Multistrange baryon elliptic flow in Au plus Au collisions at √SNN=200 GeV -: art. no. 122301

被引：165

作者：

Adams, J ^{[1
]}

Aggarwal, MM

Ahammed, Z

Amonett, J

Anderson, BD

Arkhipkin, D

Averichev, GS

Badyal, SK

Bai, Y

Balewski, J

Barannikova, O

Barnby, LS

Baudot, J

Bekele, S

Belaga, VV

Bellingeri-Laurikainen, A

Bellwied, R

Berger, J

Bezverkhny, BI

Bharadwaj, S

Bhasin, A

Bhati, AK

Bhatia, VS

Bichsel, H

Bielcik, J

Bielcikova, J

Billmeier, A

Bland, LC

Blyth, CO

Blyth, SL

Bonner, BE

Botje, M

Boucham, A

Bouchet, J

Brandin, AV

Bravar, A

Bystersky, M

Cadman, RV

Cai, XZ

Caines, H

Calderón de la Barca Sánchez, M

Castillo, J

Catu, O

Cebra, D

Chajecki, Z

Chaloupka, P

Chattopadhyay, S

Chen, HF

Chen, JH

Chen, Y

机构：

[1] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

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

[3] Univ Bern, CH-3012 Bern, Switzerland

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

[5] CALTECH, Pasadena, CA 91125 USA

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

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

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

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

[10] Creighton Univ, Omaha, NE 68178 USA

[11] AS CR, Inst Nucl Phys, Rez 25068, Czech Republic

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

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

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

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

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

[17] Indiana Univ, Bloomington, IN 47408 USA

[18] Inst Rech Subatom, Strasbourg, France

[19] Univ Jammu, Jammu 180001, India

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

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

[22] MIT, Cambridge, MA 02139 USA

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

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

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

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

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

[28] Univ Utrecht, Amsterdam, Netherlands

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

[30] Panjab Univ, Chandigarh 160014, India

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

[32] Inst High Energy Phys, Protvino, Russia

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

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

[35] Rice Univ, Houston, TX 77251 USA

[36] Univ Sao Paulo, Sao Paulo, Brazil

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

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

[39] SUBATECH, Nantes, France

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

[41] Univ Texas, Austin, TX 78712 USA

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

[43] Valparaiso Univ, Valparaiso, IN 46383 USA

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

[45] Warsaw Univ Technol, Warsaw, Poland

[46] Univ Washington, Seattle, WA 98195 USA

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

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.95.122301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the first measurement of elliptic flow nu(2)(p(T)) of multistrange baryons Xi(-)+Xi(+) and Omega(-)+Omega(+) in heavy-ion collisions. In minimum-bias Au+Au collisions at root s(NN)=200 GeV, a significant amount of elliptic flow, comparable to other nonstrange baryons, is observed for multistrange baryons which are expected to be particularly sensitive to the dynamics of the partonic stage of heavy-ion collisions. The p(T) dependence of nu(2) of the multistrange baryons confirms the number of constituent quark scaling previously observed for lighter hadrons. These results support the idea that a substantial fraction of the observed collective motion is developed at the early partonic stage in ultrarelativistic nuclear collisions at the Relativistic Heavy Ion Collider.

引用

页数：6

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