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arxiv: 1009.3390 · v1 · pith:N7EFLP3Snew · submitted 2010-09-17 · ✦ hep-ex · physics.ins-det

Monte-Carlo Generator Photon Jets for the process e+e- -> gamma gamma

classification ✦ hep-ex physics.ins-det
keywords correctionsprocessalphacollineargammageneratorjetsmonte-carlo
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Monte-Carlo generator with photon jets radiation in collinear regions for the process \eegg is described in detail. Radiative corrections in the first order of $\alpha$ are treated exactly. Large leading logarithmic corrections coming from collinear regions are taken into account in all orders of $\alpha$ by applying the Structure Function approach. Theoretical precision of the cross section with radiative corrections is estimated to be 0.2%. This process is considered as an additional tool to measure luminosity in forthcoming experiments with the CMD-3 detector at the $e^+e^-$ collider VEPP-2000.

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