LHCb reports the first experimental evidence for the Bs0 to K- pi+ gamma decay with 3.5 sigma significance and measures its branching fraction ratio to the B0 decay in two mass ranges.
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LHCb measures f_L^d = 0.600 and f_L^s = 0.159 for B to K* Kbar* decays and reports a ratio L of 4.92 that confirms 4.4 sigma discrepancy with theory.
Branching fraction B(Λ → p μ⁻ ν̄_μ) measured as (1.462 ± 0.016 ± 0.100 ± 0.011) × 10^{-4}, improving prior precision by a factor of two and yielding R^{μe} = 0.175 ± 0.012 consistent with the Standard Model.
citing papers explorer
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First evidence of the $B_s^0\rightarrow K^-\pi^+\gamma$ decay
LHCb reports the first experimental evidence for the Bs0 to K- pi+ gamma decay with 3.5 sigma significance and measures its branching fraction ratio to the B0 decay in two mass ranges.
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Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays
LHCb measures f_L^d = 0.600 and f_L^s = 0.159 for B to K* Kbar* decays and reports a ratio L of 4.92 that confirms 4.4 sigma discrepancy with theory.
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Branching fraction measurement of the $\mathit{\Lambda} \to p \mu^- \overline{\nu}_{\mu}$ decay
Branching fraction B(Λ → p μ⁻ ν̄_μ) measured as (1.462 ± 0.016 ± 0.100 ± 0.011) × 10^{-4}, improving prior precision by a factor of two and yielding R^{μe} = 0.175 ± 0.012 consistent with the Standard Model.