Medium-induced gluon radiation with full resummation of multiple scatterings for realistic parton-medium interactions

• DOI: 10.1007/jhep07(2020)114
• Publication Date: 2020-07-17T20:03:36Z
• Authors: Carlota Andres; Liliana Apolinário; Fabio Dominguez
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Phenomenology (hep-ph); Nuclear Theory; Nuclear and particle physics. Atomic energy. Radioactivity; Jets; 0103 physical sciences; FOS: Physical sciences; QC770-798; Heavy Ion Phenomenology; 01 natural sciences

Abstract The new precision era of jet quenching observables at both RHIC and the LHC calls for an improved and more precise description of in-medium gluon emissions. The development of new theoretical tools and analytical calculations to tackle this challenge has been hampered by the inability to include the effects of multiple scatterings with the medium using a realistic model for the parton-medium interactions. In this paper, we show how the analytical expressions for the full in-medium spectrum, including the resummation of all multiple scatterings, can be written in a form where the numerical evaluation can be easily performed without the need of the usually employed harmonic or single hard approximations. We present the transverse momentum and energy-dependent medium- induced gluon emission distributions for known realistic interaction models to illustrate how our framework can be applied beyond the limited kinematic regions of previous calculations.