Flavor structure of generalized parton distributions from neutrino experiments
Keywords: Generalized Patron Distribtions, Neutrinos
Abstract
The analysis of deeply virtual meson production is extended to neutrino-production of the pseudo-Goldstone mesons (π,K,η) on nucleons, with the flavor content of the recoil baryon either remaining intact, or changing to a hyperon from the SU(3) octet. We rely on the SU(3) relations and express all the cross sections in terms of the proton generalized parton distributions (GPDs). The corresponding amplitudes are calculated at the leading twist level and in the leading order in αs, using a phenomenological model of GPDs. We provide a computational code, which can be used for evaluation of the cross sections employing various GPD parametrizations. We conclude that these processes can be studied in the experiment Minerva at Fermilab, which could supplement the measurements at JLAB helping to extract the GPD flavor structure from data.
Más información
Título de la Revista: | PHYSICAL REVIEW D |
Volumen: | D86 |
Editorial: | American Physical Society |
Fecha de publicación: | 2012 |
Página de inicio: | 113018-1 |
Página final: | 113018-10 |
Idioma: | English |
Financiamiento/Sponsor: | Fondecyt Regular 1120920 |
DOI: |
DOI: http://dx.doi.org/10.1103/PhysRevD.86.113018 |
Notas: | ISI |