The baryonic decay Lambda_b -> Lambda_c(-> Lambda pi) tau nu provides an independent probe of the R(D(*)) anomalies, with (C_VL, C_SR) as the most favored new physics solution and observables like K_1c, K_2ss showing high sensitivity.
Smith [LHCb], [arXiv:2405.11890 [hep-ex]]
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Perturbative symmetry-breaking corrections shift the branching ratio and normal lepton polarization asymmetry by ~3% in B → K0*(1430) μ+μ−, so larger experimental deviations would indicate new physics.
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The Angular Observables of $\Lambda_b \to \Lambda_c(\to \Lambda^0 \pi^+) \, \tau^-(\to \pi^- \nu_\tau)\, \bar{\nu}_\tau$ within the Paradigm of FCCC Anomalies
The baryonic decay Lambda_b -> Lambda_c(-> Lambda pi) tau nu provides an independent probe of the R(D(*)) anomalies, with (C_VL, C_SR) as the most favored new physics solution and observables like K_1c, K_2ss showing high sensitivity.
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Symmetry-Breaking Effects on Form Factors and Observables in $B \to K_0^*(1430)\mu^+\mu^-$ Decay
Perturbative symmetry-breaking corrections shift the branching ratio and normal lepton polarization asymmetry by ~3% in B → K0*(1430) μ+μ−, so larger experimental deviations would indicate new physics.