Thermal Transport and Drag Force in Improved Holographic QCD

We calculate the bulk viscosity, drag force and jet quenching parameter in Improved Holographic QCD. We find that the bulk viscosity rises near the phase transition but does not exceed the shear viscosity. The drag force shows the effects of asymptotic freedom both as a function of velocity and temp...

Descripción completa

Detalles Bibliográficos
Autores principales: Gürsoy, Umut, Kiritsis, Elias, Michalogiorgakis, Georgios, Nitti, Francesco
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: JHEP 2009
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/1183307
_version_ 1780916379602386944
author Gürsoy, Umut
Kiritsis, Elias
Michalogiorgakis, Georgios
Nitti, Francesco
author_facet Gürsoy, Umut
Kiritsis, Elias
Michalogiorgakis, Georgios
Nitti, Francesco
author_sort Gürsoy, Umut
collection CERN
description We calculate the bulk viscosity, drag force and jet quenching parameter in Improved Holographic QCD. We find that the bulk viscosity rises near the phase transition but does not exceed the shear viscosity. The drag force shows the effects of asymptotic freedom both as a function of velocity and temperature. It indicates diffusion times of heavy quarks in rough agreement with data. The jet quenching parameter values computed via the light-like Wilson loop are in the lower range suggested by data.
format info:eu-repo/semantics/article
id cern-1183307
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
publisher JHEP
record_format invenio
spelling cern-11833072019-09-30T06:29:59Z http://cds.cern.ch/record/1183307 eng Gürsoy, Umut Kiritsis, Elias Michalogiorgakis, Georgios Nitti, Francesco Thermal Transport and Drag Force in Improved Holographic QCD Particle Physics - Phenomenology We calculate the bulk viscosity, drag force and jet quenching parameter in Improved Holographic QCD. We find that the bulk viscosity rises near the phase transition but does not exceed the shear viscosity. The drag force shows the effects of asymptotic freedom both as a function of velocity and temperature. It indicates diffusion times of heavy quarks in rough agreement with data. The jet quenching parameter values computed via the light-like Wilson loop are in the lower range suggested by data. info:eu-repo/grantAgreement/EC/FP7/226371 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1183307 JHEP info:doi/10.1088 JHEP, (2009) pp. 056 2009-06-11
spellingShingle Particle Physics - Phenomenology
Gürsoy, Umut
Kiritsis, Elias
Michalogiorgakis, Georgios
Nitti, Francesco
Thermal Transport and Drag Force in Improved Holographic QCD
title Thermal Transport and Drag Force in Improved Holographic QCD
title_full Thermal Transport and Drag Force in Improved Holographic QCD
title_fullStr Thermal Transport and Drag Force in Improved Holographic QCD
title_full_unstemmed Thermal Transport and Drag Force in Improved Holographic QCD
title_short Thermal Transport and Drag Force in Improved Holographic QCD
title_sort thermal transport and drag force in improved holographic qcd
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1183307
http://cds.cern.ch/record/1183307
work_keys_str_mv AT gursoyumut thermaltransportanddragforceinimprovedholographicqcd
AT kiritsiselias thermaltransportanddragforceinimprovedholographicqcd
AT michalogiorgakisgeorgios thermaltransportanddragforceinimprovedholographicqcd
AT nittifrancesco thermaltransportanddragforceinimprovedholographicqcd

Ejemplares similares