Exclusive neutrino production of a charmed meson

B. Pire, L. Szymanowski, J. Wagner
2017 Physical Review D  
We calculate the leading order in α_s QCD amplitude for exclusive neutrino and antineutrino production of a D pseudoscalar charmed meson on an unpolarized nucleon. We work in the framework of the collinear QCD approach where generalized parton distributions (GPDs) factorize from perturbatively calculable coefficient functions. We include both O(m_c) terms in the coefficient functions and O(M_D) mass term contributions in the heavy meson distribution amplitudes. We emphasize the sensitivity of specific observables on the transversity quark GPDs.
doi:10.1103/physrevd.95.094001 fatcat:nqaoeo7rqng6bpr6vtxmgmz52y