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DOE OSTI · 2204653

Resolved photons in S HERPA

Höche, Stefan·Krauss, Frank·Meinzinger, Peter
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Abstract

We present the first complete simulation framework, in the SHERPA event generator, for resolved photon interactions at next-to leading order accuracy. It includes photon spectra obtained through the equivalent-photon approximation, parton distribution functions to parametrize the hadronic structure of quasi-real photons, the matching of the parton shower to next-to leading order QCD calculations for resolved photon cross sections, and the modelling of multiple-parton interactions. We validate our framework against a wide range of photo-production data from LEP and HERPA experiments, observing good overall agreement. We identify important future steps relevant for high-quality simulations at the planned Electron–Ion Collider.

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Höche, Stefan, Krauss, Frank, Meinzinger, Peter. 2024-02-21. Resolved photons in S HERPA. https://doi.org/10.1140/epjc%2Fs10052-024-12551-w

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