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Modeling Bose-Einstein correlations at LEP-2

Lönnblad, Leif LU orcid and Sjöstrand, Torbjörn LU orcid (1998) In European Physical Journal C 2(1). p.165-180
Abstract
We present new algorithms for simulating Bose–Einstein correlations among final-state bosons in an event generator. The algorithms are all based on introducing Bose–Einstein correlations as a shift of final-state momenta among identical bosons, and differ only in the way energy and momentum conservation is ensured. The benefits and shortcomings of this approach, that may be viewed as a local reweighting strategy, is compared to the ones of recently proposed algorithms involving global event reweighting. We use the new algorithms to improve on our previous study of the effects of Bose–Einstein correlations on the W mass measurement at LEP 2. The intrinsic uncertainty could be as high as 100 MeV but is probably reduced to the order of 30 MeV... (More)
We present new algorithms for simulating Bose–Einstein correlations among final-state bosons in an event generator. The algorithms are all based on introducing Bose–Einstein correlations as a shift of final-state momenta among identical bosons, and differ only in the way energy and momentum conservation is ensured. The benefits and shortcomings of this approach, that may be viewed as a local reweighting strategy, is compared to the ones of recently proposed algorithms involving global event reweighting. We use the new algorithms to improve on our previous study of the effects of Bose–Einstein correlations on the W mass measurement at LEP 2. The intrinsic uncertainty could be as high as 100 MeV but is probably reduced to the order of 30 MeV with realistic experimental reconstruction procedures. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
2
issue
1
pages
16 pages
publisher
Springer
external identifiers
  • scopus:0002116746
ISSN
1434-6044
DOI
10.1007/s100530050126
language
English
LU publication?
yes
id
da943bd7-ae12-4cc0-ba4b-11c93ce84e5f
date added to LUP
2019-04-29 23:27:32
date last changed
2024-03-19 05:32:03
@article{da943bd7-ae12-4cc0-ba4b-11c93ce84e5f,
  abstract     = {{We present new algorithms for simulating Bose–Einstein correlations among final-state bosons in an event generator. The algorithms are all based on introducing Bose–Einstein correlations as a shift of final-state momenta among identical bosons, and differ only in the way energy and momentum conservation is ensured. The benefits and shortcomings of this approach, that may be viewed as a local reweighting strategy, is compared to the ones of recently proposed algorithms involving global event reweighting. We use the new algorithms to improve on our previous study of the effects of Bose–Einstein correlations on the W mass measurement at LEP 2. The intrinsic uncertainty could be as high as 100 MeV but is probably reduced to the order of 30 MeV with realistic experimental reconstruction procedures.}},
  author       = {{Lönnblad, Leif and Sjöstrand, Torbjörn}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{165--180}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Modeling Bose-Einstein correlations at LEP-2}},
  url          = {{http://dx.doi.org/10.1007/s100530050126}},
  doi          = {{10.1007/s100530050126}},
  volume       = {{2}},
  year         = {{1998}},
}