Abstract

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BD* l ν with 2+1 flavors

Presenter: Jack Laiho — Fermilab

Jack Laiho for the Fermilab lattice and MILC collaborations

We present a calculation of the form factor for BD* l ν using a 2+1 improved staggered action for the light quarks (on the MILC configurations), and the Fermilab action for the heavy quarks. The form factor is computed at zero recoil using a new double ratio method which yields the form factor more directly than previous approaches.