Matches in SemOpenAlex for { <https://semopenalex.org/work/W3123214083> ?p ?o ?g. }
- W3123214083 abstract "We revisit the status of the new-physics interpretations of the anomalies in semileptonic $B$ decays in light of the new data reported by Belle on the lepton-universality ratios $R_{D^{(*)}}$ using the semileptonic tag and on the longitudinal polarization of the $D^*$ in $Bto D^*taunu$, $F_L^{D^*}$. The preferred solutions involve new left-handed currents or tensor contributions. Interpretations with pure right-handed currents are disfavored by the LHC data, while pure scalar models are disfavored by the upper limits derived either from the LHC or from the $B_c$ lifetime. The observable $F_L^{D^*}$ also gives an important constraint leading to the exclusion of large regions of parameter space. Finally, we investigate the sensitivity of different observables to the various scenarios and conclude that a measurement of the tau polarization in the decay mode $Bto Dtaunu$ would effectively discriminate among them." @default.
- W3123214083 created "2021-02-01" @default.
- W3123214083 creator A5023009928 @default.
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- W3123214083 creator A5028161568 @default.
- W3123214083 creator A5052912535 @default.
- W3123214083 creator A5084213943 @default.
- W3123214083 date "2019-12-01" @default.
- W3123214083 modified "2023-10-03" @default.
- W3123214083 title "Revisiting the new-physics interpretation of the b → cτν data" @default.
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