Radiative energy loss and p⊥-broadening of high energy partons in nuclei

Baier, Rudolf; Dokshitzer, Yuri L.; Mueller, Alfred H.; Peigné, Stéphane; Schiff, D.

doi:10.1016/s0550-3213(96)00581-0

Cited by 1,241 publications

(1,723 citation statements)

References 13 publications

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“…The quenching of light quarks is well understood as an effect of radiative energy loss when propagating through the medium [5,6]. However, in the case of heavy quarks pure radiative energy loss seems not sufficient to explain experimental data (mainly from electron yields) on heavy flavor quenching [7,8,9,10], suggesting surprisingly strong attenuation.…”

Section: Introductionmentioning

confidence: 99%

Collisional energy loss of heavy quarks

et al. 2013

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We develop a transport approach for heavy quarks in a quark-gluon plasma, which is based on improved binary collision rates taking into account quantum statistics, the running of the QCD coupling and an effective screening mass adjusted to hard-thermal loop calculations. We quantify the effects of in-medium collisions by calculating the heavy flavor nuclear modification factor and the elliptic flow for RHIC energies, which are comparable to radiative effects. We also derive an analytic formula for the mean collisional energy loss of an energetic heavy quark in a streaming quark gluon plasma.

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Section: Introductionmentioning

confidence: 99%

Collisional energy loss of heavy quarks

et al. 2013

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“…In the end, results for the dynamical Q 0 scenario is close to the fixed Q 0 = 2 GeV scenario, because for a 50 GeV quark jet in a 250 MeV medium, the value of dynamical Q 0 we construct is around 2 GeV according to Eqs. (10,11). If the energy of the initial quark is increased by a factor of 4, one may observe in Fig.…”

Section: Energy Distribution and Jet Broadening In Matter+martinmentioning

confidence: 91%

“…Jet modification [7][8][9][10][11][12][13][14][15][16][17], and its associated transport coefficients [18][19][20] provide multi-scale hard probes of the QGP. Jets start with an off-shellness or virtuality Q 2 that * Corresponding Authors is typically of the order of the hard scale, orders of magnitude higher than any scale in the medium.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in the domain of high energy and high virtuality Q 2 ≫ √q E, one expects to apply the medium modified DokshitzerGribov-Lipatov-Altarelli-Parisi (DGLAP) evolution [22,23] based on the higher-twist formalism [24,25]. As the virtuality approaches the medium induced scale, one expects to simulate a rate equation [26][27][28] based on the BDMPS/AMY [10,11,29,30] formalisms or a derivative of the higher twist formalism [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Multistage Monte Carlo simulation of jet modification in a static medium

Cao¹,

Park²,

Barbieri³

et al. 2017

Phys. Rev. C

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The modification of hard jets in an extended static medium held at a fixed temperature is studied using three different Monte-Carlo event generators (LBT, MATTER, MARTINI). Each event generator contains a different set of assumptions regarding the energy and virtuality of the partons within a jet versus the energy scale of the medium, and hence, applies to a different epoch in the space-time history of the jet evolution. For the first time, modeling is developed where a jet may sequentially transition from one generator to the next, on a parton-by-parton level, providing a detailed simulation of the space-time evolution of medium modified jets over a much broader dynamic range than has been attempted previously in a single calculation. Comparisons are carried out for different observables sensitive to jet quenching, including the parton fragmentation function and the azimuthal distribution of jet energy around the jet axis. The effect of varying the boundary between different generators is studied and a theoretically motivated criterion for the location of this boundary is proposed. The importance of such an approach with coupled generators to the modeling of jet quenching is discussed.

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“…All samples used in this work were generated for central (0-10% most central) PbPb collisions at √ s N N = 2.76 TeV. Q-Pythia is a modification of Pythia 6.4 [47] where the splitting probability in the final state parton shower is enhanced by an additional term that follows the BDMPS-Z radiation spectrum [48]. The medium is modelled by a single parameter, a local in space and time transport coefficientq that translates the averaged transverse momentum squared q 2 T exchanged between a parton and the medium per mean free path λ in that medium, such thatq = q 2 T /λ.…”

Section: Modelsmentioning

confidence: 99%

Novel subjet observables for jet quenching in heavy-ion collisions

et al. 2018

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Using a novel observable that relies on the momentum difference of the two most energetic subjets within a jet ΔS 12 we study the internal structure of highenergy jets simulated by several Monte Carlo event generators that implement the partonic energy-loss in a dense partonic medium. Based on inclusive jet and dijet production we demonstrate that ΔS 12 is an effective tool to discriminate between different models of jet modifications over a broad kinematic range. The new quantity, while preserving the collinear and infrared safety of modern jet algorithms, it is experimentally attractive because of its inherent resilience against backgrounds of heavy-ion collisions.

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Radiative energy loss and p⊥-broadening of high energy partons in nuclei

Cited by 1,241 publications

References 13 publications

Collisional energy loss of heavy quarks

Collisional energy loss of heavy quarks

Multistage Monte Carlo simulation of jet modification in a static medium

Novel subjet observables for jet quenching in heavy-ion collisions

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