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arXiv · 1604.04336

$ϕ$-meson production at forward/backward rapidity in high-energy nuclear collisions from a multiphase transport model

Y. J. Ye·J. H. Chen·Y. G. Ma·S. Zhang·C. Zhong
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Abstract

Within the framework of a multiphase transport model (AMPT), the $ϕ$-meson production is studied in d+Au collisions at \srt = {200} GeV in the forward (d-going, $1.2<y<2.2$) and backward (Au-going, $-2.2<y<-1.2$) direction. 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 $ϕ$-meson production rate in comparison with the data. Detailed investigations including the rapidity, transverse momentum and collision system size dependencies of $ϕ$-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 p+Pb collisions at \srt = {5.02} TeV and p+p collisions at \srt = {2.76} TeV. The findings from a comparison of AMPT model study with the data are consistent with that at RHIC energy.

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Y. J. Ye, J. H. Chen, Y. G. Ma, S. Zhang, C. Zhong. 2016-04-15. $ϕ$-meson production at forward/backward rapidity in high-energy nuclear collisions from a multiphase transport model. https://doi.org/10.1103/physrevc.93.044904

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