"Transverse Momentum Broadening in Weakly Coupled Quark-Gluon Plasma", by Francesco D'Eramo (Berkeley, USA)

Wednesday 17 Apr 2013, 15:45 → 17:15 Europe/Berlin

PH 1121, Seminarraum T39, UG (Physik-Department der TUM)

ABSTRACT: In this talk I will present the calculation for P(k_\perp), the probability distribution for an energetic parton that propagates for a distance L through a medium without radiating to pick up transverse momentum k_\perp, for a medium consisting of weakly coupled quark-gluon plasma. We use full or HTL self-energies in appropriate regimes, resumming each in order to find the leading large-L behavior. The jet quenching parameter \hat q is the second moment of P(k_\perp), and we compare our results to other determinations of this quantity in the literature, although we emphasize the importance of looking at P(k_\perp) in its entirety.