Erratum: Combined analysis of semileptonic B decays to D and D* : R(D(*)) , |Vcb| , and new physics [Phys. Rev. D 95 , 115008 (2017)]
نویسندگان
چکیده
منابع مشابه
B and D Semileptonic Decays to Light Mesons
We present an update of our calculation of the form factors and partial widths of semileptonic heavy-to-light meson decays, in the quenched approximation. Our complete data set has now been analysed and our results include chiral extrapolations and a study of the lattice spacing dependence.
متن کاملInclusive semileptonic B decays: |Vcb | and |Vub|
With the discovery of CP violation in the B mesons, and the precise measurement of the angle β [1] of the Unitarity Triangle (UT), the experimental effort focus on the measurements of other parameters to over-constraint the Cabibbo-KobayashiMaskawa (CKM) matrix [2]. In particular the information on the side Rb opposite to the angle β is crucial to test the standard model prediction for CP viola...
متن کاملIsotopic splittings and OPE in B → D semileptonic decays
It is shown that the kinematical difference in the decays B − → D 0 ℓ ˜ ν and B 0 → D + ℓ ˜ ν due to the isotopic mass splittings of the B and D mesons is compensated in the total decay rate by an appropriate difference in the lepton spectra. Thus there is no effect on the total decay rates in the linear order in the isotopic mass splittings, as required by the general consideration based on th...
متن کاملEFFECTIVE LAGRANGIAN FOR B and D SEMILEPTONIC DECAYS
An effective lagrangian incorporating both chiral and heavy quark symmetries and describing the low momentum interactions of heavy mesons and light scalar and vector resonances is presented. Using some available data and assuming nearest pole dominance for the form factors we can calculate, at the leading order in chiral and heavy quark expansion, semileptonic B and D decays into light mesons.
متن کاملComment on Vub from Exclusive Semileptonic B and D Decays
The prospects for determining |Vub| from exclusive B semileptonic decay are discussed. The double ratio of form factors (f (B→ρ)/f (B→K ∗))/ (f (D→ρ)/f (D→K ∗)) is calculated using chiral perturbation theory. Its deviation from unity due to contributions that are non-analytic in the symmetry breaking parameters is very small. Combining experimental data obtainable from B → ρ l ν̄l, B → Kl l̄ and ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2018
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.97.059902