B and D meson decay constants from 2+1 flavor improved staggered simulations

Fermilab Lattice and MILC Collaborations

B and D meson decay constants from 2+1 flavor improved staggered simulations

Fermilab Lattice and MILC Collaborations

Integrated Sciences and Engineering Division

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We give an update on simulation results for the decay constants f_B, f_Bs, f_D and f_Ds. These decay constants are important for precision tests of the standard model, in particular entering as inputs to the global CKM unitarity triangle fit. The results presented here make use of the MILC (2+1)-flavor asqtad ensembles, with heavy quarks incorporated using the clover action with the Fermilab method. Partially quenched, staggered chiral perturbation theory is used to extract the decay constants at the physical point. In addition, we give error projections for a new analysis in progress, based on an extended data set.

Original language	English
Journal	Proceedings of Science
Volume	139
Publication status	Published - 2011
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: 2011 Jul 10 → 2011 Jul 16

Bibliographical note

Funding Information:
puting 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 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-FC02-06ER41446 (C.D., L.L., M.B.O.), No. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (C.M.B, R.T.E., E.D.F., E.G., R.J., A.X.K.), No. DE-FG02-91ER40628 (C.B), No. DE-FG02-04ER-41298 (D.T.); by the National Science Foundation under Grants No. PHY-0555243, No. PHY-0757333, No. PHY-0703296 (C.D., L.L., M.B.O.), No. PHY-0757035 (R.S.), and No. PHY-0704171 (J.E.H.); by the URA Visiting Scholars’ program (C.M.B., R.T.E., E.G., M.B.O.); and by the Fermilab Fellowship in Theoretical Physics (C.M.B.). 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. 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).

All Science Journal Classification (ASJC) codes

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Cite this

@article{9e2e2c5b24cd47c5bc23c59729d070ca,

title = "B and D meson decay constants from 2+1 flavor improved staggered simulations",

abstract = "We give an update on simulation results for the decay constants fB, fBs, fD and fDs. These decay constants are important for precision tests of the standard model, in particular entering as inputs to the global CKM unitarity triangle fit. The results presented here make use of the MILC (2+1)-flavor asqtad ensembles, with heavy quarks incorporated using the clover action with the Fermilab method. Partially quenched, staggered chiral perturbation theory is used to extract the decay constants at the physical point. In addition, we give error projections for a new analysis in progress, based on an extended data set.",

author = "{Fermilab Lattice and MILC Collaborations} and Neil, {E. T.} and Bailey, {Jon A.} and A. Bazavov and C. Bernard and Bouchard, {C. M.} and C. DeTar and {Di Pierro}, M. and El-Khadra, {A. X.} and Evans, {R. T.} and E. Freeland and E. Gamiz and Steven Gottlieb and Heller, {U. M.} and Hetrick, {J. E.} and R. Jain and Kronfeld, {A. S.} and J. Laiho and L. Levkova and Mackenzie, {P. B.} and Oktay, {M. B.} and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van de Water}, {R. S.}",

note = "Funding Information: puting 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 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{\textquoteright}s Teragrid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FC02-06ER41446 (C.D., L.L., M.B.O.), No. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (C.M.B, R.T.E., E.D.F., E.G., R.J., A.X.K.), No. DE-FG02-91ER40628 (C.B), No. DE-FG02-04ER-41298 (D.T.); by the National Science Foundation under Grants No. PHY-0555243, No. PHY-0757333, No. PHY-0703296 (C.D., L.L., M.B.O.), No. PHY-0757035 (R.S.), and No. PHY-0704171 (J.E.H.); by the URA Visiting Scholars{\textquoteright} program (C.M.B., R.T.E., E.G., M.B.O.); and by the Fermilab Fellowship in Theoretical Physics (C.M.B.). 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. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

year = "2011",

language = "English",

volume = "139",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - B and D meson decay constants from 2+1 flavor improved staggered simulations

AU - Fermilab Lattice and MILC Collaborations

AU - Neil, E. T.

AU - Bailey, Jon A.

AU - Bazavov, A.

AU - Bernard, C.

AU - Bouchard, C. M.

AU - DeTar, C.

AU - Di Pierro, M.

AU - El-Khadra, A. X.

AU - Evans, R. T.

AU - Freeland, E.

AU - Gamiz, E.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Jain, R.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Levkova, L.

AU - Mackenzie, P. B.

AU - Oktay, M. B.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van de Water, R. S.

N1 - Funding Information: puting 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 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-FC02-06ER41446 (C.D., L.L., M.B.O.), No. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (C.M.B, R.T.E., E.D.F., E.G., R.J., A.X.K.), No. DE-FG02-91ER40628 (C.B), No. DE-FG02-04ER-41298 (D.T.); by the National Science Foundation under Grants No. PHY-0555243, No. PHY-0757333, No. PHY-0703296 (C.D., L.L., M.B.O.), No. PHY-0757035 (R.S.), and No. PHY-0704171 (J.E.H.); by the URA Visiting Scholars’ program (C.M.B., R.T.E., E.G., M.B.O.); and by the Fermilab Fellowship in Theoretical Physics (C.M.B.). 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. 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 - We give an update on simulation results for the decay constants fB, fBs, fD and fDs. These decay constants are important for precision tests of the standard model, in particular entering as inputs to the global CKM unitarity triangle fit. The results presented here make use of the MILC (2+1)-flavor asqtad ensembles, with heavy quarks incorporated using the clover action with the Fermilab method. Partially quenched, staggered chiral perturbation theory is used to extract the decay constants at the physical point. In addition, we give error projections for a new analysis in progress, based on an extended data set.

AB - We give an update on simulation results for the decay constants fB, fBs, fD and fDs. These decay constants are important for precision tests of the standard model, in particular entering as inputs to the global CKM unitarity triangle fit. The results presented here make use of the MILC (2+1)-flavor asqtad ensembles, with heavy quarks incorporated using the clover action with the Fermilab method. Partially quenched, staggered chiral perturbation theory is used to extract the decay constants at the physical point. In addition, we give error projections for a new analysis in progress, based on an extended data set.

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UR - http://www.scopus.com/inward/citedby.url?scp=84995292289&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84995292289

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 -

B and D meson decay constants from 2+1 flavor improved staggered simulations

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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