86 research outputs found
Radiative effects in scattering of polarized leptons by polarized nucleons and light nuclei
Recent developments in the field of radiative effects in polarized
lepton-nuclear scattering are reviewed. The processes of inclusive,
semi-inclusive, diffractive and elastic scattering are considered. The explicit
formulae obtained within the covariant approach are discussed. FORTRAN codes
POLRAD, RADGEN, HAPRAD, DIFFRAD and MASCARAD created on the basis of the
formulae are briefly described. Applications for data analysis of the current
experiments on lepton-nuclear scattering at CERN, DESY, SLAC and TJNAF are
illustrated by numerical results.Comment: 39 pages, 12 figures, contribution to Lepton-Photon 0
ESFRAD. FORTRAN code for calculation of QED corrections to polarized ep-scattering by the electron structure function method
The main features of the electron structure function method for calculations
of the higher order QED radiative effects to polarized deep-inelastic
ep-scattering are presented. A new FORTRAN code ESFRAD based on this method was
developed. A detailed quantitative comparison between the results of ESFRAD and
other methods implemented in the codes POLRAD and RADGEN for calculation of the
higher order radiative corrections is performed.Comment: Contribution to: 17th International Workshop on High-Energy Physics
and Quantum Field Theory (QFTHEP 2003), 154-16
Charge-odd correlation of lepton and pion pair production in electron-proton scattering
Charge-odd correlation of the charged pair components produced at
electron-proton scattering can measure three current correlation averaged by
proton state. In general these type correlation can be described by 14
structure functions. We restrict here by consideration of inclusive
distributions of a pair components, which is the light-cone projection of the
relevant hadronic tensor. Besides we consider the point-like approximation for
proton and pion. Numerical estimations show that charge-odd effects can be
measured in exclusive ep -> 2 pi X experiments.Comment: 10 pages, 4 figure
- …