko, L

Draper, JE

Dunin, VB

Dunlop, JC

Eckardt, V

机构：

[1] Univ Frankfurt, D-6000 Frankfurt, Germany

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

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

[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] Joint Inst Nucl Res Dubna, Lab High Energy, Dubna, Russia

[10] Joint Inst Nucl Res Dubna, Particle Phys Lab, Dubna, Russia

[11] Indiana Univ, Bloomington, IN 47408 USA

[12] Inst Rech Subatom, Strasbourg, France

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

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

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

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

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

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

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

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

[21] Inst High Energy Phys, Protvino, Russia

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

[23] Rice Univ, Houston, TX 77251 USA

[24] Univ Sao Paulo, Sao Paulo, Brazil

[25] SUBATECH, Nantes, France

[26] Univ Texas, Austin, TX 78712 USA

[27] Warsaw Univ Technol, Warsaw, Poland

[28] Univ Washington, Seattle, WA 98195 USA

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.87.112303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The minimum-bias multiplicity distribution and the transverse momentum and pseudorapidity distributions for central collisions have been measured for negative hadrons (h(-)) in Au + Au interactions at roots(NN) = 130 GeV. The multiplicity density at midrapidity for the 5% most central interactions is dN(h)-/d eta\(eta =0) = 280 +/- (stat) +/- 20(syst), an increase per participant of 38% relative to p (p) over bar collisions at the same energy. The mean transverse momentum is 0.508 +/- 0.012 GcV/c and is larger than in central Pb + Pb collisions at lower energies. The scaling of the h(-) yield per participant is a strong function of p(perpendicular to). The pseudorapidity distribution is almost constant within \eta\ < 1.

引用

页码：112303 / 112303

页数：5

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