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arXiv · 1812.01511

Polynomiality sum rules for generalized parton distributions of spin-1 targets

W. Cosyn·A. Freese·B. Pire
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Abstract

We present the polynomiality sum rules for all leading-twist quark and gluon generalized parton distributions (GPDs) of spin-1 targets such as the deuteron nucleus. The sum rules connect the Mellin moments of these GPDs to polynomials in skewness parameter $\xi$, which contain generalized form factors (GFFs) as their coefficients. The decompositions of local currents in terms of generalized form factors for spin-1 targets are obtained as a byproduct of this derivation.

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W. Cosyn, A. Freese, B. Pire. 2018-12-04. Polynomiality sum rules for generalized parton distributions of spin-1 targets. https://doi.org/10.1103/physrevd.99.094035

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