Energy loss of leading hadrons and direct photon production in evolving quark-gluon plasma

Turbide, Simon; Gale, Charles; Jeon, Sangyong

doi:10.1103/physrevc.72.014906

Cited by 197 publications

(336 citation statements)

References 64 publications

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“…(1). A medium modified fragmentation function is modelled by the convolution of the vacuum fragmentation functions with the hard parton distributions, at exit, to produce the final hadronic spectrum [25],…”

Section: Finite Temperature Field Theory Approachmentioning

confidence: 99%

A comparative study of jet-quenching schemes

Majumder

2007

J. Phys. G: Nucl. Part. Phys.

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Abstract. The four major approximation schemes devised to study the modification of jets in dense matter are outlined. The comparisons are restricted to basic assumptions and approximations made in each case and the calculation methodology used. Emergent underlying similarities between apparently disparate methods brought about by the approximation schemes are exposed. Parameterizations of the medium in each scheme are discussed in terms of the transport coefficientq. Discrepancies between the estimates obtained from the four schemes are discussed. Recent developments in the basic theory and phenomenology of energy loss are highlighted.

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Section: Finite Temperature Field Theory Approachmentioning

confidence: 99%

A comparative study of jet-quenching schemes

Majumder

2007

J. Phys. G: Nucl. Part. Phys.

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“…So the φ integration can be done analytically as in Ref. [32]. The temperature profile is taken from Ref.…”

Section: Space Time Evolutionmentioning

confidence: 99%

“…The temperature profile is taken from Ref. [32]. Besides the thermal photons from QGP and hadronic matter we also calculate photons from initial hard scattering from the reaction of the type h A h B → γ X using perturbative QCD.…”

Section: Space Time Evolutionmentioning

confidence: 99%

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Effect of running coupling on photons from jet–plasma interaction in relativistic heavy-ion collisions

Bhattacharya¹,

Roy²

2011

J. Phys. G: Nucl. Part. Phys.

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We discuss the role of collisional energy loss on high pT photon data measured by PHENIX collaboration by calculating photon yield in jet-plasma interaction. The phase space distribution of the participating jet is dynamically evolved by solving Fokker-Planck equation. We treat the strong coupling constant (αs) as function of momentum and temperature while calculating the drag and diffusion coefficients. It is observed that the quenching factor is substantially modified as compared to the case when αs is taken as constant. It is shown that the data is reasonably well reproduced when contributions from all the relevant sources are taken into account. Predictions at higher beam energies relevant for LHC experiment have been made.

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“…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%

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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Energy loss of leading hadrons and direct photon production in evolving quark-gluon plasma

Cited by 197 publications

References 64 publications

A comparative study of jet-quenching schemes

A comparative study of jet-quenching schemes

Effect of running coupling on photons from jet–plasma interaction in relativistic heavy-ion collisions

Multistage Monte Carlo simulation of jet modification in a static medium

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