Caterina Doglioni
Affiliated
Measurement of the relative width difference of the B0‐ B¯ 0 system with the ATLAS detector
Author
Summary, in English
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).
Department/s
- Particle and nuclear physics
- eSSENCE: The e-Science Collaboration
Publishing year
2016
Language
English
Publication/Series
Journal of High Energy Physics
Volume
2016
Issue
6
Document type
Journal article
Publisher
Springer
Topic
- Subatomic Physics
Keywords
- B physics
- Hadron-Hadron scattering (experiments)
Status
Published
ISBN/ISSN/Other
- ISSN: 1029-8479