First results on $V_{ub}$ and $V_{cb}$ with Belle II

Racha Cheaib

28 July 2020
40th International Conference on High Energy Physics

Abstract: Precision measurements of 𝑉𝑢𝑏 and 𝑉𝑐𝑏 play a central role in precision tests of the CKM sector of the Standard Model and complement direct measurements of CP violation of B meson decays. In this talk, we present first studies for measuring 𝑉𝑢𝑏 and 𝑉𝑐𝑏 with semileptonic decays using collision events recorded at the Υ(4𝑆) resonance by the Belle II experiment. Belle II is located at the SuperKEKB accelerator complex near Tokyo in Japan, and started recording collision data in Spring 2019. We report the status of measuring branching fractions and kinematic properties of inclusive and exclusive 𝑏→𝑐ℓ𝜈¯ℓ and 𝑏→𝑢ℓ𝜈¯ℓ decays using untagged and tagged approaches and the full available Belle II data set.

The record appears in these collections:
Talks > Talk Drafts (Internal)
Public Talks

 Record created 2020-08-04, last modified 2020-08-04

Download fulltext

Rate this document:

Rate this document:
(Not yet reviewed)