Computes kinematic twist-3, twist-4 and NLO alpha_s corrections to coherent DVCS on He-4 and extracts the first 3D quark-gluon tomography of the nucleus.
In such a framework, any four-vector can be written as vµ =v +n′µ +v −nµ +v µ ⊥ ,(A15) wheren 2 =n ′2 = 0,v ⊥n=v ⊥n′ = 0 andnn ′ ̸= 0
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Coherent deeply virtual Compton scattering on helium-4 beyond leading power
Computes kinematic twist-3, twist-4 and NLO alpha_s corrections to coherent DVCS on He-4 and extracts the first 3D quark-gluon tomography of the nucleus.