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arXiv · 1702.01614

Nuclear suppression of $ϕ$ meson yields with large $p_T$ at the RHIC and the LHC

Wei Dai·Xiao-Fang Chen·Ben-Wei Zhang·Han-Zhong Zhang·Enke Wang
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Abstract

We calculate $ϕ$ meson transverse momentum spectra in p+p collisions as well as their nuclear suppressions in central A+A collisions both at the RHIC and the LHC in LO and NLO with the QCD-improved parton model. We have included the parton energy loss effect in hot/dense QCD medium with the effectively medium-modified $ϕ$ fragmentation functions in the higher-twist approach of jet quenching. The nuclear modification factors of $ϕ$ meson in central Au+Au collisions at the RHIC and central Pb+Pb collisions at the LHC are provided, and a nice agreement of our numerical results at NLO with the ALICE measurement is observed. Predictions of yield ratios of neutral mesons such as $ϕ/π^0$, $ϕ/η$ and $ϕ/ρ^0$ at large $p_T$ in relativistic heavy-ion collisions are also presented for the first time.

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Wei Dai, Xiao-Fang Chen, Ben-Wei Zhang, Han-Zhong Zhang, Enke Wang. 2018-08-02. Nuclear suppression of $ϕ$ meson yields with large $p_T$ at the RHIC and the LHC. https://doi.org/10.1140/epjc%2Fs10052-017-5136-7

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