4 papers · 1 filter
B^0_s and B^0 Mixing in the Standard Model and Beyond: A Progress Report
C. Bouchard, A. X. El-Khadra, E. D. Freeland +2
We give a progress report on the calculation of B meson mixing matrix elements, focusing on contributions that could arise beyond the Standard Model. The calculation uses asqtad (l…
Electromagnetic Corrections in Staggered Chiral Perturbation Theory
C. Bernard, E. D. Freeland
To reduce errors in light-quark mass determinations, it is now necessary to consider electromagnetic contributions to light-meson masses. Calculations using staggered quarks and qu…
Semileptonic decays of K and D mesons in 2+1 flavor QCD
Jon A. Bailey, A. Bazavov, C. Bernard +17
The experimentally measured rates of the semileptonic decays K -> pi l nu and D -> K(pi) l nu can be combined with lattice calculations of the associated form factors to precisely…
B -> D* l nu at zero recoil: an update
Jon A. Bailey, A. Bazavov, C. Bernard +17
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 a…