Collisional parton energy loss in a finite size QCD medium revisited: Off mass-shell effects

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dc.creatorAyala, Alejandro
dc.creatorMagnin, J.
dc.creatorMontano, Luis Manuel
dc.creatorRojas, Eduardo
dc.date2007-06-15
dc.date2008-03-25
dc.date.accessioned2026-07-07T11:16:55Z
dc.date.available2026-07-07T11:16:55Z
dc.descriptionWe study the collisional energy loss mechanism for particles produced off mass-shell in a finite size QCD medium. The off mass-shell effects introduced are to consider particles produced in wave packets instead of plane waves and the length scale associated to an in-medium particles' life-time. We show that these effects reduce the energy loss as compared to the case when the particles are described as freely propagating from the source. The reduction of the energy loss is stronger as this scale becomes of the order or smaller than the medium size. We discuss possible consequences of the result on the description of the energy loss process in the parton recombination scenario.
dc.description9 pages, 4 figures. Enlarged discussion. References added. Version to appear in Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/0706.2377
dc.identifierhttp://arxiv.org/abs/0706.2377
dc.identifierPhys.Rev.C77:044904,2008
dc.identifierdoi:10.1103/PhysRevC.77.044904
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192835
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCollisional parton energy loss in a finite size QCD medium revisited: Off mass-shell effects
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