Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence

The quenching of jets (and high-pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in mul...

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Autor principal: Beraudo, A.
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2012.12.007
http://cds.cern.ch/record/1462898
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author Beraudo, A.
author_facet Beraudo, A.
author_sort Beraudo, A.
collection CERN
description The quenching of jets (and high-pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in multiple gluon emissions and the color-flow pattern in parton branchings. In particular, the modification of color connections among the partons of a shower developing in the presence of a medium is a generic occurrence accompanying parton energy-loss. We show how this effect can leave its fingerprints at the hadronization stage, leading by itself to a softening of hadron spectra and to an enhanced production of soft particles in jet-fragmentation.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-14628982019-09-30T06:29:59Zdoi:10.1016/j.nuclphysa.2012.12.007http://cds.cern.ch/record/1462898engBeraudo, A.Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherenceParticle Physics - PhenomenologyThe quenching of jets (and high-pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in multiple gluon emissions and the color-flow pattern in parton branchings. In particular, the modification of color connections among the partons of a shower developing in the presence of a medium is a generic occurrence accompanying parton energy-loss. We show how this effect can leave its fingerprints at the hadronization stage, leading by itself to a softening of hadron spectra and to an enhanced production of soft particles in jet-fragmentation.The quenching of jets (and high-pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in multiple gluon emissions and the color-flow pattern in parton branchings. In particular, the modification of color connections among the partons of a shower developing in the presence of a medium is a generic occurrence accompanying parton energy-loss. We show how this effect can leave its fingerprints at the hadronization stage, leading by itself to a softening of hadron spectra and to an enhanced production of soft particles in jet-fragmentation.The quenching of jets (and high-p_T particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in multiple gluon emissions and the color-flow pattern in parton branchings. In particular, the modification of color connections among the partons of a shower developing in the presence of a medium is a generic occurrence accompanying parton energy-loss. We show how this effect can leave its fingerprints at the hadronization stage, leading by itself to a softening of hadron spectra and to an enhanced production of soft particles in jet-fragmentation.The quenching of jets (and high- pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling important qualitative features of QCD, like the correlations in multiple gluon emissions and the color-flow pattern in parton branchings. In particular, the modification of color connections among the partons of a shower developing in the presence of a medium is a generic occurrence accompanying parton energy-loss. We show how this effect can leave its fingerprints at the hadronization stage, leading by itself to a softening of hadron spectra and to an enhanced production of soft particles in jet-fragmentation.arXiv:1207.4294oai:cds.cern.ch:14628982012-07-19
spellingShingle Particle Physics - Phenomenology
Beraudo, A.
Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title_full Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title_fullStr Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title_full_unstemmed Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title_short Perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
title_sort perturbative versus non-perturbative aspects of jet quenching: in-medium breaking of color coherence
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysa.2012.12.007
http://cds.cern.ch/record/1462898
work_keys_str_mv AT beraudoa perturbativeversusnonperturbativeaspectsofjetquenchinginmediumbreakingofcolorcoherence

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