CP violation at ATLAS

3rd Symposium on Prospects in the Physics of Discrete Symmetries

Barton, Adam^1

Physics Department, Lancaster University, LA1 4YB Lancaster, United Kingdom^1

关键词: ATLAS detectors;    Average values;    CP violations;    Expected values;    Integrated luminosity;    Measured parameters;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/447/1/012025/pdf
DOI  :  10.1088/1742-6596/447/1/012025

来源: IOP

【 摘 要 】

A measurement of several properties of the Bs meson, including the CP-violating weak phase s and the mixing-induced width difference ΔΓs, is performed using the decay Bs → J/ψ(μ+μ-)φ(K+K-), from a dataset of 4.9 fb-1of integrated luminosity collected in 2011 by the ATLAS detector at the LHC. The measured parameters are consistent with the world average values and theoretical expectations; in particular φs is within 1 σ of the expected value in the Standard Model.