Light quark energy loss in strongly coupled<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:math>supersymmetric Yang-Mills plasma

Chesler, Paul M.; Jensen, Kristan; Karch, Andreas; Yaffe, Laurence G.

doi:10.1103/physrevd.79.125015

Cited by 154 publications

(282 citation statements)

References 51 publications

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“…There is a minimum possible initial opening angle, corresponding to the maximum possible x stop for jets with a given initial energy [145] that was computed holographically in refs. [131,137,141] and is given by…”

Section: Jhep03(2017)135mentioning

confidence: 99%

Angular structure of jet quenching within a hybrid strong/weak coupling model

Casalderrey-Solana

Gulhan

Milhano

et al. 2017

J. High Energ. Phys.

123

145

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Within the context of a hybrid strong/weak coupling model of jet quenching, we study the modification of the angular distribution of the energy within jets in heavy ion collisions, as partons within jet showers lose energy and get kicked as they traverse the strongly coupled plasma produced in the collision. To describe the dynamics transverse to the jet axis, we add the effects of transverse momentum broadening into our hybrid construction, introducing a parameter K ≡q/T 3 that governs its magnitude. We show that, because of the quenching of the energy of partons within a jet, even when K = 0 the jets that survive with some specified energy in the final state are narrower than jets with that energy in proton-proton collisions. For this reason, many standard observables are rather insensitive to K. We propose a new differential jet shape ratio observable in which the effects of transverse momentum broadening are apparent. We also analyze the response of the medium to the passage of the jet through it, noting that the momentum

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Section: Jhep03(2017)135mentioning

confidence: 99%

Angular structure of jet quenching within a hybrid strong/weak coupling model

Casalderrey-Solana

Gulhan

Milhano

et al. 2017

J. High Energ. Phys.

123

145

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“…[40][41][42], should give another means of accessing many of the questions we have addressed. And, these analyses find a stopping distance for energetic light quarks that is proportional to E 1/3 , with E the energy of the quark.…”

Section: From Quenching a Beam Of Strongly Coupled Gluons To Jetmentioning

confidence: 99%

“…[42] a very high energy quark that loses, say, half of its energy leaves most of that energy far behind it while a lower energy quark that loses the same amount of energy and comes almost to rest is never well-separated from the energy it has lost. Although described in quite different terms, this is reminiscent of the distinction between the middle and right panels of Fig.…”

Section: From Quenching a Beam Of Strongly Coupled Gluons To Jetmentioning

confidence: 99%

Shining a gluon beam through quark-gluon plasma

Chesler

Rajagopal

2012

Phys. Rev. D

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We compute the energy density radiated by a quark undergoing circular motion in strongly coupled N = 4 supersymmetric Yang-Mills plasma. If it were in vacuum, this quark would radiate a beam of strongly coupled radiation whose angular distribution has been characterized and is very similar to that of synchrotron radiation produced by an electron in circular motion in electrodynamics. Here, we watch this beam of gluons getting quenched by the strongly coupled plasma. We find that a beam of gluons of momenta ∼ q πT is attenuated rapidly, over a distance ∼ q 1/3 (πT ) −4/3 in a plasma with temperature T . As the beam propagates through the plasma at the speed of light, it sheds trailing sound waves with momenta πT . Presumably these sound waves would thermalize in the plasma if they were not hit soon after their production by the next pulse of gluons from the lighthouse-like rotating quark. At larger and larger q, the trailing sound wave becomes less and less prominent. The outward going beam of gluon radiation itself shows no tendency to spread in angle or to shift toward larger wavelengths, even as it is completely attenuated. In this regard, the behavior of the beam of gluons that we analyze is reminiscent of the behavior of jets produced in heavy ion collisions at the LHC that lose a significant fraction of their energy without appreciable change in their angular distribution or their momentum distribution as they plow through the strongly coupled quark-gluon plasma produced in these collisions.

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“…However, for light probes such as light quarks and gluons, they may finally dissipate in the medium. According to [53][54][55][56][57][58][59], the gravity dual of light probes may have various candidates. The maximum stopping distance of the light probes can, nevertheless, be derived from the null geodesic of a massless particle falling in the dual geometry.…”

Section: Jhep03(2014)073mentioning

confidence: 99%

Jet quenching and holographic thermalization with a chemical potential

Cáceres

Kundu

Yang

2014

J. High Energ. Phys.

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Abstract:We investigate jet quenching of virtual gluons and thermalization of a stronglycoupled plasma with a non-zero chemical potential via the gauge/gravity duality. By tracking a charged shell falling in an asymptotic AdS d+1 background for d = 3 and d = 4, which is characterized by the AdS-Reissner-Nordström-Vaidya (AdS-RN-Vaidya) geometry, we extract a thermalization time of the medium with a non-zero chemical potential. In addition, we study the falling string as the holographic dual of a virtual gluon in the AdS-RN-Vaidya spacetime. The stopping distance of the massless particle representing the tip of the falling string in such a spacetime could reveal the jet quenching of an energetic light probe traversing the medium in the presence of a chemical potential. We find that the stopping distance decreases when the chemical potential is increased in both AdS-RN and AdS-RN-Vaidya spacetimes, which correspond to the thermalized and thermalizing media respectively. Moreover, we find that the soft gluon with an energy comparable to the thermalization temperature and chemical potential in the medium travels further in the non-equilibrium plasma. The thermalization time obtained here by tracking a falling charged shell does not exhibit, generically, the same qualitative features as the one obtained studying non-local observables. This indicates that -holographically -the definition of thermalization time is observer dependent and there is no unambiguos definition.

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Light quark energy loss in strongly coupledN=4supersymmetric Yang-Mills plasma

Cited by 154 publications

References 51 publications

Angular structure of jet quenching within a hybrid strong/weak coupling model

Angular structure of jet quenching within a hybrid strong/weak coupling model

Shining a gluon beam through quark-gluon plasma

Jet quenching and holographic thermalization with a chemical potential

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