Gluon bremsstrahlung by heavy quarks - its effects on transport coefficients and equilibrium distribution

Jan-e Alam; Surasree Mazumder; Trambak Bhattacharyya

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Gluon bremsstrahlung by heavy quarks - its effects on transport coefficients and equilibrium distribution

Surasree Mazumder, Trambak Bhattacharyya, Jan-e Alam

Nuclear Theory · Submitted 28 May 2013

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We found that while the soft gluon radiation has substantial effects on the transport coefficients of the charm quarks in the quark gluon plasma its effects on the equilibrium distribution function is insignificant.

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arXiv ID1305.6445 (version 1)

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CitationJan-e Alam, Surasree Mazumder, Trambak Bhattacharyya. "Gluon bremsstrahlung by heavy quarks - its effects on transport coefficients and equilibrium distribution." arXiv:1305.6445 (2013). https://pith.science/paper/KV6BGN5X

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.35 · human participants 0.01 · controlled comparison 0.23 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.14 · mentions code or data availability 0.01.

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The effects of gluon radiation by charm quarks on the transport coefficients {\it e.g.} drag, longitudinal and transverse diffusion and shear viscosity have been studied within the ambit of perturbative quantum chromodynamics (pQCD) and kinetic theory. We found that while the soft gluon radiation has substantial effects on the transport coefficients of the charm quarks in the quark gluon plasma its effects on the equilibrium distribution function is insignificant.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	The effects of gluon radiation by charm quarks on the transport coefficients {\it e.g.} drag, longitudinal and transverse diffusion and shear viscosity have been studied within the ambit of perturbative quantum chromodynamics (pQCD) and kinetic theory.	contribution 0.96	0.80	0.07	asserted 0.97
s1	We found that while the soft gluon radiation has substantial effects on the transport coefficients of the charm quarks in the quark gluon plasma its effects on the equilibrium distribution function is insignificant.	result 1.00	0.96	0.88	asserted 1.00

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Original abstract

The effects of gluon radiation by charm quarks on the transport coefficients {\it e.g.} drag, longitudinal and transverse diffusion and shear viscosity have been studied within the ambit of perturbative quantum chromodynamics (pQCD) and kinetic theory. We found that while the soft gluon radiation has substantial effects on the transport coefficients of the charm quarks in the quark gluon plasma its effects on the equilibrium distribution function is insignificant.

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11 arXiv papers cite this in 18 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

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The general expression for the thermal averaged $F(p)$ for $2→3$ process is as follows [ref] , [equation] The theta function $θ_1(E_p-E_k')$ constraints the phase space where heavy quark initial state energy $E_p$ is always greater than the radiated soft gluon energy $E_k'$ in the final state and $θ_2(τ-τ_F)$ ensures that the collision time $τ$ of the heavy quark with the medium particles is greater than the gluon formation time $τ_F$ (Landau-Pomeranchuk-Migdal Effect) [ref] .

Heavy quark transport coefficients in a viscous QCD medium with collisional and radiative processes · Radiative process · 0.83
This has been taken care of in a gross way through the theta function ,$Θ_1(τ-τ_F)$, as done in Ref. [ref] .

Heavy quark radiation in an anisotropic hot QCD medium · Radiative processes · 0.98
We use the fluctuation-dissipation theorem to determine the momentum diffusion in the analysis [ref] .

Energy loss of a fast moving parton in Gribov-Zwanziger plasma · Results and discussions · 0.98

Cites it as background 4 papers

The pQCD inspired models include either elastic [ref] or radiative [ref] processes or both [ref] .

Elastic and radiative heavy quark interactions in ultra-relativistic heavy-ion collisions · Introduction · 0.98
The impact of soft gluon radiation by the heavy quark on its transport coefficients in the thermalized QGP medium has been recently explored in Refs. [ref] .

Heavy quark transport coefficients in a viscous QCD medium with collisional and radiative processes · Introduction · 0.84
The drag and diffusion coefficients of heavy quarks in the non-interacting QGP (the medium described by an ultra-relativistic gas of quarks/antiquarks and gluons (ideal EOS)) has been initially studied by including collisional interactions [ref] and later with the radiative process in the medium [ref] .

Heavy quark transport in an anisotropic hot QCD medium: Collisional and Radiative processes · Heavy quark radiative and collisional process in the anisotropic medium · 0.87

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