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Plasma damping effects on the radiative energy loss of relativistic particles
Bluhm M., Gossiaux P.-B., Aichelin J.
Physical Review Letters 109 (2012) 169902 - http://hal.in2p3.fr/in2p3-00734293
Physique/Physique des Hautes Energies - Phénoménologie
Physique/Physique des Hautes Energies - Théorie
Physique/Physique Nucléaire Théorique
Plasma damping effects on the radiative energy loss of relativistic particles
M. Bluhm1, Pol-Bernard Gossiaux ()1, Jörg Aichelin1
1 :  SUBATECH - Laboratoire SUBATECH Nantes
CNRS : UMR6457 – IN2P3 – Université de Nantes – École Nationale Supérieure des Mines - Nantes
4, rue Alfred Kastler - 44070 Nantes Cedex 03
The energy loss of a relativistic charge undergoing multiple scatterings while traversing an infinite, polarizable and absorptive plasma is investigated. Polarization and damping mechanisms in the medium are phenomenologically modelled by a complex index of refraction. Apart from the known Ter-Mikaelian effect related to the dielectric polarization of matter, we find an additional, substantial reduction of the energy loss due to damping of radiation. The observed effect is more prominent for larger damping and/or larger energy of the charge. A conceivable analog of this phenomenon in QCD could influence the study of jet quenching phenomena in ultra-relativistic heavy-ion collisions at RHIC and LHC.

Articles dans des revues avec comité de lecture
Physical Review Letters (Phys. Rev. Lett.)
Publisher American Physical Society
ISSN 0031-9007 (eISSN : 1079-7114)

Sep 2012. 4pp. 3 figures. Revised journal version - Erratum
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