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Hard Diffraction With Dynamic Gap Survival

Rasmussen, Christine LU and Sjöstrand, Torbjörn LU orcid (2016) In Journal of High Energy Physics 2016(2). p.1-38
Abstract
We present a new framework for the modelling of hard diffraction in pp and (Formula presented.) collisions. It starts from the the approach pioneered by Ingelman and Schlein, wherein the single diffractive cross section is factorized into a Pomeron flux and a Pomeron PDF. To this it adds a dynamically calculated rapidity gap survival factor, derived from the modelling of multiparton interactions. This factor is not relevant for diffraction in ep collisions, giving non-universality between HERA and Tevatron diffractive event rates. The model has been implemented in Pythia 8 and provides a complete description of the hadronic state associated with any hard single diffractive process. Comparisons with (Formula presented.) and pp data reveal... (More)
We present a new framework for the modelling of hard diffraction in pp and (Formula presented.) collisions. It starts from the the approach pioneered by Ingelman and Schlein, wherein the single diffractive cross section is factorized into a Pomeron flux and a Pomeron PDF. To this it adds a dynamically calculated rapidity gap survival factor, derived from the modelling of multiparton interactions. This factor is not relevant for diffraction in ep collisions, giving non-universality between HERA and Tevatron diffractive event rates. The model has been implemented in Pythia 8 and provides a complete description of the hadronic state associated with any hard single diffractive process. Comparisons with (Formula presented.) and pp data reveal improvement in the description of single diffractive events. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of High Energy Physics
volume
2016
issue
2
pages
1 - 38
publisher
Springer
external identifiers
  • scopus:84959206001
ISSN
1029-8479
DOI
10.1007/JHEP02(2016)142
language
English
LU publication?
yes
id
33d3bfb7-f157-49fd-bf1c-65050c32f28b
date added to LUP
2018-01-19 13:25:27
date last changed
2024-03-18 03:42:54
@article{33d3bfb7-f157-49fd-bf1c-65050c32f28b,
  abstract     = {{We present a new framework for the modelling of hard diffraction in pp and (Formula presented.) collisions. It starts from the the approach pioneered by Ingelman and Schlein, wherein the single diffractive cross section is factorized into a Pomeron flux and a Pomeron PDF. To this it adds a dynamically calculated rapidity gap survival factor, derived from the modelling of multiparton interactions. This factor is not relevant for diffraction in ep collisions, giving non-universality between HERA and Tevatron diffractive event rates. The model has been implemented in Pythia 8 and provides a complete description of the hadronic state associated with any hard single diffractive process. Comparisons with (Formula presented.) and pp data reveal improvement in the description of single diffractive events.}},
  author       = {{Rasmussen, Christine and Sjöstrand, Torbjörn}},
  issn         = {{1029-8479}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{1--38}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Hard Diffraction With Dynamic Gap Survival}},
  url          = {{https://lup.lub.lu.se/search/files/38709642/10.1007_JHEP02_2016_142.pdf}},
  doi          = {{10.1007/JHEP02(2016)142}},
  volume       = {{2016}},
  year         = {{2016}},
}