Volume 334 -
The 36th Annual International Symposium on Lattice Field Theory
(LATTICE2018) -
Weak Decays and Matrix Elements
Heavy quark scaling of B→πℓν form factors with Möbius domain wall fermions
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Published on:
May 29, 2019
Abstract
We report on the progress of our calculation of form factors for the exclusive semileptonic decay of B mesons to pions on 2+1 flavour lattices with spacings from 0.080 fm down to 0.044 fm. Using the Mobius domain wall fermion action for all quarks, we simulate pions with masses down to 230 MeV and extrapolate to the physical bottom quark mass by utilizing a range of heavy quark masses up to 2.44 times the mass of the charm quark. We discuss the dependence on the pion mass, heavy quark mass and lattice spacing in our form factors results.
DOI: https://doi.org/10.22323/1.334.0274
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.