Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Renormalisation scale uncertainty in the DIS 2+1 jet cross-section

Ingelman, G. and Rathsman, J. LU (1994) In Zeitschrift für Physik C Particles and Fields 63(4). p.589-600
Abstract

The deep inelastic scattering 2+1 jet cross-section is a useful observable for precision tests of QCD, e.g. measuring the strong coupling constant αs. A consistent analysis requires a good understanding of the theoretical uncertainties and one of the fundamental ones in QCD is due to the renormalisation scheme and scale ambiguity. Different methods, which have been proposed to resolve the scale ambiguity, are applied to the 2+1 jet cross-section and the uncertainty is estimated. It is shown that the uncertainty can be made smaller by choosing the jet definition in a suitable way.

Please use this url to cite or link to this publication:
author
and
publishing date
type
Contribution to journal
publication status
published
subject
in
Zeitschrift für Physik C Particles and Fields
volume
63
issue
4
pages
12 pages
publisher
Springer
external identifiers
  • scopus:0011499779
ISSN
0170-9739
DOI
10.1007/BF01557625
language
English
LU publication?
no
id
19558ab3-2edc-4013-a451-94055964e9ec
date added to LUP
2019-05-14 13:57:04
date last changed
2023-04-09 11:13:19
@article{19558ab3-2edc-4013-a451-94055964e9ec,
  abstract     = {{<p>The deep inelastic scattering 2+1 jet cross-section is a useful observable for precision tests of QCD, e.g. measuring the strong coupling constant α<sub>s</sub>. A consistent analysis requires a good understanding of the theoretical uncertainties and one of the fundamental ones in QCD is due to the renormalisation scheme and scale ambiguity. Different methods, which have been proposed to resolve the scale ambiguity, are applied to the 2+1 jet cross-section and the uncertainty is estimated. It is shown that the uncertainty can be made smaller by choosing the jet definition in a suitable way.</p>}},
  author       = {{Ingelman, G. and Rathsman, J.}},
  issn         = {{0170-9739}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{4}},
  pages        = {{589--600}},
  publisher    = {{Springer}},
  series       = {{Zeitschrift für Physik C Particles and Fields}},
  title        = {{Renormalisation scale uncertainty in the DIS 2+1 jet cross-section}},
  url          = {{http://dx.doi.org/10.1007/BF01557625}},
  doi          = {{10.1007/BF01557625}},
  volume       = {{63}},
  year         = {{1994}},
}