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QED interconnection effects on $W$ momentum distributions at LEP-2

Khoze, Valery A. and Sjöstrand, Torbjörn LU orcid (1996) In Zeitschrift für Physik C Particles and Fields 70(4). p.625-636
Abstract
The process ${⤪ e}^{+}{⤪ e}^{-}⌝ghtarrow {⤪ W}^{+}{⤪ W}^{-}⌝ghtarrow {⤪ f}_{1}{⩈erline {⤪ f}}_{2}{⤪ f}_{3}{⩈erline {⤪ f}}_{4}$ contains charges in the initial, intermediate and final stages. This gives a rich selection of possible QED interconnection effects. Coulomb interaction is the simplest of these, and can thus be used to explore consequences. We study a number of experimental observables, with emphasis on those related to the W momentum distribution. Second-order Coulomb effects are shown to be practically negligible. The limited LEP 2 statistics will not allow detailed tests, so any theory uncertainty will be reflected in the systematic error on the W mass. Currently the uncertainty from this source may be as high as 20 MeV.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Zeitschrift für Physik C Particles and Fields
volume
70
issue
4
pages
12 pages
publisher
Springer
external identifiers
  • scopus:0007835779
ISSN
0170-9739
DOI
10.1007/s002880050137
language
English
LU publication?
yes
id
6ecd37e0-24c0-461c-acb9-1e4eb00854df
date added to LUP
2019-05-07 15:21:09
date last changed
2024-01-01 03:27:42
@article{6ecd37e0-24c0-461c-acb9-1e4eb00854df,
  abstract     = {{The process ${⤪ e}^{+}{⤪ e}^{-}⌝ghtarrow {⤪ W}^{+}{⤪ W}^{-}⌝ghtarrow {⤪ f}_{1}{⩈erline {⤪ f}}_{2}{⤪ f}_{3}{⩈erline {⤪ f}}_{4}$ contains charges in the initial, intermediate and final stages. This gives a rich selection of possible QED interconnection effects. Coulomb interaction is the simplest of these, and can thus be used to explore consequences. We study a number of experimental observables, with emphasis on those related to the W momentum distribution. Second-order Coulomb effects are shown to be practically negligible. The limited LEP 2 statistics will not allow detailed tests, so any theory uncertainty will be reflected in the systematic error on the W mass. Currently the uncertainty from this source may be as high as 20 MeV.}},
  author       = {{Khoze, Valery A. and Sjöstrand, Torbjörn}},
  issn         = {{0170-9739}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{625--636}},
  publisher    = {{Springer}},
  series       = {{Zeitschrift für Physik C Particles and Fields}},
  title        = {{QED interconnection effects on $W$ momentum distributions at LEP-2}},
  url          = {{http://dx.doi.org/10.1007/s002880050137}},
  doi          = {{10.1007/s002880050137}},
  volume       = {{70}},
  year         = {{1996}},
}