Jet-medium interactions at NLO in a weakly-coupled quark-gluon plasma

Ghiglieri, Jacopo; Moore, Guy D.; Teaney, Derek

doi:10.1007/jhep03(2016)095

Cited by 86 publications

(161 citation statements)

References 119 publications

(308 reference statements)

Supporting

Mentioning

158

Contrasting

Order By: Relevance

“…In previous implementations, C [ f ] would be divided into an elastic and an inelastic term. In the leading order reformulation [3], the collision kernel is divided into (i) hard elastic and inelastic interactions, (ii) diffusion, and (iii) conversion processes.…”

Section: Description Of the Reformulated Modelmentioning

confidence: 99%

See 1 more Smart Citation

Parton energy loss in the reformulated weakly-coupled kinetic approach

Dai¹,

Bass²,

Paquet³

et al. 2019

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

Self Cite

View full text Add to dashboard Cite

Interactions between hard partons and the quark-gluon plasma range from frequent soft interactions to rare hard scatterings. The larger number of soft interactions makes possible an effective stochastic description of parton-plasma interactions in terms of drag and diffusion transport coefficients. In this work, we present a numerical implementation that builds upon this systematic division between soft and hard parton-plasma interactions. We study the dependence of the single parton distribution on the cutoff between soft and hard parton-plasma interactions, both for small and phenomenological values of the strong coupling constant.

show abstract

Section: Description Of the Reformulated Modelmentioning

confidence: 99%

“…[3], it was shown that the parton energy loss can be equivalently reformulated in terms of hard large-angle interactions and soft small-angle collisions. A major advantage of this reformulated approach is that it could be extended to next-to-leading order [4,3]. There are nevertheless important benefits at leading order as well.…”

Section: Introductionmentioning

confidence: 99%

Parton energy loss in the reformulated weakly-coupled kinetic approach

Dai¹,

Bass²,

Paquet³

et al. 2019

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…The basic premise behind the Fokker-Planck equation is that the number density of the hard particles (integrated over momenta p T of the phase space distribution) is conserved. However, in QCD there are processes already at leading order in α s , which violate the Fokker-Planck equation [77], e.g. a collinear splitting Q → Qg where both the quark and the gluon carry a large p T ("p T /2"), or a scattering of Q with a hard medium gluon whereby its momentum is changed by a large amount.…”

Section: High-p T Jetsmentioning

confidence: 99%

“…The value ofq L remains to be determined. The un-integrated C(k ⊥ ) may also parametrize a subset of non-Fokker Planck processes [77].…”

Section: High-p T Jetsmentioning

confidence: 99%

Heavy-flavor production and medium properties in high-energy nuclear collisions --What next?

et al. 2017

View full text Add to dashboard Cite

Abstract. Open and hidden heavy-flavor physics in high-energy nuclear collisions are entering a new and exciting stage towards reaching a clearer understanding of the new experimental results with the possibility to link them directly to the advancement in lattice Quantum Chromo-Dynamics (QCD). Recent results from experiments and theoretical developments regarding open and hidden heavy-flavor dynamics have been debated at the Lorentz Workshop Tomography of the Quark-Gluon Plasma with Heavy Quarks, which was held in October 2016 in Leiden, The Netherlands. In this contribution, we summarize identified common understandings and developed strategies for the upcoming five years, which aim at achieving a profound knowledge of the dynamical properties of the quark-gluon plasma.

show abstract

“…The large separation of scales, related in turn to the medium length and the mean free path, can also potentially lead to significant radiative corrections to transverse momentum broadening and energy loss in the medium [50][51][52] and, in general, to medium transport coefficients [51,53]. See also [54,55] for related work in next-to-leading order corrections to the medium-induced spectrum. The emission spectrum of two gluons with comparable formation times was analysed for the case of a dense medium in [56].…”

Section: Jhep11(2016)174mentioning

confidence: 99%

Two-gluon emission and interference in a thin QCD medium: insights into jet formation

Casalderrey-Solana

Pablos

Tywoniuk

2016

J. High Energ. Phys.

View full text Add to dashboard Cite

In heavy-ion collisions, an abundant production of high-energy QCD jets allows to study how these multiparticle sprays are modified as they pass through the quark-gluon plasma. In order to shed new light on this process, we compute the inclusive two-gluon rate off a hard quark propagating through a color deconfined medium at first order in medium opacity. We explicitly impose an energy ordering of the two emitted gluons, such that the "hard" gluon can be thought of as belonging to the jet substructure while the other is a "soft" emission (which can be collinear or medium-induced). Our analysis focusses on two specific limits that clarify the modification of the additional angle-and formation time-ordering of splittings. In one limit, the formation time of the "hard" gluon is short compared to the "soft" gluon formation time, leading to a probabilistic formula for production of and subsequent radiation off a quark-gluon antenna. In the other limit, the ordering of formation is reverted, which automatically leads to the fact that the jet substructure is resolved by the medium. We observe in this case a characteristic delay: the jet radiates as one color current (quark) up to the formation of the "hard" gluon, at which point we observe the onset of radiation of the new color current (gluon). Within our kinematic constraints, our computation supports a picture in which the in-medium jet dynamics are described as a collection of subsequent antennas which are resolved by the medium according to their transverse extent.

show abstract

Jet-medium interactions at NLO in a weakly-coupled quark-gluon plasma

Cited by 86 publications

References 119 publications

Parton energy loss in the reformulated weakly-coupled kinetic approach

Parton energy loss in the reformulated weakly-coupled kinetic approach

Heavy-flavor production and medium properties in high-energy nuclear collisions --What next?

Two-gluon emission and interference in a thin QCD medium: insights into jet formation

Contact Info

Product

Resources

About