Abstract
Within the framework of a multiphase transport model (AMPT), the -meson production is studied in collisions at GeV in the forward (-going, ) and backward (Au-going, ) directions. The AMPT model with string melting version (parton cascade turning on) describes the experimental data well, while the pure hadronic transport scenario of the AMPT model underestimates the -meson production rate in comparison with the data. Detailed investigations including the rapidity, transverse momentum, and collision system size dependencies of -meson nuclear modification factor indicate that a combination of the initial-state effect and a follow-up parton cascade is required in the AMPT model to describe the data. Similar calculations are also present in collisions at TeV and collisions at TeV. The findings from a comparison of AMPT model study with the data are consistent with that at RHIC energy.
- Received 17 November 2015
- Revised 30 January 2016
DOI:https://doi.org/10.1103/PhysRevC.93.044904
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