Medium-induced emissions of hard gluons

• DOI: 10.1016/j.physletb.2012.10.040
• Publication Date: 2012-10-23T08:16:06Z
• Authors: Liliana Apolinário; Néstor Armesto; Carlos A. Salgado
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Phenomenology (hep-ph); Nuclear Theory; 0103 physical sciences; FOS: Physical sciences; 01 natural sciences

17 pages, 6 figures. Minor corrections, references updated. Accepted by Phys. Lett. B<br/>We present a derivation of the medium-induced gluon radiation spectrum beyond the current limitation of soft gluon emission. Making use of the path integral approach to describe the propagation of high-energy particles inside a medium, we study the limiting case of a hard gluon emission. Analytical and numerical results are presented and discussed within the multiple soft scattering approximation. An ansatz interpolating between soft and hard gluon emissions is provided. The Landau-Pomeranchuk-Migdal effect is observed in the expected kinematic region.<br/>