QED interconnection effects on $W$ momentum distributions at LEP-2
(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
- Khoze, Valery A.
and Sjöstrand, Torbjörn
LU
- organization
- publishing date
- 1996
- 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}}, }