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Electroproduction of a large invariant mass photon pair

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arxiv 2003.03263 v1 pith:UKI2XHBQ submitted 2020-03-06 hep-ph

A.Pedrak , B.Pire , L.Szymanowski , J.Wagner This is my paper
classification hep-ph
keywords electroproductionenergyinvariantlargelinemassnucleonoriginate
verification ladder T0 review T1 audit T2 compute T3 formal
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We study the exclusive electroproduction of a photon pair in the kinematical regime where the diphoton invariant mass is large and where the nucleon flies almost in its original direction. We discuss the relative importance of the QCD process where the two photons originate from a quark line compared to the single (double) Bethe-Heitler processes where one (two) photons originate from the lepton line. This process turns out to be a promising tool to study generalized parton distributions in the nucleon, both at the medium energy of JLab and at a high energy electron ion collider.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    Exclusive dijet electroproduction probes GPDs via new LO amplitudes for quark (with helicity and QED) and gluon channels, with HERA comparison and EIC projections.

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    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.

  3. Exclusive Quark and Gluon Dijet Production as Probes of GPDs at Collider Energies

    hep-ph 2026-07 unverdicted novelty 5.0 of 10

    Exclusive quark and gluon dijet electroproduction is analyzed in collinear factorization as a GPD probe, extending prior work with helicity GPDs and an electromagnetic channel, with HERA comparisons and EIC projections.

  4. Coherent deeply virtual Compton scattering on helium-4 beyond leading power

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Higher-twist and NLO corrections to DVCS on He-4 enable the first 3D parton-level tomography of the helium-4 nucleus.

  5. On the Two $R$-Factors in the Small-$x$ Shockwave Formalism

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    Replacing the rapidity argument of the dipole amplitude with ln min{1/|x|, 1/|ξ|} and refining initial conditions for non-linear evolution can eliminate two R-factors in small-x shockwave calculations.

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