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dc.contributor.authorThe ATLAS Collaboration,-
dc.contributor.authorAaboud, M.-
dc.identifier.citationThe Journal of High Energy Physics, 2016; 2016(6):081-0-081-39-
dc.descriptionPublished: June 14, 2016-
dc.description.abstractThis 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.-
dc.description.statementofresponsibilityM. Aaboud ... P. Jackson ... L. Lee ... A. Petridis ... M. J. White ... et al. (The ATLAS Collaboration)-
dc.rights© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.-
dc.subjectB physics; Hadron-Hadron scattering (experiments)-
dc.titleMeasurement of the relative width difference of the B⁰-B¯⁰ system with the ATLAS detector-
dc.title.alternativeMeasurement of the relative width difference of the B(0)-B-bar(0) system with the ATLAS detector-
dc.typeJournal article-
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