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Mixing and CP Violation in the Bd and Bs Systems at ATLAS

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published
Article number012026
<mark>Journal publication date</mark>9/12/2016
<mark>Journal</mark>Journal of Physics: Conference Series
Issue number1
Volume770
Number of pages6
Publication StatusPublished
<mark>Original language</mark>English
EventXII International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions - George Mason University, Fairfax, Virginia, United States
Duration: 12/06/2016 → 18/06/2016
http://beach2016.gmu.edu/

Conference

ConferenceXII International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions
Abbreviated titleBEACH 2016
Country/TerritoryUnited States
CityFairfax, Virginia
Period12/06/16 → 18/06/16
Internet address

Abstract

This note includes a measurement of the Bos decay parameters in the Bs→J/ψØ channel and a measurement of the B0 meson proper decay time and decay width using the statistics collected by the ATLAS experiment in Run I of the LHC. The first result presents the measurement of the CP -violating phase Øs, the decay width Γs and the width difference between the mass eigenstates ΔΓs. The second result presents the measurement of the width difference ΔΓd, which is extracted from the measurement of the lifetime dependence of B0→J/ψKs and B0→J/ψK*° decays. The obtained results are Øs = 0.098 ± 0.084(stat.) ± 0.040(syst.) rad. and ΔΓd/Γd = (-0.1 ± 1.1(stat.) ± 0.9(syst.)) × 10-2.