Pion GPDs: Constraints, modelling and experimental access
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Abstract
The study of Generalised Parton Distributions is a hot-topic in hadron physics. Due to
its connection with chiral symmetry breaking, assessing those of pions is of great inter-
est. For this reason, we present a novel model-building strategy for pion GPDs capable
of fulfilling all of the theoretical constraints required by QCD: support, polynomiality,
positivity and soft-pion theorem. The methodology is illustrated with a simple model,
and exploited afterwards for the calculation of pions’ deeply virtual Compton Scattering
(DVCS) Compton Form Factors (CFFs) at NLO. The results show gluon-content to play
the dominant role in pions’ response to DVCS at EIC kinematics
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Morgado Chávez, J.M.: "Pion GPDs: Constraints, modelling and experimental access". En: Proceedings for the XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, Stony Brook University, New York, USA, 12-16 April 2021 doi:10.21468/SciPostPhysProc
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