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Measurement of the relative width difference of the B0‐ B¯ 0 system with the ATLAS detector

Aaboud, M; Aad, G; Abbott, B.; Abdallah, J; Abdinov, O; Abeloos, B; Åkesson, Torsten LU ; Bocchetta, Simona LU ; BRYNGEMARK, LENE LU and Doglioni, Caterina LU , et al. (2016) In Journal of High Energy Physics 2016(6).
Abstract
Abstract: This paper presents the measurement of the relative width difference ΔΓd/Γd of the B0‐ B¯ 0 system using the data collected by the ATLAS experiment at the LHC in pp collisions at s=7 TeV and s=8 TeV and corresponding to an integrated luminosity of 25.2 fb−1. The value of ΔΓd/Γd is obtained by comparing the decay-time distributions of B0 → J/ψKS and B0 → J/ψK*0(892) decays. The result is ΔΓd/Γd = (−0.1±1.1 (stat.)± 0.9 (syst.)) × 10−2. Currently, this is the most precise single measurement of ΔΓd/Γd. It agrees with the Standard Model prediction and the measurements by other experiments.[Figure not available: see fulltext.] © 2016, The Author(s).
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keywords
B physics, Hadron-Hadron scattering (experiments)
in
Journal of High Energy Physics
volume
2016
issue
6
publisher
Springer
external identifiers
  • scopus:84978387429
ISSN
1126-6708
DOI
10.1007/JHEP06(2016)081
language
English
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yes
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c768aa6e-e319-4f94-be7d-8deaf7eca6d4
date added to LUP
2017-06-28 14:23:16
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2017-11-14 09:53:22
@article{c768aa6e-e319-4f94-be7d-8deaf7eca6d4,
  abstract     = {Abstract: This paper presents the measurement of the relative width difference ΔΓd/Γd of the B0‐ B¯ 0 system using the data collected by the ATLAS experiment at the LHC in pp collisions at s=7 TeV and s=8 TeV and corresponding to an integrated luminosity of 25.2 fb−1. The value of ΔΓd/Γd is obtained by comparing the decay-time distributions of B0 → J/ψKS and B0 → J/ψK*0(892) decays. The result is ΔΓd/Γd = (−0.1±1.1 (stat.)± 0.9 (syst.)) × 10−2. Currently, this is the most precise single measurement of ΔΓd/Γd. It agrees with the Standard Model prediction and the measurements by other experiments.[Figure not available: see fulltext.] © 2016, The Author(s).},
  articleno    = {81},
  author       = {Aaboud, M and Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Abeloos, B and Åkesson, Torsten and Bocchetta, Simona and BRYNGEMARK, LENE and Doglioni, Caterina and Floderus, Anders and Hedberg, Vincent and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr and , },
  issn         = {1126-6708},
  keyword      = {B physics,Hadron-Hadron scattering (experiments)},
  language     = {eng},
  number       = {6},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Measurement of the relative width difference of the B0‐ B¯ 0 system with the ATLAS detector},
  url          = {http://dx.doi.org/10.1007/JHEP06(2016)081},
  volume       = {2016},
  year         = {2016},
}