Berlin 2005 – wissenschaftliches Programm

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T: Teilchenphysik

T 210: Strukturfunktionen

T 210.5: Vortrag

Freitag, 4. März 2005, 15:00–15:15, TU H4105-4106

Prompt photon production at HERA — •Dorina Lampe, Kaloyan Krastev, and Krzysztof Nowak — DESY, Notkestr.85, 22603 Hamburg

Prompt photon processes are sensitive to the transverse momentum distribution of the quarks which enter the γ q → γ q process. Detailed investigations are presented to identify experimentally the photons coming from the above mentioned process. The cross section for prompt photon production is interpreted in terms of un-integrated quark densities. The prompt photon process is also used to study the quark jet in detail.