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Generalized parton distributions from neutrino experiments: twist-three effects

2014/01/25 by B. Z. Kopeliovich, Ivan Schmidt, M. Siddikov
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1051/epjconf/20147306003

4 pages, 1 figure. Contribution to the proceedings of the 13th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2013), Sep 30-Oct 4, Rome, Italy. Details of evaluation may be found in arXiv:1401.1547

arxiv created 2014/01/25 · arxiv updated 2015/06/18

Abstract

We study the twist-3 corrections to the neutrino induced deeply virtual meson production due to the chiral odd transversity Generalized Parton Distribution (GPD). We found that in contrast to pion electroproduction, in neutrino-induced processes these corrections are small. This occurs due to large contribution of unpolarized GPDs H, E to the twist-2 amplitude in neutrinoproduction. Our results are important for analyses of the pion and kaon production in the Minerva experiment at FERMILAB.

Citations