QGP modification to single inclusive jets in a calibrated transport model

被引：0
作者：
Ke W. [1 ,2 ]
Wang X.-N. [2 ,3 ]
机构：
[1] Department of Physics, University of California, Berkeley, 366 LeConte Hall, Berkeley, 94720, CA
[2] Nuclear Science Division, MS 70R0309, Lawrence-Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, 94720, CA
[3] Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan
来源：
Journal of High Energy Physics | / 2021卷 / 5期
基金：
美国国家科学基金会;
关键词：
Heavy Ion Phenomenology; Jets;
D O I：
10.1007/JHEP05(2021)041
中图分类号：
学科分类号：
摘要：
We study inclusive jet suppression and modifications in the quark-gluon plasma (QGP) with a transport-based model. The model includes vacuum-like parton shower evolution at high-virtuality, a linearized transport for jet-medium interactions, and a simple ansatz for the jet-induced hydrodynamic response of the medium. Model parameters are calibrated to nuclear modification factors for inclusive hadron RAAh and single inclusive jets RAAj with cone size R = 0.4 in 0–10% central Au-Au and Pb-Pb collisions measured at the RHIC and LHC. The calibrated model consistently describes the cone-size dependent RAAj(R), modifications to inclusive jet fragmentation functions and jet shape. We discuss the origin of these modifications by analyzing the medium-induced jet energy flow in this model and elucidate the interplay of hard parton evolution and jet-induced medium response. In particular, we demonstrate that the excess of soft hadrons at pT∼ 2 GeV/c in jet fragmentation function and jet shape at large r=Δη2+Δϕ2 are consequences of both soft medium-induced gluon radiation and jet-induced medium excitation. © 2021, The Author(s).
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  • [1] Appel D.A., Jets as a Probe of Quark-Gluon Plasmas, Phys. Rev. D, 33, (1986)
  • [2] Gyulassy M., Plumer M., Jet Quenching in Dense Matter, Phys. Lett. B, 243, (1990)
  • [3] Wang X.-N., Gyulassy M., Gluon shadowing and jet quenching in A + A collisions at s = 200 GeV, Phys. Rev. Lett., 68, (1992)
  • [4] Qin G.-Y., Wang X.-N., Jet quenching in high-energy heavy-ion collisions, Int. J. Mod. Phys. E, 24, (2015)
  • [5] Bass S.A., Gale C., Majumder A., Nonaka C., Qin G.-Y., Renk T., Et al., Systematic Comparison of Jet Energy-Loss Schemes in a realistic hydrodynamic medium, Phys. Rev. C, 79, (2009)
  • [6] Extracting the jet transport coefficient from jet quenching in high-energy heavy-ion collisions, Phys. Rev. C, 90, (2014)
  • [7] Andres C., Armesto N., Luzum M., Salgado C.A., Zurita P., Energy versus centrality dependence of the jet quenching parameter q̂ at RHIC and LHC: a new puzzle?, Eur. Phys. J. C, 76, (2016)
  • [8] Xu Y., Bernhard J.E., Bass S.A., Nahrgang M., Cao S., Data-driven analysis for the temperature and momentum dependence of the heavy-quark diffusion coefficient in relativistic heavy-ion collisions, Phys. Rev. C, 97, (2018)
  • [9] Xie M., Wei S.-Y., Qin G.-Y., Zhang H.-Z., Extracting jet transport coefficient via single hadron and dihadron productions in high-energy heavy-ion collisions, Eur. Phys. J. C, 79, (2019)
  • [10] Connors M., Nattrass C., Reed R., Salur S., Jet measurements in heavy ion physics, Rev. Mod. Phys., 90, (2018)
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