Publication: Discriminating B→D*ℓν form factors via polarization observables and asymmetries
Discriminating B→D*ℓν form factors via polarization observables and asymmetries
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Fedele, M., Blanke, M., Crivellin, A., Iguro, S., Nierste, U., Simula, S., & Vittorio, L. (2023). Discriminating B→D*ℓν form factors via polarization observables and asymmetries. Physical Review D, 108(5), 055037. https://doi.org/10.1103/physrevd.108.055037
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Form factors are a crucial theory input in order to extract |Vcb| from B→D()ℓν decays, to calculate the Standard Model prediction for R(D()) and to assess the impact of new physics. In this context, the dispersive matrix approach, a first-principle calculation of the form factors, using no experimental data but rather only lattice QCD results as input, was recently applied to B→D(*)ℓν. It predicts (within the Standard Model) a much milder tension with the R(D∗) measurements than the other form factor approaches, while at the same ti
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- Fedele, Marco
- Blanke, Monika
- Iguro, Syuhei
- Nierste, Ulrich
- Simula, Silvano
- Vittorio, Ludovico
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Fedele, M., Blanke, M., Crivellin, A., Iguro, S., Nierste, U., Simula, S., & Vittorio, L. (2023). Discriminating B→D*ℓν form factors via polarization observables and asymmetries. Physical Review D, 108(5), 055037. https://doi.org/10.1103/physrevd.108.055037
