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Gluon Splitting in the Color Dipole Cascades

Andersson, Bo LU ; Gustafson, Gosta LU and Lonnblad, Leif LU orcid (1990) In Nuclear Physics B 339(2). p.393-405
Abstract
We present a method to implement the gluon splitting process, g → QQ, into the dipole approximation to QCD cascades. It is known that due to the uncertainties in the interpolation between the pole regions, there are large uncertainties in the results. We show that there are further uncertainties due to the ordering in phase space of the gluon emission and gluon splitting processes. We present two options called the IO scheme (for independent dipoles) and another, the DO scheme (corresponding to an ordering in transverse momentum of the emissions) both of which lead to enhanced (hard) QQ-pair production, as compared to conventional cascades. We compare to present experimental data and give predictions for LEP energies.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics B
volume
339
issue
2
pages
13 pages
publisher
North-Holland
external identifiers
  • scopus:0001533212
ISSN
0550-3213
DOI
10.1016/0550-3213(90)90355-H
language
English
LU publication?
yes
id
4dc83576-7b49-4834-a7f3-282217a4deb7
date added to LUP
2019-05-17 10:18:54
date last changed
2024-01-01 05:22:13
@article{4dc83576-7b49-4834-a7f3-282217a4deb7,
  abstract     = {{We present a method to implement the gluon splitting process, g → QQ, into the dipole approximation to QCD cascades. It is known that due to the uncertainties in the interpolation between the pole regions, there are large uncertainties in the results. We show that there are further uncertainties due to the ordering in phase space of the gluon emission and gluon splitting processes. We present two options called the IO scheme (for independent dipoles) and another, the DO scheme (corresponding to an ordering in transverse momentum of the emissions) both of which lead to enhanced (hard) QQ-pair production, as compared to conventional cascades. We compare to present experimental data and give predictions for LEP energies.}},
  author       = {{Andersson, Bo and Gustafson, Gosta and Lonnblad, Leif}},
  issn         = {{0550-3213}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{393--405}},
  publisher    = {{North-Holland}},
  series       = {{Nuclear Physics B}},
  title        = {{Gluon Splitting in the Color Dipole Cascades}},
  url          = {{http://dx.doi.org/10.1016/0550-3213(90)90355-H}},
  doi          = {{10.1016/0550-3213(90)90355-H}},
  volume       = {{339}},
  year         = {{1990}},
}