Effect of magnetic field on jet transport coefficient $\hat{q}$

• DOI: 10.48550/arxiv.2103.14440
• Publication Date: 2021-01-01
• Authors: D. Banerjee; P. Das; Souvik Paul; A. Modak; Ankita Budhraja; Sabyasachi Ghosh; S. Prasad
• Keywords: Nuclear Theory; FOS: Physical sciences; 01 natural sciences; 7. Clean energy; High Energy Physics - Experiment; Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); 0103 physical sciences; Nuclear Experiment (nucl-ex); Nuclear Experiment

We report the estimation of jet transport coefficient, $\hat{q}$ for quark- and gluon-initiated jets using a simple quasi-particle model in absence presence magnetic field. This introduces temperature field-dependent degeneracy factor partons, which is tuned by fitting entropy density lattice quantum chromodynamics data. At finite field, quark splits into parallel perpendicular components whose field dependence comes from two sources: phase space part guided shear viscosity to ratio. Due electrically neutral nature gluons, gluon affected only factor. In we find significant enhancement both at low temperature, gradually decreases towards high temperature. compare obtained results with earlier calculations based on anti-de Sitter/conformal theory correspondence, qualitatively similar trend observed. The change is, however, quantitatively different jets. an interesting observation can be explored experimentally verify effect $\hat{q}$.