Higher-twist contributions to neutrino production of pions
Abstract
In this paper, we estimate the size of twist-3 corrections to the deeply virtual meson production in neutrino interactions due to the chiral odd transversity generalized parton distribution (GPD). We conclude that in contrast to pion electroproduction, in neutrino-induced reactions, these corrections are small. This happens due to the large contribution of unpolarized GPDs H; E to the leading-twist amplitude in neutrino production. We provide a computational code, which can be used for evaluation of the cross sections accounting for these twist-3 corrections with various GPD models. Our results are particularly relevant for analyses of the pion and kaon production in the MINERvA experiment at Fermilab.
Más información
Título según WOS: | Higher-twist contributions to neutrino production of pions |
Título según SCOPUS: | Higher-twist contributions to neutrino production of pions |
Título de la Revista: | PHYSICAL REVIEW D |
Volumen: | 89 |
Número: | 5 |
Editorial: | American Physical Society |
Fecha de publicación: | 2014 |
Idioma: | English |
DOI: |
10.1103/PhysRevD.89.053001 |
Notas: | ISI, SCOPUS - ISI |