PS07 Tests of the Standard Model
New predictions for electroweak corrections to neutrino–nucleon scattering
Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
Accepted: 22 November 2003
Published online: 8 April 2004
We calculate the electroweak corrections to charged- and neutral-current deep-inelastic neutrino scattering off an isoscalar target. The full one-loop-corrected cross sections, including hard photonic corrections, are evaluated and compared to an earlier result which is the basis of the NuTeV analysis. In particular, we compare results that differ in input-parameter scheme, treatment of real photon radiation and factorization scheme. The associated shifts in the theoretical prediction for the ratio of neutral- and charged-current cross sections can be larger than the experimental accuracy of the NuTeV result. This work is described in more detail in a recently published paper .
PACS: 12.15.-y Electroweak interactions – 12.15.Lk Electroweak radiative corrections – 25.30.Pt Neutrino scattering
© Società Italiana di Fisica, Springer-Verlag, 2004