Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2010-11-09
PoS Lattice2010:311,2010
Physics
High Energy Physics
High Energy Physics - Lattice
7 pp., 2 figs, presented at Lattice 2010, June 14-19, 2010, Villasimius, Italy
Scientific paper
We present an update of our calculation of the form factor for B -> D* l nu at zero recoil, with higher statistics and finer lattices. As before, we use the Fermilab action for b and c quarks, the asqtad staggered action for light valence quarks, and the MILC ensembles for gluons and light quarks (L\"uscher-Weisz married to 2+1 rooted staggered sea quarks). In this update, we have reduced the total uncertainty on F(1) from 2.6% to 1.7%. At Lattice2010 we presented a still-blinded result, but this writeup includes the unblinded result from the September 2010 CKM workshop.
Bailey Jon A.
Bazavov Alexei
Bernard Claude
Bouchard C. M.
de Water Ruth S. Van
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