27 September 2015 to 3 October 2015
Kobe, Fashion Mart, Japan
Japan timezone

Covariant (D)GLV energy loss in proton-lead collisions at the LHC

29 Sept 2015, 16:30
2h
Exhibition space 3 & 4

Exhibition space 3 & 4

Board: 0217
Poster QGP in Small Systems Poster Session

Speaker

Deke Sun (Purdue University)

Description

With the assumption that QGP is produced, as well as that its evolution can be modeled by hydrodynamics, we calculate jet radiative energy loss in p+Pb interactions at LHC, using a frame-independent formulation of the (Djordjevic-)Gyulassy-Levai-Vitev approach. In A+A reactions we have shown that covariance matters because compared to the "vanilla" (D)GLV energy loss model it gives about 50% higher v2 for pions, and also D and B mesons, due to an interplay between jet propagation direction and collective flow of the medium. I will now present results on the nuclear modification factor (R_AA) and harmonic flow (v_n) in p+Pb collisions at LHC energies. This is especially interesting because hydrodynamics requires high opacities which should then be visible in energy loss. I will discuss whether hydrodynamics in p+A reactions can be reconciled with (D)GLV energy loss and experiments, especially in view of measurements finding R_AA close to unity but with significant v2 at modestly high pT.

Primary author

Deke Sun (Purdue University)

Co-author

Denes Molnar (Purdue University)

Presentation materials