Coherent ρ0 production in ultraperipheral heavy-ion collisions -: art. no. 272302

被引:130
|
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
Bravar, A
Cadman, RV
Caines, H
Sánchez, MCD
Cardenas, A
Carroll, J
Castillo, J
Castro, M
Cebra, D
Chaloupka, P
Chattopadhyay, S
Chen, Y
Chernenko, SP
Cherney, M
Chikanian, A
Choi, B
Christie, W
Coffin, JP
Cormier, TM
Cramer, JG
Crawford, HJ
Deng, WS
Derevschikov, AA
Didenko, L
Dietel, T
Draper, JE
Dunin, VB
Dunlop, JC
Eckardt, V
机构
[1] Univ Frankfurt, D-6000 Frankfurt, Germany
[2] Joint Inst Nucl Res Dubna, Particle Phys Lab, Dubna, Russia
[3] Indiana Univ, Bloomington, IN 47408 USA
[4] Inst Rech Subatom, Strasbourg, France
[5] Kent State Univ, Kent, OH 44242 USA
[6] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[7] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[8] Michigan State Univ, E Lansing, MI 48824 USA
[9] Moscow Phys Engn Inst, Moscow, Russia
[10] Cuny City Coll, New York, NY 10031 USA
[11] Ohio State Univ, Columbus, OH 43210 USA
[12] Penn State Univ, University Pk, PA 16802 USA
[13] Inst High Energy Phys, Protvino, Russia
[14] Purdue Univ, W Lafayette, IN 47907 USA
[15] Rice Univ, Houston, TX 77251 USA
[16] Univ Sao Paulo, Sao Paulo, Brazil
[17] SUBATECH, Nantes, France
[18] Texas A&M Univ, College Stn, TX 77843 USA
[19] Univ Texas, Austin, TX 78712 USA
[20] Warsaw Univ Technol, Warsaw, Poland
[21] Univ Washington, Seattle, WA 98195 USA
[22] Wayne State Univ, Detroit, MI 48201 USA
[23] HZNU, CCNU, Inst Particle Phys, Wuhan 430079, Peoples R China
[24] Yale Univ, New Haven, CT 06520 USA
[25] Argonne Natl Lab, Argonne, IL 60439 USA
[26] Brookhaven Natl Lab, Upton, NY 11973 USA
[27] Univ Birmingham, Birmingham, W Midlands, England
[28] Univ Calif Berkeley, Berkeley, CA 94720 USA
[29] Univ Calif Davis, Davis, CA 95616 USA
[30] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[31] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[32] Creighton Univ, Omaha, NE 68178 USA
[33] Joint Inst Nucl Res Dubna, Lab High Energy, Dubna, Russia
关键词
D O I
10.1103/PhysRevLett.89.272302
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The STAR Collaboration reports the first observation of exclusive rho(0) photoproduction, AuAu-->AuAurho(0), and rho(0) production accompanied by mutual nuclear Coulomb excitation, AuAu-->Au(star)Au(star)rho(0), in ultraperipheral heavy-ion collisions. The rho(0) have low transverse momenta, consistent with coherent coupling to both nuclei. The cross sections at s(NN)=130 GeV agree with theoretical predictions treating rho(0) production and Coulomb excitation as independent processes.
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页数:6
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