Volume 382 - The Eighth Annual Conference on Large Hadron Collider Physics (LHCP2020) - Session : Flavour Physics
Measurement of the CP-violating phase phi_s in the Bs -> J/Psi phi channel at 13 TeV by CMS
A. Bragagnolo* on behalf of the CMS collaboration
*corresponding author
Full text: pdf
Pre-published on: October 13, 2020
Published on:
Abstract
These proceedings present the measurement of the weak CP-violating phase $\phi_s$ in the $B_s^0\to J/\psi\,\phi(1020)$ decay channel at $\sqrt{s} = 13$ TeV with the CMS experiment.
The measurement is based on a data sample corresponding to an integrated luminosity of 96.4 fb$^{-1}$, collected in 2017--2018. This analysis employs a dedicated tagging trigger and a novel opposite-side muon flavor tagger based on deep learning techniques. The decay width (mass) difference $\Delta\Gamma_s$ ($\Delta m_s$) between the light and heavy $B_s^0$ mass eigenstates, the $B_s^0$ average decay width $\Gamma_s$ and the CP violation observable $\left| \lambda \right|$ are also measured. The combination with the results obtained by CMS at $\sqrt{s}=8$ TeV is also presented.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access