Speaker
Michael Klasen
Description
Photon production, also in association with jets, is an important
probe of the quark gluon plasma. For many decades, theoretical
predictions of prompt photon production have been based on next-
to-leading order (NLO) calculations. We present a recalculation
of this process at NLO and combine it with parton showers (PS) in
the POWHEG framework. This allows for the first time full NLO+PS
simulations, including also hadronisation and detector effects. Of
particular phenomenological importance are the induced modifactions
of the transverse-momentum balance and azimuthal angle asymmetry
between the photon and recoiling jet, present now already in pp
and not only in AA collisions.
