Time-dependent πͺπ· violation measurements at Belle II
Year: 2024
Type: conference-paper
Abstract: We report the measurements of time-dependent πΆπ violation at Belle II. The benchmark measurements of $π΅^0$ lifetime (ππ΅0 ) and mixing frequency (Ξππ) and time-dependent πΆπ asymmetries in $π΅^0$β π½/π$πΎ_S^0$ have been performed using 190fb$^{β1}$. These measurements are statistically limited and show excellent detector performance and readiness for analysis setup. We also present the πΆπ asymmetries in π β $q\overline{ q }s$ transitions using 362fb$^{β1}$ which are very crucial to probe the effective value of sin $2π_1$ and sensitive for new physics appearing through loops. All results agree with previous determinations and some of them are already competitive with the worldβs best measurement.
DOI: 10.22323/1.443.0003
Author: Sagar Hazra
Institution: Tata Institute of Fundamental Research
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4404149574