Effect of final state interactions on particle production in d+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider
- Department of Physics, Nanjing University, Nanjing 210008 (China)
- Shanghai Institute of Applied Physics, CAS, Shanghai, 201800 (China)
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Brookhaven National Laboratory, Upton, New York 11973 (United States)
- School of Mathematics and Computer Science, Guizhou Normal University, Guiyang, 550001 (China)
- Department of Engineering Physics, Tsinghua University, Beijing 100084 (China)
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.
- OSTI ID:
- 21596723
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 84, Issue 3; Other Information: DOI: 10.1103/PhysRevC.84.031901; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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