TY - JOUR
T1 - Semileptonic B to D decays at nonzero recoil with 2+1 flavors of improved staggered quarks
AU - (Fermilab Lattice and MILC Collaborations)
AU - Qiu, Si Wei
AU - DeTar, Carleton
AU - Du, Daping
AU - Kronfeld, Andreas S.
AU - Laiho, Jack
AU - Van de Water, Ruth S.
N1 - Funding Information:
Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, the National Energy Research Scientific Computing Center, and the Los Alamos National Laboratory, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Center for Supercomputing Applications and the National Institute for Computational Science, the Pittsburgh Supercomputer Center, the San Diego Supercomputer Center, and the Texas Advanced Computing Center, which are funded through the National Science Foundation’s Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40664 (D.D.), No. DE-FG02-91ER40677 (D.D), and No. DE-FC06-ER41446(C.D.); and in part by the U.S. National Science Foundation under grants PHY0757333 (C.D.) and PHY0903571 (S.-W.Q.). J.L. is supported by the STFC and by the Scottish Universities Physics Alliance. This manuscript has been co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. R.S.V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. D.D. was supported in part by the URA Visiting Scholars’ program at Fermilab. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
Funding Information:
Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, the National Energy Research Scientific Computing Center, and the Los Alamos National Laboratory, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Center for Supercomputing Applications and the National Institute for Computational Science, the Pittsburgh Supercomputer Center, the San Diego Supercomputer Center, and the Texas Advanced Computing Center, which are funded through the National Science Foundation’s Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40664 (D.D.), No. DE-FG02-91ER40677 (D.D), and No. DE-FC06-ER41446(C.D.); and in part by the U.S. National Science Foundation under grants PHY0757333 (C.D.) and PHY0903571
Funding Information:
(S.-W.Q.). J.L. is supported by the STFC and by the Scottish Universities Physics Alliance. This manuscript has been co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. R.S.V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. D.D. was supported in part by the URA Visiting Scholars’ program at Fermilab. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
Publisher Copyright:
© Copyright owned by the author(s).
PY - 2011
Y1 - 2011
N2 - The Fermilab Lattice-MILC collaboration is completing a comprehensive program of heavy-light physics on the MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as 0.045 fm and light-to-strange-quark mass ratios as low as 1/20. We use the Fermilab interpretation of the clover action for heavy valence quarks and the asqtad action for light valence quarks. The central goal of the program is to provide ever more exacting tests of the unitarity of the CKM matrix. We give a progress report on one part of the program, namely the analysis of the semileptonic decay B to D at both zero and nonzero recoil. Although final results are not presented, we discuss improvements in the analysis methods, the statistical errors, and the parameter coverage that we expect will lead to a significant reduction in the final error for |Vcb| from this decay channel.
AB - The Fermilab Lattice-MILC collaboration is completing a comprehensive program of heavy-light physics on the MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as 0.045 fm and light-to-strange-quark mass ratios as low as 1/20. We use the Fermilab interpretation of the clover action for heavy valence quarks and the asqtad action for light valence quarks. The central goal of the program is to provide ever more exacting tests of the unitarity of the CKM matrix. We give a progress report on one part of the program, namely the analysis of the semileptonic decay B to D at both zero and nonzero recoil. Although final results are not presented, we discuss improvements in the analysis methods, the statistical errors, and the parameter coverage that we expect will lead to a significant reduction in the final error for |Vcb| from this decay channel.
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M3 - Conference article
AN - SCOPUS:84875060836
SN - 1824-8039
VL - 139
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011
Y2 - 10 July 2011 through 16 July 2011
ER -