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Hard diffraction in photoproduction with Pythia 8

Helenius, Ilkka LU and Rasmussen, Christine O. LU (2019) In European Physical Journal C 79(5).
Abstract


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 p p and p p ¯ 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 γp , γγ, e p and e
+
e ... (More)


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 p p and p p ¯ 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 γp , γγ, e p 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 p p and p Pb beams, and predictions are made for such events at the LHC.

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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
79
issue
5
article number
413
publisher
Springer
external identifiers
  • scopus:85065904171
ISSN
1434-6044
DOI
10.1140/epjc/s10052-019-6914-1
language
English
LU publication?
yes
id
ed6b378e-af57-4ee4-9a42-15efd6b32e1c
date added to LUP
2019-05-22 14:19:06
date last changed
2024-02-15 08:07:57
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  abstract     = {{<p><br>
                                                         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 p p and p p ¯ 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 γp , γγ, e p and e                              <br>
                            <sup>+</sup><br>
                                                         e                              <br>
                            <sup>-</sup><br>
                                                          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 p p and p Pb beams, and predictions are made for such events at the LHC.                         <br>
                        </p>}},
  author       = {{Helenius, Ilkka and Rasmussen, Christine O.}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Hard diffraction in photoproduction with Pythia 8}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-019-6914-1}},
  doi          = {{10.1140/epjc/s10052-019-6914-1}},
  volume       = {{79}},
  year         = {{2019}},
}