Probing the transversity spin structure of a nucleon in neutrino-production of a charmed meson
1 Centre de physique théorique, École Polytechnique, CNRS, Université Paris-Saclay, 91128, Palaiseau, France
2 National Centre for Nuclear Research (NCBJ), Warsaw, Poland
Published online: 21 March 2016
Including O(mc) terms in the coefficient functions and/or O(mD) twist 3 contributions in the heavy meson distribution amplitudes leads to a non-zero transverse amplitude for exclusive neutrino production of a D pseudoscalar charmed meson on an unpolarized target. We work in the framework of the collinear QCD approach where chiral-odd transversity generalized parton distributions (GPDs) factorize from perturbatively calculable coefficient functions.
© Owned by the authors, published by EDP Sciences, 2016
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