Discrimination of Effective Radiative and Collisional In-medium Energy-loss Models by Their Effects on Angular Jet Structure

Rohrmoser, Martin; Gossiaux, Pol Bernard; Gousset, Thierry; Aichelin, J.

doi:10.5506/aphyspolb.49.1325

Cited by 5 publications

(7 citation statements)

References 5 publications

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“…Each initial hard parton leads to a development of a time-like parton cascade, due to collinear parton splitting caused by bremsstrahlung. The evolution of the parton cascade is performed with a Monte Carlo algorithm [4] representing the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equation with leading order q → qg, g → gg and g → q q splitting functions. The evolution of each parton cascade proceeds from an initial virtuality scale Q ↑ given by the EPOS initial state down to a minimal virtuality scale of Q ↓ = 0.6 GeV.…”

Section: Modelmentioning

confidence: 99%

“…However, it is becoming more understood now [3] that a precise modeling of the background medium evolution is an important component for quantitative description of jet structure in heavy ion collisions. In this report take a first look on the jet structure from a time-like parton cascade [4] coupled with the EPOS3-HQ framework [5]. In particular we show how the transverse expansion of the medium affects the jet structure, and explore the back reaction of the jet to the medium.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Jet structure in integrated EPOS3-HQ approach

Karpenko¹,

Rohrmoser²,

Gossiaux³

et al. 2019

Proceedings of International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions — PoS(HardProbes20

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We report on the first results for jet observables from a time-like parton cascade integrated with hydrodynamic evolution within the EPOS3-HQ framework. The hard (jet) partons are produced along with soft partons in the initial state EPOS approach. The soft partons, represented by strings, melt into a thermalized medium which is described by a 3 dimensional event-by-event viscous hydrodynamic approach. The jet partons then propagate in the hydrodynamically expanding medium. The total jet energy gets progressively "degraded" when the partons reaching a thermal energy scale are melted into the hydrodynamic medium via the source terms. The full evolution proceeds in a parallel mode, without separating the thermalized and jet parts. We demonstrate how the transverse expansion of the medium affects the jet structure, and how the medium itself is affected by the jet recoil.

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Section: Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Jet structure in integrated EPOS3-HQ approach

Karpenko¹,

Rohrmoser²,

Gossiaux³

et al. 2019

Proceedings of International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions — PoS(HardProbes20

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“…[59,63]. In the present investigation, we focus our attention to the collisional energy loss of HQ in the background of a constant magnetic field which may be relevant for the HICs as discussed in literature [63][64][65][66][67].…”

Section: Jhep05(2020)068mentioning

confidence: 99%

HQ collisional energy loss in a magnetized medium

Singh

Mazumder

Mishra

2020

J. High Energ. Phys.

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We study the effect of the magnetic field on the collisional energy loss of heavy quark (HQ) moving in a magnetized thermal partonic medium. This is investigated in the strong field approximation where the lowest Landau level (LLL) becomes relevant. We work in the limit g √ eB T √ eB which is relevant for heavy ion collisions. Effects of the magnetic field are incorporated through the resummed gluon propagator in which the dominant contribution arises from the quark loop. We also take the approximation √ eB M , M being the HQ mass, so that the HQ is not Landau quantized. It turns out that there are only two types of scatterings that contribute to the energy loss of HQ; the Coulomb scattering of HQ with light quarks/anti-quarks and the t-channel Compton scattering. It is observed that for a given magnetic field, the dominant contribution to the collisional energy loss arises from Compton scattering process i.e., Qg → Qg. On the other hand, of the two processes, the Coulomb scattering i.e., Qq → Qq is more sensitive to the magnetic field. The net collisional energy loss is seen to increase with increase in the magnetic field. For a reasonable strength of the magnetic field, the field dependent contribution to the collisional energy loss is of the same order as to the case without magnetic field which can be important for the jet quenching phenomena in the heavy ion collision experiments.

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“…Each initial hard parton leads to the development of a time-like parton cascade, due to collinear parton splitting caused by bremsstrahlung. The evolution of the parton cascade is performed with a Monte Carlo algorithm [3] representing the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equation with leading order q → qg, g → gg and g → q q splitting functions. The evolution of each parton cascade proceeds from an initial virtuality scale Q ↑ , which we set to be equal to parton's p ⊥ , down to a minimal virtuality scale of Q ↓ = 0.6 GeV.…”

Section: Modelmentioning

confidence: 99%

Jet-Fluid Interaction in the EPOS3-Jet Framework

Karpenko

Aichelin

Gossiaux

et al. 2020

Springer Proceedings in Physics

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EPOS3-Jet is an integrated framework for jet modeling in heavy ion collisions, where the initial hard (jet) partons are produced along with soft (medium) partons in the initial state EPOS approach. The jet partons then propagate in the hydrodynamically expanding medium. The energy and momentum lost by the jet partons is added to the hydrodynamic medium via the source terms. The full evolution proceeds in a concurrent mode, without separating hydrodynamic and jet parts. In this report we examine the medium recoil effects in Pb-Pb collisions at √ sNN = 2.76 TeV LHC energy in the EPOS3-Jet framework.

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Discrimination of Effective Radiative and Collisional In-medium Energy-loss Models by Their Effects on Angular Jet Structure

Cited by 5 publications

References 5 publications

Jet structure in integrated EPOS3-HQ approach

Jet structure in integrated EPOS3-HQ approach

HQ collisional energy loss in a magnetized medium

Jet-Fluid Interaction in the EPOS3-Jet Framework

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