The 39th International Symposium on Lattice Field Theory (Lattice 2022)

B-meson semileptonic decays with highly improved staggered quarks

10 Aug 2022, 16:30

20m

CP1-HSZ/1.002 (CP1-HSZ) - HS6 (CP1-HSZ)

Oral Presentation Weak Decays and Matrix Elements Weak Decays and Matrix Elements

Speaker

Andrew Lytle (University of Illinois at Urbana-Champaign)

Description

In this talk we present results on B-meson semileptonic decays using the highly improved staggered quark (HISQ) action for both valence and 2+1+1 sea quarks. The use of the highly improved action, combined with the MILC collaboration's gauge ensembles with lattice spacings down to ~0.03 fm, allows the b quark to be treated with the same discretization as the lighter quarks. The talk will focus on updated results for $B_{(s)}\to D_{(s)}$, $B_{(s)}\to K$, and $B\to \pi$ scalar and vector form factors.

Presentation materials

Lytle_Latt22.pdf