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Coherent and incoherent deeply virtual Compton scattering in electron–ion collisions at the EIC and LHeC

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Abstract

In this paper we investigate the deeply virtual Compton scattering (DVCS) process in electron–ion collisions at the Electron–Ion Collider (EIC) and Large Hadron Electron Collider (LHeC). The coherent and incoherent DVCS cross sections and differential distributions are estimated considering the possible states of nucleon configurations in the nuclear wave function and taking into account of the nonlinear corrections to the QCD dynamics. The impact of the nonlinear (saturation) effects is estimated. Our results indicate that a future experimental analysis of these processes can shed light on the description of the QCD dynamics at high energies.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: This is a theoretical research study, and is based upon analysis of the public experimental data, so no additional data is associated with this work.]

Notes

  1. A similar final state is also generated by the Bethe-Heitler (BH) process, where the elastic electron–hadron scattering is followed by photon emission off the electron. In our analysis, we will assume that the DVCS contribution can be experimentally separated.

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Acknowledgements

VPG is partially financed by the Brazilian funding agencies CNPq, FAPERGS and INCT-FNA (process number 464898/2014-5). DEM is partially financed by the Brazilian funding agencies CNPq (process number 164609/2020-2) and INCT-FNA (process number 464898/2014-5). CRS is partially financed by the Brazilian funding agencies CAPES (process number 001) and INCT-FNA (process number 464898/2014-5)

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Authors and Affiliations

  1. High and Medium Energy Group, Instituto de Física e Matemática, Universidade Federal de Pelotas (UFPel), Caixa Postal 354, Pelotas, RS, 96010-900, Brazil

    Victor P. Gonçalves, Daniel E. Martins & Celso R. Sena

Authors
  1. Victor P. Gonçalves
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  2. Daniel E. Martins
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  3. Celso R. Sena
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Correspondence to Victor P. Gonçalves.

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Communicated by X.-N. Wang.

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Gonçalves, V.P., Martins, D.E. & Sena, C.R. Coherent and incoherent deeply virtual Compton scattering in electron–ion collisions at the EIC and LHeC. Eur. Phys. J. A 58, 18 (2022). https://doi.org/10.1140/epja/s10050-022-00664-3

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