Large-x resummation in semi-inclusive e^+ e^- annihilation
N. A. Lo Presti, Andreas Vogt, Andrea A. Almasy · 2013
Recently methods have been developed to extend the resummation of large-x double logarithms in inclusive deep-inelastic scattering (DIS) to terms not addressed by the soft-gluon exponentiation.Here we briefly outline our approach based on fixed-order results, the general large-x structure in dimensional regularization and the all-order factorization of mass singularities, which is directly applicable also to semi-inclusive e + e -annihilation (SIA).We then present some main results for the corresponding timelike splitting functions and transverse and longitudinal fragmentation functions.The close relation between DIS and SIA facilitates the determination of additional PoS(RADCOR2011)023 Generalized threshold resummation for semi-inclusive e + e -annihilation N.A. Lo Presti