Recent Belle II results related to B anomalies

Semileptonic ๐ต-meson decays involving the quark transition $b\to cl\nu$ provide excellent sensitivity to probe potential lepton-flavour universality violation. This work introduces two recent measurements related to tests of light-lepton flavour universality using a data sample collected at the $\Upsilon$(4๐‘†) resonance on the Belle II experiment corresponding to an integrated luminosity of 189fb$^{โˆ’1}$. Measurement of the ratio of the branching fractions of inclusive $B\to Xe\nu_e$ and $B\to X\mu\nu_{\mu}$ decays and measurement of angular asymmetries of $B^0\to D^{*-}l\nu$ decays agree well with standard model expectation.

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Publication Details

Published
2024-11-07
DOI
https://doi.org/10.22323/1.443.0020
Primary Topic
Occupational and environmental lung diseases
Type
article
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article

Recent Belle II results related to B anomalies

Yulan Fan
Occupational and environmental lung diseases
article

Recent Belle II results related to B anomalies

Yulan Fan
article en

Abstract

Semileptonic ๐ต-meson decays involving the quark transition $b\to cl\nu$ provide excellent sensitivity to probe potential lepton-flavour universality violation. This work introduces two recent measurements related to tests of light-lepton flavour universality using a data sample collected at the $\Upsilon$(4๐‘†) resonance on the Belle II experiment corresponding to an integrated luminosity of 189fb$^{โˆ’1}$. Measurement of the ratio of the branching fractions of inclusive $B\to Xe\nu_e$ and $B\to X\mu\nu_{\mu}$ decays and measurement of angular asymmetries of $B^0\to D^{*-}l\nu$ decays agree well with standard model expectation.

Openalex Percentile: Top 62%
Occupational and environmental lung diseases
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