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Title: Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider

Abstract

We show that particle species dependence of enhanced hadron production at intermediate transverse momentum (p{sub T}) for d+Au collisions at RHIC can be understood in terms of the hadronization from string fragmentation and the subsequent hadronic rescatterings in the final state. A multiphase transport model (AMPT) with two different hadronization mechanisms, string fragmentation or parton coalescence, is used in our study. When the hadrons are formed from string fragmentation, the subsequent hadronic rescatterings will result in particle mass dependence of the nuclear modification factor R{sub CP}, which is consistent with the present experimental data. On the other hand, in the framework of parton coalescence, the mass dependence disappears and the strangeness plays an important role in hadron production.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5];  [6];  [7];  [8]
  1. Department of Physics, Nanjing University, Nanjing 210008 (China)
  2. (United States)
  3. (China)
  4. Shanghai Institute of Applied Physics, CAS, Shanghai, 201800 (China)
  5. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  6. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  7. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang, 550001 (China)
  8. Department of Engineering Physics, Tsinghua University, Beijing 100084 (China)
Publication Date:
OSTI Identifier:
21596723
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.84.031901; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BNL; BROOKHAVEN RHIC; COALESCENCE; COLLISIONS; DEUTERON REACTIONS; FINAL-STATE INTERACTIONS; FRAGMENTATION; GOLD; HADRONS; MASS; PARTICLE PRODUCTION; RESCATTERING; STRANGENESS; TRANSPORT THEORY; TRANSVERSE MOMENTUM; ACCELERATORS; CHARGED-PARTICLE REACTIONS; ELEMENTARY PARTICLES; ELEMENTS; HEAVY ION ACCELERATORS; INTERACTIONS; LINEAR MOMENTUM; METALS; NATIONAL ORGANIZATIONS; NUCLEAR REACTIONS; PARTICLE PROPERTIES; SCATTERING; STORAGE RINGS; TRANSITION ELEMENTS; US AEC; US DOE; US ERDA; US ORGANIZATIONS

Citation Formats

Zhang Xiaoping, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Engineering Physics, Tsinghua University, Beijing 100084, Chen Jinhui, Ren Zhongzhou, Xu, N., Xu Zhangbu, Zheng Qiang, and Zhu Xianglei. Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider. United States: N. p., 2011. Web. doi:10.1103/PHYSREVC.84.031901.
Zhang Xiaoping, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Engineering Physics, Tsinghua University, Beijing 100084, Chen Jinhui, Ren Zhongzhou, Xu, N., Xu Zhangbu, Zheng Qiang, & Zhu Xianglei. Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider. United States. doi:10.1103/PHYSREVC.84.031901.
Zhang Xiaoping, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Engineering Physics, Tsinghua University, Beijing 100084, Chen Jinhui, Ren Zhongzhou, Xu, N., Xu Zhangbu, Zheng Qiang, and Zhu Xianglei. Thu . "Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider". United States. doi:10.1103/PHYSREVC.84.031901.
@article{osti_21596723,
title = {Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider},
author = {Zhang Xiaoping and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Department of Engineering Physics, Tsinghua University, Beijing 100084 and Chen Jinhui and Ren Zhongzhou and Xu, N. and Xu Zhangbu and Zheng Qiang and Zhu Xianglei},
abstractNote = {We show that particle species dependence of enhanced hadron production at intermediate transverse momentum (p{sub T}) for d+Au collisions at RHIC can be understood in terms of the hadronization from string fragmentation and the subsequent hadronic rescatterings in the final state. A multiphase transport model (AMPT) with two different hadronization mechanisms, string fragmentation or parton coalescence, is used in our study. When the hadrons are formed from string fragmentation, the subsequent hadronic rescatterings will result in particle mass dependence of the nuclear modification factor R{sub CP}, which is consistent with the present experimental data. On the other hand, in the framework of parton coalescence, the mass dependence disappears and the strangeness plays an important role in hadron production.},
doi = {10.1103/PHYSREVC.84.031901},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}