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Calan, C. de; Navelet, H.; Picard, J.
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Physique Nucleaire1990
CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Physique Nucleaire1990
AbstractAbstract
[en] Besides the radiative corrections theory at the order α2 for reactions involving an arbitrary number of particles, this report gives the complete formula for the correction factor δ in dσ = dσBorn(1 + δ). The only approximation made here - unavoidable in this formulation - is to assume that the Born amplitude can be factorized. This calculation is valid for spin zero bosons. In the 1/2 fermion case, an extra contribution appears which has been analytically computed using a minor approximation. Special care has been devoted to the 1/v divergence of the amplitude near thresholds
[fr]
Outre la theorie des corrections radiatives a l'ordre α2 pour des reactions a un nombre quelconque de particules, le present rapport donne la formule complete permettant de calculer le δ de la relation dσ = dσBorn(1 + δ). La seule approximation faite dans ce calcul - inevitable dans cette formulation - est de supposer que l'amplitude de Born est factorisable. Le calcul est valable pour des bosons de spin zero. Dans le cas des fermions de spin 1/2 une contribution supplementaire apparait qui a ete evaluee analytiquement moyennant une approximation mineure. Une attention speciale a ete portee a la divergence en 1/v de l'amplitude au voisinage des seuilsOriginal Title
Corrections radiatives generalisees de la diffusion sur des cibles hadroniques
Primary Subject
Source
Feb 1990; 66 p
Record Type
Report
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BORN APPROXIMATION, COMPUTER CALCULATIONS, COULOMB CORRECTION, ELASTIC SCATTERING, ELECTROMAGNETIC INTERACTIONS, HADRON REACTIONS, HADRON-HADRON INTERACTIONS, INELASTIC SCATTERING, INFRARED DIVERGENCES, LEPTON-HADRON INTERACTIONS, RADIATIVE CORRECTIONS, SPIN, ULTRAVIOLET DIVERGENCES, VACUUM POLARIZATION
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