Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution

By S. Cao, T. Luo, G. Qin, Xin-Nian Wang. 2016

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Author(s): Cao, S; Luo, T; Qin, GY; Wang, XN | Abstract: © 2016 American Physical Society. A linearized Boltzmann transport (LBT) model coupled with hydrodynamical background is established to describe the evolution of jet shower partons and medium excitations in high energy heavy-ion collisions. We extend the LBT model to include both elastic and inelastic processes for light and heavy partons in the quark-gluon plasma. A hybrid model of fragmentation and coalescence is developed for the hadronization of heavy quarks. Within this framework, we investigate how heavy flavor observables depend on various ingredients, such as different energy loss and hadronization mechanisms, the momentum and temperature dependences of the transport coefficients, and the radial flow of the expanding fireball. Our model calculations show good descriptions of the D meson suppression and elliptic flow observed at the Larege Hadron Collider and the Relativistic Heavy-Ion Collider. The prediction for the Pb-Pb collisions at sNN=5.02 TeV is provided.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/3fa645491f1d5bdb1114a0505b9febe8143071f9

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Citations in the corpus

Nuclear modification factor of D0 mesons in PbPb collisions at sNN=5.02TeV (2017, methodology): “[43,44]), (c) a microscopic off-shell transport model based on a Boltzmann approach that includes collisional energy loss only (PHSD [45,46]), and (d) a model based on the anti-de Sitter/conformal field theory (AdS/CFT) correspondence, that includes thermal fluctuations in the energy loss for heavy ”
Jet substructure at the Large Hadron Collider: A review of recent advances in theory and machine learning (2017, background): “Recently there has been interest in using observables designed for jet substructure to probe jet evolution in the QGP, with the hope of better understanding the medium [420, 421, 422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439].”
Extraction of heavy-flavor transport coefficients in QCD matter (2018, methodology): “The radiation rate is proportional to αsq̂ where q̂ is based on pQCD elastic scattering [188], with a running coupling constant at scale Q2=2ET for the HQ-gluon vertices and a constant αs=0.”