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Double parton interactions initiated by direct photons in γp and γA collisions revisited

B. Blok and R. Segev

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Phys. Rev. D 113, 014009 – Published 9 January, 2026

DOI: https://doi.org/10.1103/k4qk-z199

Abstract

We consider the double parton scattering (DPS) initiated by direct photons in γp and γA collisions. We extend the previously known results for photoproduction to the case of electroproduction with nonzero photon virtuality Q2, and then consider the DPS for both photo and electroproduction for HERA and EIC (electron ion collider) kinematics. The number of DPS events at the EIC is shown to be of the same order as in HERA and is even larger, with increase in luminosity compensating the decrease of the center-of-mass energy.

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Phys. Rev. D 113, 014009– Published 9 January, 2026
  • Received 23 March 2025
  • Accepted 18 December 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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