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Inclusive and exclusive observables from dipoles in high energy collisions

Flensburg, Christoffer LU ; Gustafson, Gösta LU and Lönnblad, Leif LU (2011) In Journal of High Energy Physics 2011(8). p.1-45
Abstract
In a series of papers we have developed a Monte Carlo model based on Mueller's dipole picture of BFKL-evolution, supplemented with non-leading corrections, which has shown to be very successful in describing inclusive and semi-inclusive observables in hadron collisions. In this paper we present a further extension of this model to also describe exclusive final states. This is a highly non-trivial extension, and we have encountered many details that influence the description, and for which no guidance from perturbative QCD could be found. Hence we have had to make many choices based on semi-classical and phenomenological arguments. The end result is a new event generator called DIPSY which can be used to simulate complete minimum-bias... (More)
In a series of papers we have developed a Monte Carlo model based on Mueller's dipole picture of BFKL-evolution, supplemented with non-leading corrections, which has shown to be very successful in describing inclusive and semi-inclusive observables in hadron collisions. In this paper we present a further extension of this model to also describe exclusive final states. This is a highly non-trivial extension, and we have encountered many details that influence the description, and for which no guidance from perturbative QCD could be found. Hence we have had to make many choices based on semi-classical and phenomenological arguments. The end result is a new event generator called DIPSY which can be used to simulate complete minimum-bias non-diffractive hadronic collision events. Although the description ofdata from the Tevatron and LHC is not quite as good as for P ythia 8, the most advanced of the general purpose event generator programs for these processes, our results are clearly competitive, and can be expected to improve with careful tuning. In addition, as our model is very different from conventional multiple scattering scenaria, the DIPSY program can be used to gain deeper insight in the soft and semi-hard processes involved both in hadronic and heavy ion collisions. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Saturation, Diffraction, Small-x physics, Dipole Model, DIS
in
Journal of High Energy Physics
volume
2011
issue
8
pages
1 - 45
publisher
Springer
external identifiers
  • wos:000294901200059
  • scopus:80053149466
ISSN
1126-6708
DOI
10.1007/JHEP08(2011)103
language
English
LU publication?
yes
id
2c13fbbb-8690-4d9f-862e-458af1e6065d (old id 2117799)
alternative location
http://dx.doi.org/10.1007/JHEP08(2011)103
date added to LUP
2011-08-29 16:07:51
date last changed
2017-10-22 03:07:37
@article{2c13fbbb-8690-4d9f-862e-458af1e6065d,
  abstract     = {In a series of papers we have developed a Monte Carlo model based on Mueller's dipole picture of BFKL-evolution, supplemented with non-leading corrections, which has shown to be very successful in describing inclusive and semi-inclusive observables in hadron collisions. In this paper we present a further extension of this model to also describe exclusive final states. This is a highly non-trivial extension, and we have encountered many details that influence the description, and for which no guidance from perturbative QCD could be found. Hence we have had to make many choices based on semi-classical and phenomenological arguments. The end result is a new event generator called DIPSY which can be used to simulate complete minimum-bias non-diffractive hadronic collision events. Although the description ofdata from the Tevatron and LHC is not quite as good as for P ythia 8, the most advanced of the general purpose event generator programs for these processes, our results are clearly competitive, and can be expected to improve with careful tuning. In addition, as our model is very different from conventional multiple scattering scenaria, the DIPSY program can be used to gain deeper insight in the soft and semi-hard processes involved both in hadronic and heavy ion collisions.},
  author       = {Flensburg, Christoffer and Gustafson, Gösta and Lönnblad, Leif},
  issn         = {1126-6708},
  keyword      = {Saturation,Diffraction,Small-x physics,Dipole Model,DIS},
  language     = {eng},
  number       = {8},
  pages        = {1--45},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Inclusive and exclusive observables from dipoles in high energy collisions},
  url          = {http://dx.doi.org/10.1007/JHEP08(2011)103},
  volume       = {2011},
  year         = {2011},
}