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- W4384648483 abstract "We report on recent results obtained by the Belle II experiment related to searches for beyond-the-standard-model physics. The $B$ meson decay data sample used corresponds to an integrated luminosity of $L = 189$ fb$^{-1}$. In recent years, discrepancies from standard-model predictions, which suggest violation of lepton-flavor universality, have emerged in multiple measurements of $B$-meson decays. In this document two analyses aimed to search for violation of the light-lepton universality are reported: the inclusive $R(X_{e/mu})$ measurement and an angular analysis of the $B^0 to D^{*-} l^+ nu_l$, with $l=e,mu$, decays. In addition, beyond-the-standard-model physics can manifests itself with the production of new particles. The search for a long-lived spin-0 particle in $bto s$ transitions, and its interpretation in two dark sector models, is reported." @default.
- W4384648483 created "2023-07-19" @default.
- W4384648483 creator A5009096552 @default.
- W4384648483 date "2023-07-17" @default.
- W4384648483 modified "2023-09-27" @default.
- W4384648483 title "Recent Belle II results on BSM physics" @default.
- W4384648483 doi "https://doi.org/10.48550/arxiv.2307.08638" @default.
- W4384648483 hasPublicationYear "2023" @default.
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