par Ceccopieri, Federico 
;Mancusi, Davide
Référence European Physical Journal C. Particles and Fields, 73, 5, page (1-13)
Publication Publié, 2013-05
;Mancusi, DavideRéférence European Physical Journal C. Particles and Fields, 73, 5, page (1-13)
Publication Publié, 2013-05
Article révisé par les pairs
| Résumé : | We consider Lambda-hyperon production in the target-fragmentation region of semi-inclusive deep-inelastic scattering within the framework of fracture functions. We present a first attempt to determine the flavour and energy dependences of these non-perturbative distributions through a simultaneous QCD-based fit to available neutral- and charged-current semi-inclusive-DIS cross sections. Predictions based on the resulting nucleon-to-Lambda fracture functions are in good agreement with data and observables not included in the regression. The successful prediction of the Q 2 dependence of the Lambda multiplicity notably represents the first validation of the perturbative framework implied by fracture functions. © 2013 Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica. |
