We calculate the form factors for the semileptonic decays Bs → Kℓv and B → Kℓℓ with lattice QCD. We work at several lattice spacings and a range of light quark masses, using the MILC 2+1-flavor asqtad ensembles. We use the Fermilab method for the b quark. We obtain chiralcontinuum extrapolations for EK up to ∼ 1:2 GeV and then extend to the entire kinematic range with the model-independent z expansion.
|Journal||Proceedings of Science|
|Publication status||Published - 2013|
|Event||31st International Symposium on Lattice Field Theory, LATTICE 2013 - Mainz, Germany|
Duration: 2013 Jul 29 → 2013 Aug 3
Bibliographical noteFunding Information:
∗Supported by the Ministry of Education under NRF Basic Science Grant No. 2013009149. †Speaker. ‡Operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the US DOE. §Operated by Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the US DOE.
This work was supported by the U.S. Department of Energy, the National Science Foundation, and the URA Visiting Scholars’ Program. Computations were carried out at the Argonne Leadership Computing Facility, the National Center for Atmospheric Research, the National Center for Supercomputing Resources, the National Energy Resources Supercomputing Center, the National Institute for Computational Sciences, the Texas Advanced Computing Center, and the USQCD facilities at Fermilab, under grants from the NSF and DOE.
All Science Journal Classification (ASJC) codes