The influence of initial state fluctuations on heavy quark energy loss in relativistic heavy-ion collisions

Cao, Shanshan; Huang, Yajing; Qin, Guang-You; Bass, Steffen A.

doi:10.1088/0954-3899/42/12/125104

Cited by 28 publications

(41 citation statements)

References 69 publications

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“…In addition, charm quarks lose significantly more energy than beauty quarks in both elastic and inelastic processes because of the mass effect. These results are consistent with our previous calculations based on a Langevin transport framework [54,64]. We have noted that the relative contribution of elastic vs. inelastic scattering to heavy quark energy loss may depend on the kinematic cut-off one implements.…”

Section: Elastic Versus Inelastic Energy Losssupporting

confidence: 93%

“…We include the inelastic scattering process in our current LBT model by following our earlier work [26,53,54].…”

Section: B Medium-induced Gluon Radiationmentioning

confidence: 99%

“…We have noted that the relative contribution of elastic vs. inelastic scattering to heavy quark energy loss may depend on the kinematic cut-off one implements. However, to better distinguish between the contribution from the two mechanisms and place more constraints on our theoretical model, new observables beyond current measurement -such as two particle correlation functions related to heavy mesons [65] -should be investigated. This will be explored in a follow-up study.…”

Section: Elastic Versus Inelastic Energy Lossmentioning

confidence: 99%

“…Various transport models have been constructed to study the heavy flavor production and medium modification in heavy-ion collisions, such as the parton cascade models based on the Boltzmann equation [40][41][42][43], the linearized Boltzmann [44,45] and Langevin [46][47][48][49][50][51][52][53][54] approaches coupled to hydrodynamic background, and the parton-hadron-string-dynamics model [55]. In this work, we extend the Linearized Boltzmann Transport (LBT) model [26,56] to include both light and heavy flavor parton evolution in relativistic heavy-ion collisions.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

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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 LHC and RHIC. The prediction for the Pb-Pb collisions at √ sNN=5.02 TeV is provided.

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Section: Elastic Versus Inelastic Energy Losssupporting

confidence: 93%

“…We include the inelastic scattering process in our current LBT model by following our earlier work [26,53,54].…”

Section: B Medium-induced Gluon Radiationmentioning

confidence: 99%

Section: Elastic Versus Inelastic Energy Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2016

Self Cite

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“…And therefore, the probability of elastic scattering of parton "1" in each time step ∆t is P el = Γ el ∆t. For inelastic scattering, or medium-induced gluon radiation, the average number of emitted gluons from a hard parton in each time step ∆t is evaluated as [32,52,53] …”

Section: Lbtmentioning

confidence: 99%

Multistage Monte Carlo simulation of jet modification in a static medium

Cao¹,

Park²,

Barbieri³

et al. 2017

Phys. Rev. C

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The modification of hard jets in an extended static medium held at a fixed temperature is studied using three different Monte-Carlo event generators (LBT, MATTER, MARTINI). Each event generator contains a different set of assumptions regarding the energy and virtuality of the partons within a jet versus the energy scale of the medium, and hence, applies to a different epoch in the space-time history of the jet evolution. For the first time, modeling is developed where a jet may sequentially transition from one generator to the next, on a parton-by-parton level, providing a detailed simulation of the space-time evolution of medium modified jets over a much broader dynamic range than has been attempted previously in a single calculation. Comparisons are carried out for different observables sensitive to jet quenching, including the parton fragmentation function and the azimuthal distribution of jet energy around the jet axis. The effect of varying the boundary between different generators is studied and a theoretically motivated criterion for the location of this boundary is proposed. The importance of such an approach with coupled generators to the modeling of jet quenching is discussed.

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Study of Quarkonium in QGP from Unquenched Lattice QCD

Ali¹,

Bala²,

Kaczmarek³

et al. 2023

Few-Body Syst

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This paper discusses the charmonium and bottomonium correlators in the pseudoscalar channel and the corresponding spectral reconstruction on the lattice. The absence of a transport peak in the pseudoscalar channel spectral function allows for an easier study of the in-medium modification of bound states. However, extracting spectral information from Euclidean correlators is still a numerically ill-posed problem. To constrain the spectral reconstruction, we use an ansatz motivated from perturbation theory. The perturbative model spectral function has two main contributions: a thermal part around the threshold obtained from pNRQCD and the vacuum part well above the threshold. These two regions are matched continuously, and the model spectral function is obtained by introducing parameters that control the overall thermal shift of the peak and the overall amplitude. The lattice correlator data is computed using clover-improved Wilson valence fermions on large and fine gauge field configurations generated using $$N_f=2+1$$ N f = 2 + 1 flavors Highly Improved Staggered Quark action with physical strange quark mass $$m_s$$ m s , and slightly heavy degenerate up and down quark masses $$m_l=m_s/5$$ m l = m s / 5 that correspond to $$m_\pi \simeq 320$$ m π ≃ 320 MeV. Our results obtained at $$T=220$$ T = 220 MeV and $$T=251$$ T = 251 MeV suggest that no resonance peaks are needed to describe the charmonium lattice data at these temperatures, while for bottomonium thermally broadened resonance peaks persists.

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The influence of initial state fluctuations on heavy quark energy loss in relativistic heavy-ion collisions

Cited by 28 publications

References 69 publications

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

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

Multistage Monte Carlo simulation of jet modification in a static medium

Study of Quarkonium in QGP from Unquenched Lattice QCD

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