Deeply virtual Compton scattering on the neutron with positron beam
arXiv:2104.09158 · doi:10.1140/epja/s10050-021-00541-5
Abstract
Measuring DVCS on a neutron target is a necessary step to deepen our understanding of the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). The combination of neutron and proton targets allows to perform a flavor decomposition of the GPDs. Moreover, neutron-DVCS plays a complementary role to DVCS on a transversely polarized proton target in the determination of the GPD , the least known and constrained GPD that enters Ji's angular momentum sum rule. A measurement of the beam-charge asymmetry (BCA) in the reaction can significantly impact the experimental determination of the real parts of the and, to a lesser extent, GPDs.
arXiv commentarXiv admin note: substantial text overlap with arXiv:2007.15081, arXiv:1906.09419
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