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

preprint2010arXivOpen access

Abstract

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 αα are treated exactly. Large leading logarithmic corrections coming from collinear regions are taken into account in all orders of αα 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−e^+e^- collider VEPP-2000.

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