Measurement of the relative width difference of the $$ {B}^0\hbox{-} {\overline{B}}^0 $$ system with the ATLAS detector

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Measurement of the relative width difference of the $$ {B}^0\hbox{-} {\overline{B}}^0 $$ system with the ATLAS detector

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Title: Measurement of the relative width difference of the $$ {B}^0\hbox{-} {\overline{B}}^0 $$ system with the ATLAS detector
Author: Franklin, Melissa; Huth, John; Morii, Masahiro

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Citation: ATLAS Collaboration. 2016. Measurement of the Relative Width Difference of the $$ {B}^0\hbox{-} {\overline{B}}^0 $$ System with the ATLAS Detector. J. High Energ. Phys. 6. doi:10.1007/jhep06(2016)081.
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Abstract: This paper presents the measurement of the relative width difference ∆Γd/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 ∆Γd/Γd is obtained by comparing the decay-time distributions of B 0 → J/ψKS and B 0 → J/ψK ∗0 (892) decays. The result is ∆Γd/Γd = (−0.1±1.1 (stat.)±0.9 (syst.))×10−2. Currently, this is the most precise single measurement of ∆Γd/Γd. It agrees with the Standard Model prediction and the measurements by other experiments.
Published Version: doi:10.1007/JHEP06(2016)081
Other Sources: https://arxiv.org/pdf/1605.07485.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:29362031
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