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

被引：0
作者：
Dai, Wei [1 ,2 ]
Chen, Xiao-Fang [3 ]
Zhang, Ben-Wei [1 ,2 ]
Zhang, Han-Zhong [1 ,2 ]
Wang, Enke [1 ,2 ]
机构：
[1] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China
[2] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China
[3] Jiangsu Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 08期
关键词：
MULTIPLE PARTON SCATTERING; ENERGY-LOSS; COLLISIONS;
D O I：
10.1140/epjc/s10052-017-5136-7
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate phi 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 LOandNLOwith theQCD-improved partonmodel. We have included the parton energy loss effect in a hot/dense QCD medium with the effectively medium-modified phi fragmentation functions in the higher-twist approach of jet quenching. The nuclear modification factors of the f meson in central Au + Au collisions at the RHIC and central Pb + Pb collisions at the LHC are provided, and nice agreement of our numerical results at NLO with the ALICE measurement is observed. Predictions of the yield ratios of neutral mesons such as phi/pi(0), phi/eta and phi/rho(0) at large p(T) in relativistic heavyion collisions are also presented for the first time.
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页数：8
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