Volume 443 - 20th International Conference on B-Physics at Frontier Machines (BEAUTY2023) - Main session
Time-dependent π‘ͺ𝑷 violation measurements at Belle II
S.Β Hazra* and Β On behalf of the BELLE II collaboration
*: corresponding author
Full text: pdf
Published on: November 07, 2024
Abstract
We report the measurements of time-dependent 𝐢𝑃 violation at Belle II. The benchmark measurements of $𝐡^0$ lifetime (𝜏𝐡0 ) and mixing frequency (Ξ”π‘šπ‘‘) and time-dependent 𝐢𝑃 asymmetries in $𝐡^0$β†’ 𝐽/πœ“$𝐾_S^0$ have been performed using 190fb$^{βˆ’1}$. These measurements are statistically limited
and show excellent detector performance and readiness for analysis setup. We also present the 𝐢𝑃
asymmetries in 𝑏 β†’ $q\overline{ q }s$ transitions using 362fb$^{βˆ’1}$ which are very crucial to probe the effective
value of sin $2πœ™_1$ and sensitive for new physics appearing through loops. All results agree with
previous determinations and some of them are already competitive with the world’s best measurement.
DOI: https://doi.org/10.22323/1.443.0003
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