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Multiple hard parton interactions at HERA

Butterworth, J. M. ; Forshaw, Jeffrey R. ; Sjöstrand, T. LU orcid and Storrow, J. K. (1996) In Journal of Physics G: Nuclear and Particle Physics 22. p.883-892
Abstract
At HERA, the large flux of almost real photons accompanying the electron beam leads to the copious photoproduction of jets. Regions of small momentum fractions x of the incoming particles are explored, where the density of partons is high. As a result, the probability for more than one hard partonic scattering occurring in a single collision could become significant. It is well known that this effect modifies the contribution of jets (minijets) to the total cross section. We discuss the latest HERA data on the total cross section in this context. The possible effects of multiple hard interactions on event shapes and jet cross sections at HERA have been studied using Monte Carlo programs. We review some of the available results, which in... (More)
At HERA, the large flux of almost real photons accompanying the electron beam leads to the copious photoproduction of jets. Regions of small momentum fractions x of the incoming particles are explored, where the density of partons is high. As a result, the probability for more than one hard partonic scattering occurring in a single collision could become significant. It is well known that this effect modifies the contribution of jets (minijets) to the total cross section. We discuss the latest HERA data on the total cross section in this context. The possible effects of multiple hard interactions on event shapes and jet cross sections at HERA have been studied using Monte Carlo programs. We review some of the available results, which in general indicate that the effects of multiple interactions should be significant and may already be manifest in the existing HERA data. (Less)
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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics G: Nuclear and Particle Physics
volume
22
pages
10 pages
publisher
IOP Publishing
external identifiers
  • scopus:0040538354
ISSN
0954-3899
DOI
10.1088/0954-3899/22/6/021
language
English
LU publication?
no
id
641c863b-a5f5-4972-8ce3-37d1ebec9b18
date added to LUP
2019-05-03 11:57:44
date last changed
2025-04-04 15:03:08
@article{641c863b-a5f5-4972-8ce3-37d1ebec9b18,
  abstract     = {{At HERA, the large flux of almost real photons accompanying the electron beam leads to the copious photoproduction of jets. Regions of small momentum fractions x of the incoming particles are explored, where the density of partons is high. As a result, the probability for more than one hard partonic scattering occurring in a single  collision could become significant. It is well known that this effect modifies the contribution of jets (minijets) to the total cross section. We discuss the latest HERA data on the total  cross section in this context. The possible effects of multiple hard interactions on event shapes and jet cross sections at HERA have been studied using Monte Carlo programs. We review some of the available results, which in general indicate that the effects of multiple interactions should be significant and may already be manifest in the existing HERA data.}},
  author       = {{Butterworth, J. M. and Forshaw, Jeffrey R. and Sjöstrand, T. and Storrow, J. K.}},
  issn         = {{0954-3899}},
  language     = {{eng}},
  pages        = {{883--892}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics G: Nuclear and Particle Physics}},
  title        = {{Multiple hard parton interactions at HERA}},
  url          = {{http://dx.doi.org/10.1088/0954-3899/22/6/021}},
  doi          = {{10.1088/0954-3899/22/6/021}},
  volume       = {{22}},
  year         = {{1996}},
}