Electromagnetic radiative corrections in parity-violating electron-proton scattering

J. Arvieux; B. Collin; H. Guler; M. Morlet; S. Niccolai; S. Ong; J. Van de Wiele

doi:10.1140/epja/i2005-10187-x

EPJ

Electromagnetic radiative corrections in parity-violating electron-proton scattering

J. Arvieux¹, B. Collin¹, H. Guler¹, M. Morlet¹, S. Niccolai¹^*, S. Ong¹^,2 and J. Van de Wiele¹

¹ Institut de Physique Nucléaire, IN2P3-CNRS, Université de Paris-Sud, F-91406, Orsay Cedex, France
² Picardie Jules Verne University, F-80000, Amiens, France

Received: 21 November 2005
Accepted: 20 December 2005
Published online: 18 January 2006

Abstract

QED radiative corrections have been calculated for leptonic and hadronic variables in parity-violating elastic ep scattering. For the first time, the calculation of the asymmetry in the elastic radiative tail is performed without the peaking-approximation assumption in hadronic variables configuration. This method has been validated in a comparison with the PVA4 data. It has been also used to evaluate the radiative corrections to the parity-violating asymmetry measured in the G⁰ experiment. The results obtained are here presented.

PACS: 25.30.Bf Elastic electron scattering – / 13.60.-r Photon and charged-lepton interactions with hadrons –

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