Nuclear Physics & RIKEN Theory Seminar

"Prompt photons at RHIC: a multipurpose observable"

Presented by Francois Arleo, CERN

Friday, May 2, 2008, 2:00 pm — Small Seminar Room, Bldg. 510

In this talk I will present two interesting phenomenological aspects of prompt photon production in hadronic collisions at RHIC and LHC. The possibility to measure the nuclear modification of the gluon distribution at small x, G^A(x)/G^p(x), is first discussed. The production of isolated photons in p-A (or d-A) collisions turns out to be a promising channel which allows for a reliable extraction of the gluon density and the structure function in a nucleus over that in a proton. In the section part, I will then explore how double inclusive photon-hadron production in p-p scattering can be used as a tool to constrain the fragmentation functions into hadrons, as well as their possible modifications in A-A collisions.

Hosted by: Harmen Warringa

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