Midrapidity φ production in Au+Au collisions at √sNN=130 GeV -: art. no. 041901

被引:94
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
Boucham, A
Brandin, A
Cadman, RV
Caines, H
Sánchez, MCDB
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
Cormier, TM
Cramer, JG
Crawford, HJ
DeMello, M
Deng, WS
Derevschikov, AA
Didenko, L
Draper, JE
Dunin, VB
Dunlop, JC
Eckardt, V
Efimov, LG
机构
[1] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany
[2] Argonne Natl Lab, Argonne, IL 60439 USA
[3] Brookhaven Natl Lab, Upton, NY 11973 USA
[4] Univ Birmingham, Birmingham, W Midlands, England
[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] Joint Inst Nucl Res Dubna, Lab High Energy, Dubna, Russia
[11] Joint Inst Nucl Res Dubna, Particle Phys Lab, Dubna, Russia
[12] Indiana Univ, Bloomington, IN 47408 USA
[13] Inst Rech Subatom, Strasbourg, France
[14] Kent State Univ, Kent, OH 44242 USA
[15] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[16] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[17] Michigan State Univ, E Lansing, MI 48824 USA
[18] Moscow Engn Phys Inst, Moscow 115409, Russia
[19] CUNY City Coll, New York, NY 10031 USA
[20] Ohio State Univ, Columbus, OH 43210 USA
[21] Penn State Univ, University Pk, PA 16802 USA
[22] Inst High Energy Phys, Protvino, Russia
[23] Purdue Univ, W Lafayette, IN 47907 USA
[24] Rice Univ, Houston, TX 77251 USA
[25] Univ Sao Paulo, Sao Paulo, Brazil
[26] SUBATECH, Nantes, France
[27] Univ Texas, Austin, TX 78712 USA
[28] Warsaw Univ Technol, Warsaw, Poland
[29] Univ Washington, Seattle, WA 98195 USA
[30] Wayne State Univ, Detroit, MI 48201 USA
[31] Yale Univ, New Haven, CT 06520 USA
来源
PHYSICAL REVIEW C | 2002年 / 65卷 / 04期
关键词
D O I
10.1103/PhysRevC.65.041901
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 first measurement of midrapidity vector meson phi production in Au+Au collisions at RHIC (roots(NN)=130 GeV) from the STAR detector. For the 11% highest multiplicity collisions, the slope parameter from an exponential fit to the transverse mass distribution is T=379+/-50(stat)+/-45(syst) MeV, the yield dN/dy=5.73+/-0.37(stat)+/-0.69(syst) per event, and the ratio N-phi/Nh- is found to be 0.021+/-0.001(stat)+/-0.004(syst). The measured ratio N-phi/N-h(-) and T for the phi meson at midrapidity do not change for the selected multiplicity bins.
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