首页|Hadron productions and jet substructures associated with Z0/γ in Pb+Pb collisions at the LHC
Hadron productions and jet substructures associated with Z0/γ in Pb+Pb collisions at the LHC
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We carry out a detailed study of medium modifications on Z0/γ+hadron correlations as well as jet substructures in association with Z0/γ in Pb+Pb collisions with √SNN=5.02 TeV at the LHC.We utilize the linear Boltzmann transport(LBT)model to simulate the jet-medium interactions and medium response,and an extended cluster hadronization model to investigate the non-perturbative transition of quarks and gluons into final hadrons in heavy-ion collisions.Including hadronization effect,we can well describe Z0/γ+hadrons correlations and Z0/γ-tagged jet substructures in both p+p and Pb+Pb collisions simultaneously.Medium modification on jet profile and jet fragmentation functions indicate that particles carrying a large fraction of the jet momentum are generally closely aligned with the jet axis,whereas low-momentum particles are observed to have a much broader angular distribution relative to jet axis in Pb+Pb collisions due to jet-medium interactions.In particular,we find that Z0/γ-tagged hadron correlations are sensitive to the soft particles from the dense medium and medium response,while jet-substructures show weak dependence on those soft hadrons with only a fraction of them falling inside the jet area.
Key Laboratory of Atomic and Subatomic Structure and Quantum Control(MOE),Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China
Guangdong-Hong Kong Joint Laboratory of Quantum Matter Guangdong Provincial Key Laboratory of Nuclear Science,Southern Nuclear Science Computing Center,South China Normal University,Guangzhou 510006,China
Guangdong-Hong Kong Joint Laboratory of Quantum Matte
Institute of Particle Physics and Key Laboratory of Quarks and Lepton Physics(MOE),Central China Normal University,Wuhan 430079,China
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Guangdong Major Project of Basic and Applied Basic ResearchNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaMOE Key Laboratory of Quark and Lepton Physics(CCNU)
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