High<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>p</mml:mi><mml:mrow><mml:mi>T</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>hadrons as probes of the central region of Au-Au collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi>S</mml:mi><mml:mrow><mml:mi mathvariant="italic">NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mm

Renk, Thorsten

doi:10.1103/physrevc.74.024903

Cited by 36 publications

(7 citation statements)

References 31 publications

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“…Radiative energy loss (i.e., the idea that medium-induced radiation predominantly carries away energy from a hard parent parton) has been rather successful in describing not only the hadronic nuclear suppression factor for central collisions, but also the effects of changing medium geometry [7]. Calculations within dynamical evolution models in various formalisms [8][9][10] have improved on this result and show also agreement with measured hard back-to-back correlations [11][12][13] and the measured suppression of protons [14].…”

Section: Introductionmentioning

confidence: 61%

Monte-Carlo model for elastic energy loss in a hydrodynamical background

2010

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We present a computation of elastic energy loss of hard partons traversing the bulk hydrodynamical medium created in ultrarelativistic heavy-ion collisions. The model is based on perturbative QCD (pQCD) cross sections for 2 → 2 processes in which a hard incoming parton is assumed to interact with a thermal parton from the medium. We model the interactions of this type in a Monte-Carlo framework to account properly for exact energy-momentum conservation, noneikonal parton propagation, parton conversion reactions, and the possibility to create additional hard recoiling partons from the medium. For the thermodynamical properties of the medium we use a hydrodynamical evolution model. We do not aim at a full description of high transverse momentum (P T ) observables at this point. Rather, we view the model as a starting point in obtaining a baseline of what to expect under the assumptions that the medium is describable by thermal quasifree partons and that their pQCD interactions with the high-energy partons are independent. Deviations from this baseline then call for a more sophisticated medium description, as well as inclusion of higher-order processes and coherence effects in the pQCD scatterings.

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Section: Introductionmentioning

confidence: 61%

Monte-Carlo model for elastic energy loss in a hydrodynamical background

2010

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“…Jet quenching caused by parton energy loss in dense medium has been proposed as a hard probe of the properties of the quark-gluon plasma (QGP) formed in highenergy heavy-ion collisions [1,2]. The simplest form of jet quenching is the suppression of single inclusive hadron spectra at large transverse momentum, dihadron and γ-hadron correlation in heavy-ion collisions relative to proton-proton collisions [3][4][5][6][7][8][9][10][11][12][13][14][15]. Observation of these jet quenching phenomena among other experimental data on collective phenomena at the Relativistic Heavy-Ion Collider (RHIC) provided the first evidence of the formation of the strongly coupled quark-gluon plasma in highenergy heavy-ion collisions [16,17].…”

Section: Introductionmentioning

confidence: 99%

Interplaying mechanisms behind single inclusive jet suppression in heavy-ion collisions

Cao

Chen

et al. 2019

Phys. Rev. C

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The suppression factor for single inclusive jets in Pb+Pb collisions at the Large Hadron Collider (LHC) has a weak dependence on the transverse momentum pT and remains almost the same at two colliding energies, √ s = 2.76 and 5.02 TeV, though the central rapidity density of bulk hadrons increases by about 20%. This phenomenon is investigated within the Linear Boltzmann Transport (LBT) model, which includes elastic and inelastic processes based on perturbative QCD for both jet shower and recoil medium partons as they propagate through a quark-gluon plasma (QGP). With the dynamic evolution of the QGP given by the 3+1D CLVisc hydrodynamic model with event-byevent fully fluctuating initial conditions, single inclusive jet suppression in Pb+Pb collisions from LBT agrees well with experimental data. The weak √ s and pT -dependence of the jet suppression factor at LHC are found to result directly from the √ s-dependence of the initial jet pT spectra and slow pT -dependence of the jet energy loss. Contributions from jet-induced medium response, influence of radial expansion, both of which depend on jet-cone size, and jet flavor composition all conjoin to give a slow pT -dependence of jet energy loss and the single jet suppression factor RAA, their dependence on √ s and jet-cone size. Single inclusive jet suppression at √ s = 200 GeV is also predicted that actually decreases slightly with pT in the pT < 50 GeV/c range because of the steeper initial jet spectra though the pT -dependence of the jet energy loss is weaker than that at LHC.

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“…It can be referred to as the signal of the Mach cone and its direction and depth vary with the jet path in the expanding QGP medium. The trigger threshold for jets can constrain the jet production point [44,[89][90][91]. Jets with lower energies are produced much more frequently because the production rate is a steeply decreasing function of the jet energy.…”

Section: B Azimuthal Angle Distributionmentioning

confidence: 99%

Interplay between Mach cone and radial expansion and its signal inγ-jet events

Tachibana

Hirano

2016

Phys. Rev. C

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We study the hydrodynamic response to jet quenching in expanding quark-gluon plasma (QGP) and its signal in the resulting particle distribution. The ideal hydrodynamic simulations of the γ-jet events in heavy-ion collisions are performed in a full (3 + 1)-dimensional setup. The jet-induced Mach cone and the radial expansion of the background mutually push and distort each other. As a result, the particle emission is suppressed in the direction in which the radial flow is pushed back by the Mach cone when the jet path is an off-central one. This is the direct signal of hydrodynamic response to the jet and, moreover, includes information about the jet path in the expanding QGP fluid.

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HighpThadrons as probes of the central region of Au-Au collisions atSNN=200

Cited by 36 publications

References 31 publications

Monte-Carlo model for elastic energy loss in a hydrodynamical background

Monte-Carlo model for elastic energy loss in a hydrodynamical background

Interplaying mechanisms behind single inclusive jet suppression in heavy-ion collisions

Interplay between Mach cone and radial expansion and its signal inγ-jet events

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