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Volume 363 - 37th International Symposium on Lattice Field Theory (LATTICE2019) - Main session
An exploratory study of heavy-light semileptonic form factors using distillation
F. Erben,* P.A. Boyle, M. Marshall, F. Ó hÓgáin, A. Portelli, J.T. Tsang
*corresponding author
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Pre-published on: 2020 January 04
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We present our exploratory study with the aim of simulating heavy-light semileptonic form factors as part of the RBC-UKQCD charm (to bottom) physics programme. We are using a distillation-based setup as a strategy to get optimised plateaus in semileptonic $D_{(s)}$ and $B_{(s)}$ decays, and compare our results to form factors obtained from sequential $Z_2$-Wall
propagators. The study is done in a centre-of-mass frame as well as in several moving frames. We use an $N_f=2+1$ domain wall fermion ensemble with a pion mass of $340$ MeV, with the aim of extending the study to a variety of other domain-wall ensembles, including physical-pion mass ensembles.
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