{radical}s{sub NN} = 130 GeV Au+Au碰撞中p{下标t}中间带电强子产生的中心性和伪快度依赖性

IF 3.2 2区物理与天体物理 Q2 PHYSICS, NUCLEAR

Physical Review C Pub Date : 2004-04-15 DOI:10.1103/PhysRevC.70.044901

J. Adams, M. Aggarwal, Z. Ahammed, J. Amonett, B. Anderson, D. Arkhipkin, G. S. Averichev, Y. Bai, J. Balewski, O. Barannikova, L. Barnby, J. Baudot, S. Bekele, V. Belaga, R. Bellwied, J. Berger, B. I. Bezverkhny, S. Bharadwaj, V. Bhatia, H. Bichsel, A. Billmeier, L. Bland, C. Blyth, B. Bonner, M. Botje, A. Boucham, A. Brandin, A. Bravar, M. Bysterský, R. Cadman, X. Cai, H. Caines, M. Sanchez, J. Carroll, J. Castillo, D. Cebra, P. Chaloupka, S. Chattopdhyay, H. Chen, Y. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, J. Coffin, T. Cormier, J. Cramer, H. Crawford, D. Das, S. Das, M. M. Moura, A. Derevschikov, L. Didenko, T. Dietel, W. Dong, X. Dong, J. Draper, F. Du, A. Dubey, V. Dunin, J. Dunlop, M. Mazumdar, V. Eckardt, W. Edwards, L. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, J. Faivre, R. Fatémi, J. Fedorišin, K. Filimonov, P. Filip, E. Finch, V. Fine, Y. Fisyak, K. J. Foley, K. Fomenko, J. Fu, C. Gagliardi, J. Gans, M. Ganti, L. Gaudichet, F. Geurts, V. G

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引用次数: 1

摘要

我们提出了在{radical}(s{sub NN})=130 GeV的Au+Au碰撞中带电强子产生的STAR测量值作为中心度的函数。测量覆盖了0.2 p{sub T}{sup cut}的相空间区域，并在参与者和二元标度的框架下研究了结果。在测量的p{sub T}区域中，没有观察到带电强子产率的参与者标度的明确证据。通过颗粒生成的二元标度分数研究了硬散射过程的相对重要性。

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Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub t} in Au+Au collisions at {radical}s{sub NN} = 130 GeV

We present STAR measurements of charged hadron production as a function of centrality in Au+Au collisions at {radical}(s{sub NN})=130 GeV. The measurements cover a phase space region of 0.2 p{sub T}{sup cut}, and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured p{sub T} region. The relative importance of hard scattering processes is investigated through binary scaling fraction of particle production.

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来源期刊

Physical Review C PHYSICS, NUCLEAR-

CiteScore

5.80

自引率

35.50%

发文量

863

期刊介绍： Physical Review C (PRC) is a leading journal in theoretical and experimental nuclear physics, publishing more than two-thirds of the research literature in the field. PRC covers experimental and theoretical results in all aspects of nuclear physics, including: Nucleon-nucleon interaction, few-body systems Nuclear structure Nuclear reactions Relativistic nuclear collisions Hadronic physics and QCD Electroweak interaction, symmetries Nuclear astrophysics