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Bose-Einstein effects and W mass determinations

Lönnblad, Leif LU orcid and Sjöstrand, Torbjörn LU orcid (1995) In Physics Letters B 351(1-3). p.293-301
Abstract

In e+ef- → W+Wf- → q1q2q3q4 events at LEP 2, the two W decay vertices are much closer to each other than typical hadronization distances. Therefore the Bose-Einstein effects, associated with the production of identical bosons (mainly pions), may provide a 'cross-talk' between the W+ and the Wf- decay products. If so, the observable W masses are likely to be affected. We develop algorithms for the inclusion of Bose-Einstein effects in multi-hadronic events. In this way we can study potential uncertainties in the W mass determination. In some scenarios the effects are significant, so that this source of uncertainty cannot be... (More)

In e+ef- → W+Wf- → q1q2q3q4 events at LEP 2, the two W decay vertices are much closer to each other than typical hadronization distances. Therefore the Bose-Einstein effects, associated with the production of identical bosons (mainly pions), may provide a 'cross-talk' between the W+ and the Wf- decay products. If so, the observable W masses are likely to be affected. We develop algorithms for the inclusion of Bose-Einstein effects in multi-hadronic events. In this way we can study potential uncertainties in the W mass determination. In some scenarios the effects are significant, so that this source of uncertainty cannot be neglected.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
Physics Letters B
volume
351
issue
1-3
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:0001546808
ISSN
0370-2693
DOI
10.1016/0370-2693(95)00393-Y
language
English
LU publication?
no
id
668b1420-0d3f-4c6b-aaf8-fb2e62c89514
date added to LUP
2019-05-02 21:53:20
date last changed
2021-01-17 06:41:52
@article{668b1420-0d3f-4c6b-aaf8-fb2e62c89514,
  abstract     = {{<p>In e<sup>+</sup>e<sup>f-</sup> → W<sup>+</sup>W<sup>f-</sup> → q<sub>1</sub>q<sub>2</sub>q<sub>3</sub>q<sub>4</sub> events at LEP 2, the two W decay vertices are much closer to each other than typical hadronization distances. Therefore the Bose-Einstein effects, associated with the production of identical bosons (mainly pions), may provide a 'cross-talk' between the W<sup>+</sup> and the W<sup>f-</sup> decay products. If so, the observable W masses are likely to be affected. We develop algorithms for the inclusion of Bose-Einstein effects in multi-hadronic events. In this way we can study potential uncertainties in the W mass determination. In some scenarios the effects are significant, so that this source of uncertainty cannot be neglected.</p>}},
  author       = {{Lönnblad, Leif and Sjöstrand, Torbjörn}},
  issn         = {{0370-2693}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{1-3}},
  pages        = {{293--301}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters B}},
  title        = {{Bose-Einstein effects and W mass determinations}},
  url          = {{http://dx.doi.org/10.1016/0370-2693(95)00393-Y}},
  doi          = {{10.1016/0370-2693(95)00393-Y}},
  volume       = {{351}},
  year         = {{1995}},
}