Impact of momentum anisotropy and turbulent chromo-fields on thermal particle production in quark–gluon-plasma medium

Chandra, Vinod; Sreekanth, V.

doi:10.1140/epjc/s10052-017-4992-5

Cited by 11 publications

(19 citation statements)

References 127 publications

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“…The form of ∆( p) have been computed only by considering the effects of turbulent color fields (Vlasov term only) in Ref. [38]. The current focus is to incorporate the collisional aspects along with the anomalous contributions to the momentum distribution functions.…”

Section: Notations and Conventionsmentioning

confidence: 99%

“…Following the same formalism as in Refs. [14,38], one can estimate the algebraic equation of A g,q by taking the appropriate moment of the transport equation. The ensemble average Vlasov-Boltzmann equation takes the form as follows,…”

Section: The Form Of Agqmentioning

confidence: 99%

“…Following this standard method as in Refs. [14,38] leads to the following matrix equation for the column vector A = {A g , A q },…”

Section: The Form Of Agqmentioning

confidence: 99%

“…In Ref. [38], the effect of chromo-Weibel instability in the dilepton production rate has been investigated. It will be an interesting task to study the collisional contributions to thermal dilepton production along with the anomalous corrections.…”

Section: Introductionmentioning

confidence: 99%

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Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields

Chandra,

Kurian,

Naik

et al. 2020

Preprint

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The effects of collisional processes in the hot QCD medium to thermal dilepton production from qq annihilation in relativistic heavy-ion collisions have been investigated. The non-equilibrium corrections to the momentum distribution function have been estimated within the framework of ensemble-averaged diffusive Vlasov-Boltzmann equation, encoding the effects of collisional processes and turbulent chromo-fields in the medium. The analysis has been done by considering the realistic equation of state by employing a quasiparticle model for the thermal QCD medium. The contributions from the 2 → 2 elastic scattering processes have been quantified for the thermal dilepton production rate. We have showed that the collisional corrections induce appreciable enhancement over the equilibrium dilepton spectra. A comparative study between collisional and anomalous contributions to the dilepton production rates has also been explored. The collisional contributions are seen to be marginal over that due to collisionless anomalous transport.

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Section: Notations and Conventionsmentioning

confidence: 99%

Section: The Form Of Agqmentioning

confidence: 99%

“…Following this standard method as in Refs. [14,38] leads to the following matrix equation for the column vector A = {A g , A q },…”

Section: The Form Of Agqmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields

Chandra,

Kurian,

Naik

et al. 2020

Preprint

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“…Notably, the EQPM employed here has been remarkably useful in understanding the bulk and the transport properties of the QGP in heavy-ion collisions [164][165][166][167][168][169][170]. Before, the formalism for estimations of thermal relaxation times of the constituent gluons and quarks are being discussed, it is important to highlight the utility of quasi-particle models in the context of understanding the bulk and transport properties of the hot QCD/QGP medium created out of the heavy-ion collisions.…”

Section: Charge Renormalization and Effective Coupling At Finite T Anmentioning

confidence: 99%

Transport coefficients of a hot QCD medium and their relative significance in heavy-ion collisions

Mitra

Chandra

2017

Phys. Rev. D

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The main focus of this article is to obtain various transport coefficients for a hot QCD medium that is produced while colliding two heavy nuclei ultra-relativistically. As the hot QCD medium follows dissipative hydrodynamics while undergoing space-time evolution, the knowledge of the transport coefficients such as thermal conductivity, electrical conductivity, shear and bulk viscosities are essential to understand the underlying physics there. The approach adopted here is semi-classical transport theory. The determination of all these transport coefficients requires knowledge of the medium away from equilibrium. In this context, we setup the linearized transport equation employing the Chapman-Enskog technique from kinetic theory of many particle system with a collision term that includes the binary collisions of quarks/antiquarks and gluons. In order to include the effects of a strongly interacting, thermal medium, a quasi-particle description of realistic hot QCD equation of state has been employed through the equilibrium modeling of the momentum distributions of gluons and quarks with non-trivial dispersion relations while extending the model for finite but small quark chemical potential. The effective coupling for strong interaction has been redefined following the charge renormalization under the scheme of the quasiparticle model. The consolidated effects on transport coefficients are seen to have significant impact on their temperature dependence. The relative significances of momentum and heat transfer as well as charge diffusion processes in hot QCD have been investigated by studying the ratios of the respective transport coefficients.

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Chromo-turbulent fields and lepton pair production from collisional hot QCD medium

Naik,

Sreekanth,

Kurian

et al. 2024

Proc.Indian Natl. Sci. Acad.

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Impact of momentum anisotropy and turbulent chromo-fields on thermal particle production in quark–gluon-plasma medium

Cited by 11 publications

References 127 publications

Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields

Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields

Transport coefficients of a hot QCD medium and their relative significance in heavy-ion collisions

Chromo-turbulent fields and lepton pair production from collisional hot QCD medium

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