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- W4285773875 abstract "We present updates for our nonperturbative lattice QCD calculations to determine semileptonic form factors for exclusive $Bto piellnu$, $Bto D ellnu$, $B_sto Kell nu$, and $B_sto D_sellnu$ decays. Our calculation is based on RBC-UKQCD's set of $2+1$-dynamical-flavor gauge field ensembles. In the valence sector we use domain wall fermions for up/down, strange and charm quarks, whereas bottom quarks are simulated with the relativistic heavy quark action. The continuum limit is based on three lattice spacings. Using kinematical $z$ expansions we aim to obtain form factors over the full $q^2$ range. These form factors are the basis for predicting ratios addressing lepton flavor universality or, when combined with experimental results, to obtain CKM matrix elements $|V_{ub}|$ and $|V_{cb}|$." @default.
- W4285773875 created "2022-07-19" @default.
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- W4285773875 date "2019-12-20" @default.
- W4285773875 modified "2023-09-23" @default.
- W4285773875 title "Semileptonic $Btopiellnu$, $Bto Dellnu$, $B_sto Kellnu$, and $B_sto D_sellnu$ decays" @default.
- W4285773875 doi "https://doi.org/10.48550/arxiv.1912.09946" @default.
- W4285773875 hasPublicationYear "2019" @default.
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