Hard diffraction in photoproduction with Pythia 8
Helenius, I., & Rasmussen, C. O. (2019). Hard diffraction in photoproduction with Pythia 8. European Physical Journal C, 79(5), Article 413. https://doi.org/10.1140/epjc/s10052-019-6914-1
Published inEuropean Physical Journal C
© The Authors, 2019.
We present a new framework for modeling hard diffractive events in photoproduction, implemented in the general purpose event generator Pythia 8. The model is an extension of the model for hard diffraction with dynamical gap survival in pp and pp collisions proposed in 2015, now also allowing for other beam types. It thus relies on several existing ideas: the Ingelman–Schlein approach, the framework for multiparton interactions and the recently developed framework for photoproduction in γ p, γ γ , ep and e+e− collisions. The model proposes an explanation for the observed factorization breaking in photoproduced diffractive dijet events at HERA, showing an overall good agreement with data. The model is also applicable to ultraperipheral collisions with pp and pPb beams, and predictions are made for such events at the LHC.
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Related funder(s)Academy of Finland
Funding program(s)Research post as Academy Research Fellow, AoF
Additional information about fundingThis project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 668679), and in part by the Swedish Research Council, Contract Number 2016-05996 and the Marie Sklodowska-Curie Innovative Training Network MCnetITN3 (Grant Agreement 722104). Further support is provided by the Carl Zeiss Foundation and the Academy of Finland, Project 308301. ...
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