Home > Research > Publications & Outputs > Flavor tagged time-dependent angular analysis o...

Associated organisational unit

Electronic data

  • PhysRevD.90.052007

    Rights statement: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2014 CERN, for the ATLAS Collaboration

    Final published version, 839 KB, PDF document

    Available under license: CC BY

Links

Text available via DOI:

View graph of relations

Flavor tagged time-dependent angular analysis of the B0s→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS

Research output: Contribution to journalJournal articlepeer-review

Published
  • The ATLAS collaboration
Close
Article number052007
<mark>Journal publication date</mark>23/09/2014
<mark>Journal</mark>Physical Review D
Issue number5
Volume90
Number of pages26
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A measurement of the B0s→J/ψϕ decay parameters, updated to include flavor tagging is reported using 4.9  fb−1 of integrated luminosity collected by the ATLAS detector from s√=7  TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are
ϕs0.12±0.25(stat)±0.05(syst)  radΔΓs0.053±0.021(stat)±0.010(syst)  ps−1Γs0.677±0.007(stat)±0.004(syst)  ps−1|A∥(0)|20.220±0.008(stat)±0.009(syst)|A0(0)|20.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst)  rad
where the parameter ΔΓs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.

Bibliographic note

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2014 CERN, for the ATLAS Collaboration