Bremsstrahlung in weak charged current polarized lepton-nucleon deep inelastic scattering

Details Bremsstrahlung in weak charged current polarized lepton-nucleon deep inelastic scattering Bremsstrahlung in weak charged current polarized lepton-nucleon deep inelastic scattering

2007-08-20

arxiv.org/abs/0708.2634v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures, talk given at Int. school-seminar NPQCD-2007

Scientific paper

The processes of lepton-nucleon scattering, including ones with both polarized beams, at high energy provide relevant information about interaction and particles structure, allowing to analyze nucleon spin structure. As energy and experimental accuracy rise, necessity to improve Born cross sections and polarized asymmetries with higher order radiative corrections becomes substantial. In this report we stress on lowest order bremsstrahlung corrections treatment using helicity amplitudes method as applied to actual nowadays charged current lepton-nucleon deep inelastic processes, that allows to simplify matrix element calculation procedure. Real photon emission contribution is calculated by means of Lorentz-invariant formalism. Kinematical peculiarities on bremsstrahlung correction are discussed.

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