منابع مشابه
Rethinking the QCD collisional energy loss
It is shown that to leading order the collisional energy loss of an energetic parton in the hot quark gluon plasma reads dE/dx ∼ α(m2D)T , where the scale of the coupling is determined by the (parametrically soft) Debye screening mass. Compared to previous expressions derived by Bjorken and other authors, dE/dx ∼ αT 2 ln(ET/m2D), the rectified result takes into account the running of the coupli...
متن کاملCollisional Energy Loss in a Finite Size QCD Matter
Computation of collisional energy loss in finite size QCD medium has become crucial to obtain reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. We here compute this energy loss up to the zeroth order in opacity. Our approach consistently treats both soft and hard contributions to the collisional energy loss. Consequently, it removes the unphysical energy gain in...
متن کاملMass Hierarchy of Collisional Energy Loss
Collisional parton energy loss is revisited within a simple model assuming incoherent elastic scattering of on-shell projectile partons on partonic constituents of the QGP with HTL screening. The thermal motion of plasma particles is carefully taken into account. Results on dE/dx are found to be consistent with other authors. There is a significant discrepancy in the energy loss pattern for the...
متن کاملCollisional parton energy loss in a finite size QCD medium revisited: Off mass-shell effects
Alejandro Ayala, J. Magnin, Luis Manuel Montaño and Eduardo Rojas Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, México Distrito Federal 04510, México. Centro Brasileiro de Pesquisas Fisicas, Rua Dr. Xavier Sigaud 150-Urca CEP 22290-180, Rio de Janeiro, Brazil. Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, Méx...
متن کاملQcd Collisional Energy Loss in an Increasingly Interacting Quark Gluon Plasma
The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. In this paper we investigate the dependence o...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.97.212301