B -> D* l nu at zero recoil: an update
Jon A. Bailey, A. Bazavov, C. Bernard, C.M. Bouchard, C. DeTar, A.X., El-Khadra, E.D. Freeland, E. G\'amiz, Steven Gottlieb, U.M. Heller, J.E., Hetrick, A.S. Kronfeld, J. Laiho, L. Levkova, P.B. Mackenzie, M.B. Oktay,, J.N. Simone, R. Sugar, D. Toussaint, R.S. Van de Water
TL;DR
This paper updates the lattice QCD calculation of the B to D* form factor at zero recoil, achieving higher precision with improved statistics and finer lattices, crucial for precise determination of CKM matrix elements.
Contribution
It provides an improved, more precise lattice QCD calculation of the B to D* form factor at zero recoil, incorporating higher statistics and finer lattice spacing.
Findings
Reduced uncertainty on F(1) from 2.6% to 1.7%
Unblinded result presented at CKM workshop
Utilizes improved lattice actions and ensembles
Abstract
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced Optical Sensing Technologies · Parallel Computing and Optimization Techniques