The decay constants fB and fD+ from three-flavor lattice QCD

C. Bernard; C. DeTar; M. Di Pierro; A. X. El-Khadra; R. T. Evans; E. Freeland; E. Gamiz; Steven Gottlieb; U. M. Heller; J. E. Hetrick; R. Jain; A. S. Kronfeld; J. Laiho; L. Levkova; P. B. Mackenzie; D. Renner; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van De Water

The decay constants f_B and f_D+ from three-flavor lattice QCD

C. Bernard, C. DeTar, M. Di Pierro, A. X. El-Khadra, R. T. Evans, E. Freeland, E. Gamiz, Steven Gottlieb, U. M. Heller, J. E. Hetrick, R. Jain, A. S. Kronfeld, J. Laiho, L. Levkova, P. B. Mackenzie, D. Renner, J. N. Simone, R. Sugar, D. Toussaint, R. S. Van De Water

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

6 Scopus citations

Abstract

We present new preliminary results for the leptonic decay constants f_B and f_D+ determined in 2 + 1 flavor lattice QCD at lattice spacings a = 0.09, 0.12 and 0.15 fm. Results are obtained using the MILC Collaboration gauge configuration ensembles, clover heavy quarks in the Fermilab interpretation and improved staggered light quarks. Decay constants, computed at partially quenched combinations of the valence and sea light quark masses, are used to determine the low-energy parameters of staggered chiral perturbation theory. The physical decay constants are found in an extrapolation using the parameterized chiral formula.

Original language	English (US)
Article number	370
Journal	Proceedings of Science
Volume	42
State	Published - 2007
Externally published	Yes
Event	25th International Symposium on Lattice Field Theory, LATTICE 2007 - Regensburg, Germany Duration: Jul 30 2007 → Aug 4 2007

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Bernard, C., DeTar, C., Di Pierro, M., El-Khadra, A. X., Evans, R. T., Freeland, E., Gamiz, E., Gottlieb, S., Heller, U. M., Hetrick, J. E., Jain, R., Kronfeld, A. S., Laiho, J., Levkova, L., Mackenzie, P. B., Renner, D., Simone, J. N., Sugar, R., Toussaint, D., & Van De Water, R. S. (2007). The decay constants f_B and f_D+ from three-flavor lattice QCD. Proceedings of Science, 42, Article 370.

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title = "The decay constants fB and fD+ from three-flavor lattice QCD",

abstract = "We present new preliminary results for the leptonic decay constants fB and fD+ determined in 2 + 1 flavor lattice QCD at lattice spacings a = 0.09, 0.12 and 0.15 fm. Results are obtained using the MILC Collaboration gauge configuration ensembles, clover heavy quarks in the Fermilab interpretation and improved staggered light quarks. Decay constants, computed at partially quenched combinations of the valence and sea light quark masses, are used to determine the low-energy parameters of staggered chiral perturbation theory. The physical decay constants are found in an extrapolation using the parameterized chiral formula.",

author = "C. Bernard 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 D. Renner and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van De Water}, {R. S.}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 25th International Symposium on Lattice Field Theory, LATTICE 2007 ; Conference date: 30-07-2007 Through 04-08-2007",

year = "2007",

language = "English (US)",

volume = "42",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - The decay constants fB and fD+ from three-flavor lattice QCD

AU - Bernard, C.

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 - Renner, D.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van De Water, R. S.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2007

Y1 - 2007

N2 - We present new preliminary results for the leptonic decay constants fB and fD+ determined in 2 + 1 flavor lattice QCD at lattice spacings a = 0.09, 0.12 and 0.15 fm. Results are obtained using the MILC Collaboration gauge configuration ensembles, clover heavy quarks in the Fermilab interpretation and improved staggered light quarks. Decay constants, computed at partially quenched combinations of the valence and sea light quark masses, are used to determine the low-energy parameters of staggered chiral perturbation theory. The physical decay constants are found in an extrapolation using the parameterized chiral formula.

AB - We present new preliminary results for the leptonic decay constants fB and fD+ determined in 2 + 1 flavor lattice QCD at lattice spacings a = 0.09, 0.12 and 0.15 fm. Results are obtained using the MILC Collaboration gauge configuration ensembles, clover heavy quarks in the Fermilab interpretation and improved staggered light quarks. Decay constants, computed at partially quenched combinations of the valence and sea light quark masses, are used to determine the low-energy parameters of staggered chiral perturbation theory. The physical decay constants are found in an extrapolation using the parameterized chiral formula.

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UR - http://www.scopus.com/inward/citedby.url?scp=85055441604&partnerID=8YFLogxK

M3 - Conference Article

AN - SCOPUS:85055441604

SN - 1824-8039

VL - 42

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 370

T2 - 25th International Symposium on Lattice Field Theory, LATTICE 2007

Y2 - 30 July 2007 through 4 August 2007

ER -

The decay constants f_B and f_D+ from three-flavor lattice QCD

Abstract

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