Multistrange baryon production in Au-Au collisions at √sNN=130 GeV -: art. no. 182301

被引：127

作者：

Adams, J ^{[1
]}

Adler, C

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

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

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

de Moura, MM

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

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

[12] Joint Inst Nucl Res Dubna, 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 H, NL-1009 DB 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, Hefei 230027, Anhui, 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] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, 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, CCNU, Inst Particle Phys, Wuhan 430079, Peoples R China

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

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 18期

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; 中国国家自然科学基金; 美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.182301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transverse mass spectra and midrapidity yields for Xis and Omegas are presented. For the 10% most central collisions, the (Xi) over bar (+)/h(-) ratio increases from the Super Proton Synchrotron to the Relativistic Heavy Ion Collider energies while the Xi(-)/h(-) stays approximately constant. A hydrodynamically inspired model fit to the Xi spectra, which assumes a thermalized source, seems to indicate that these multistrange particles experience a significant transverse flow effect, but are emitted when the system is hotter and the flow is smaller than values obtained from a combined fit to pi, K, p, and Lambdas.

引用

页码：182301 / 1

页数：6

共 35 条

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