Net charge fluctuations in Au+Au collisions at √sNN=130 GeV -: art. no. 044905

被引：110

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

Cardenas, A

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

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

[11] Joint Inst Nucl Res, 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 C | 2003年 / 68卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.68.044905

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 the results of charged particle fluctuations measurements in Au+Au collisions at rootS(NN)=130 GeV using the STAR detector. Dynamical fluctuations measurements are presented for inclusive charged particle multiplicities as well as for identified charged pions, kaons, and protons. The net charge dynamical fluctuations are found to be large and negative providing clear evidence that positive and negative charged p article production is correlated within the pseudorapidity range investigated. Correlations are smaller than expected based on model-dependent predictions for a resonance gas or a quark-gluon gas which undergoes fast hadronization and freeze-out. Qualitative agreement is found with comparable scaled p+p measurements and a heavy ion jet interaction generation model calculation based on independent particle collisions, although a small deviation from the 1/N scaling dependence expected from this model is observed.

引用

页码：449051 / 449059

页数：9

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