TY - JOUR
T1 - Kaon and D meson semileptonic form factors from lattice QCD
AU - Fermilab Lattice and MILC Collaborations
AU - Primer, Thomas
AU - Toussaint, Doug
AU - El-Khadra, Aida
AU - Gámiz, Elvira
AU - Simone, James
N1 - Funding Information:
This work was supported by the U.S. Department of Energy and National Science Foundation. Computation for this work was done at the Argonne Leadership Computing Facility (ALCF), the National Center for Atmospheric Research (UCAR), Bluewaters at the National Center for Supercomputing Resources (NCSA), the National Energy Resources Supercomputing Center (NERSC), the National Institute for Computational Sciences (NICS), the Texas Advanced Computing Center (TACC), and the USQCD facilities at Fermilab, under grants from the NSF and DOE. A.K. is support by the U.S. Department of Energy under Grant No. DE-FG02-13ER42001 and URA Visiting Scholars’ program. E.G. is supported in part by MINECO (Spain) under Grants No. FPA2010-16696 and No. FPA2006-05294; by Junta de Andalucía (Spain) under Grants No. FQM-101 and No. FQM-6552; and by the European Commission under Grant No. PCIG10-GA-2011-303781. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
PY - 2014
Y1 - 2014
N2 - We present the status of on-going calculations of the K → πlv and D→ K(π)lv semileptonic form factors at q2 = 0. These form factors are important for the determination of the CKM matrix elements |Vus| and |Vcs(d) | respectively. This work uses the HISQ action for both valence quarks and sea quarks on MILC Nf = 2+1 + 1 configurations. We employ twisted boundary conditions to calculate the form factors at zero momentum transfer directly. The K → π results are an update to previously published results with new data at the physical point. The D → K(π) results are preliminary.
AB - We present the status of on-going calculations of the K → πlv and D→ K(π)lv semileptonic form factors at q2 = 0. These form factors are important for the determination of the CKM matrix elements |Vus| and |Vcs(d) | respectively. This work uses the HISQ action for both valence quarks and sea quarks on MILC Nf = 2+1 + 1 configurations. We employ twisted boundary conditions to calculate the form factors at zero momentum transfer directly. The K → π results are an update to previously published results with new data at the physical point. The D → K(π) results are preliminary.
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M3 - Conference article
AN - SCOPUS:84990965751
SN - 1824-8039
VL - Part F130500
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 374
T2 - 32nd International Symposium on Lattice Field Theory, LATTICE 2014
Y2 - 23 June 2014 through 28 June 2014
ER -