Extraction of inclusive photon production at mid-rapidity in p+p and Au+Au collisions at√SNN=200 GeV

• 作者: Sheng-Hui Zhang Rong-Rong Ma Yi-Fei Zhang Xiao-Long Chen Xiu-Jun Li Fan Si Cheng Li Ming Shao Yong-Jie Sun Ze-Bo Tang Wang-Mei Zha
• 来源期刊: 核技术（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH
• 页码范围: 58-65
• 页数: 8页
• 语种: 英文

摘要

We present a comprehensive study on the indi-vidual sources of an inclusive photon production during high-energy hadronic collisions. The cross section and invariant yields of inclusive photons are obtained as a function of pT at mid-rapidity (︳y︳<0.5) in p+p and Au+Au collisions at √SNN = 200 GeV, respectively. These results provide crucial inputs to separate measurements of open bottom and charm hadron yield suppression in heavy-ion collisions, which are used to test the mass hierarchy of the parton energy loss in the quark gluon plasma created during these collisions. The procedure developed in this study can also be applied to other measurements of elec-trons from an open heavy-flavor hadron decay, such as the collective flow in the RHIC beam energy scan program.