Leptonic decay constants fDs and fD in three flavor lattice QCD

J. N. Simone, C. Aubin, C. Bernard, C. DeTar, M. di Pierro, A. X. El-Khadra, Steven Gottlieb, E. B. Gregory, U. M. Heller, J. E. Hetrick, A. S. Kronfeld, P. B. Mackenzie, D. P. Menscher, M. Nobes, M. Okamoto, M. B. Oktay, J. Osborn, R. Sugar, William D Toussaint, H. D. Trottier

Research output: Contribution to journalArticle

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Abstract

We determine the leptonic decay constants fDs and fD in three flavor unquenched lattice QCD. We use O(a2)-improved sraggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are fDs = 263-9+5 ± 24 MeV and fD = 225-13+11 ± 21 MeV. In each case, the first reported error is statistical while the second is the combined systematic uncertainty.

Original languageEnglish (US)
Pages (from-to)443-445
Number of pages3
JournalNuclear Physics B (Proceedings Supplements)
Volume140
Issue numberSPEC. ISS.
DOIs
StatePublished - Mar 2005

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quantum chromodynamics
quarks
decay
spacing
formalism

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Simone, J. N., Aubin, C., Bernard, C., DeTar, C., di Pierro, M., El-Khadra, A. X., ... Trottier, H. D. (2005). Leptonic decay constants fDs and fD in three flavor lattice QCD. Nuclear Physics B (Proceedings Supplements), 140(SPEC. ISS.), 443-445. https://doi.org/10.1016/j.nuclphysbps.2004.11.245

Leptonic decay constants fDs and fD in three flavor lattice QCD. / Simone, J. N.; Aubin, C.; Bernard, C.; DeTar, C.; di Pierro, M.; El-Khadra, A. X.; Gottlieb, Steven; Gregory, E. B.; Heller, U. M.; Hetrick, J. E.; Kronfeld, A. S.; Mackenzie, P. B.; Menscher, D. P.; Nobes, M.; Okamoto, M.; Oktay, M. B.; Osborn, J.; Sugar, R.; Toussaint, William D; Trottier, H. D.

In: Nuclear Physics B (Proceedings Supplements), Vol. 140, No. SPEC. ISS., 03.2005, p. 443-445.

Research output: Contribution to journalArticle

Simone, JN, Aubin, C, Bernard, C, DeTar, C, di Pierro, M, El-Khadra, AX, Gottlieb, S, Gregory, EB, Heller, UM, Hetrick, JE, Kronfeld, AS, Mackenzie, PB, Menscher, DP, Nobes, M, Okamoto, M, Oktay, MB, Osborn, J, Sugar, R, Toussaint, WD & Trottier, HD 2005, 'Leptonic decay constants fDs and fD in three flavor lattice QCD', Nuclear Physics B (Proceedings Supplements), vol. 140, no. SPEC. ISS., pp. 443-445. https://doi.org/10.1016/j.nuclphysbps.2004.11.245
Simone JN, Aubin C, Bernard C, DeTar C, di Pierro M, El-Khadra AX et al. Leptonic decay constants fDs and fD in three flavor lattice QCD. Nuclear Physics B (Proceedings Supplements). 2005 Mar;140(SPEC. ISS.):443-445. https://doi.org/10.1016/j.nuclphysbps.2004.11.245
Simone, J. N. ; Aubin, C. ; Bernard, C. ; DeTar, C. ; di Pierro, M. ; El-Khadra, A. X. ; Gottlieb, Steven ; Gregory, E. B. ; Heller, U. M. ; Hetrick, J. E. ; Kronfeld, A. S. ; Mackenzie, P. B. ; Menscher, D. P. ; Nobes, M. ; Okamoto, M. ; Oktay, M. B. ; Osborn, J. ; Sugar, R. ; Toussaint, William D ; Trottier, H. D. / Leptonic decay constants fDs and fD in three flavor lattice QCD. In: Nuclear Physics B (Proceedings Supplements). 2005 ; Vol. 140, No. SPEC. ISS. pp. 443-445.
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abstract = "We determine the leptonic decay constants fDs and fD in three flavor unquenched lattice QCD. We use O(a2)-improved sraggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are fDs = 263-9+5 ± 24 MeV and fD = 225-13+11 ± 21 MeV. In each case, the first reported error is statistical while the second is the combined systematic uncertainty.",
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AU - Simone, J. N.

AU - Aubin, C.

AU - Bernard, C.

AU - DeTar, C.

AU - di Pierro, M.

AU - El-Khadra, A. X.

AU - Gottlieb, Steven

AU - Gregory, E. B.

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Kronfeld, A. S.

AU - Mackenzie, P. B.

AU - Menscher, D. P.

AU - Nobes, M.

AU - Okamoto, M.

AU - Oktay, M. B.

AU - Osborn, J.

AU - Sugar, R.

AU - Toussaint, William D

AU - Trottier, H. D.

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AB - We determine the leptonic decay constants fDs and fD in three flavor unquenched lattice QCD. We use O(a2)-improved sraggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are fDs = 263-9+5 ± 24 MeV and fD = 225-13+11 ± 21 MeV. In each case, the first reported error is statistical while the second is the combined systematic uncertainty.

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