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Heavy-meson semileptonic decays for the Standard Model and beyond
Conference proceeding   Open access

Heavy-meson semileptonic decays for the Standard Model and beyond

Yuzhi Liu, Ran Zhou, Jon Bailey, A Bazavov, C Bernard, C Bouchard, C DeTar, Daping Du, A El-Khadra, J Foley, …
arXiv.org
International Symposium on Lattice Field Theory - LATTICE 2013, 31 (Mainz, Germany, 07/29/2013–08/03/2013)
12/11/2013
DOI: 10.48550/arXiv.1312.3197
url
https://doi.org/10.48550/arXiv.1312.3197View
Open Access

Abstract

We calculate the form factors for the semileptonic decays \(B_s\to K\ell\nu\) and \(B\to K\ell\ell\) with lattice QCD. We work at several lattice spacings and a range of light quark masses, using the MILC 2+1-flavor asqtad ensembles. We use the Fermilab method for the \(b\) quark. We obtain chiral-continuum extrapolations for \(E_K\) up to \(\sim1.2\) GeV and then extend to the entire kinematic range with the model-independent \(z\) expansion.
Flavor (particle physics) Form factors Quantum chromodynamics Quarks

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