Leipzig 2002 – wissenschaftliches Programm

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T: Teilchenphysik

T 305: Schwere Quarks III

T 305.1: Vortrag

Dienstag, 19. März 2002, 14:30–14:45, HS 6

QCD corrections to associated J/Psi+photon production in photon-photon collisions — •Luminita Mihaila, Michael Klasen, Bernd Kniehl, and Matthias Steinhauser — II. Institut fuer Theoretische Physik, Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg

We discuss the associated production of J/Psi mesons and photons in photon-photon collisions at NLO of QCD. The calculation of the virtual corrections involves the integration of loop diagrams with up to five internal propagators and requires a careful treatment of ultraviolet, infrared, and Coulomb singularities.