Heavy-light decay constants with three dynamical flavors

C. Bernard; T. Burch; S. Datta; T. DeGrand; C. DeTar; Steven Gottlieb; Urs M. Heller; K. Orginos; R. Sugar; D. Toussaint

doi:10.1016/S0920-5632(01)01731-5

Heavy-light decay constants with three dynamical flavors

C. Bernard, T. Burch, S. Datta, T. DeGrand, C. DeTar, Steven Gottlieb, Urs M. Heller, K. Orginos, R. Sugar, D. Toussaint

Physics

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

10 Scopus citations

Abstract

We present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by m_ρ we find an increase of ≈ 23% in f_B with three dynamical flavors over the quenched case. Discretization errors appear to be small (≲3%) in the quenched case but have not yet been measured in the dynamical case.

Original language	English (US)
Pages (from-to)	412-414
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	106-107
DOIs	https://doi.org/10.1016/S0920-5632(01)01731-5
State	Published - Mar 2002

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/S0920-5632(01)01731-5

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title = "Heavy-light decay constants with three dynamical flavors",

abstract = "We present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by mρ we find an increase of ≈ 23% in fB with three dynamical flavors over the quenched case. Discretization errors appear to be small (≲3%) in the quenched case but have not yet been measured in the dynamical case.",

author = "C. Bernard and T. Burch and S. Datta and T. DeGrand and C. DeTar and Steven Gottlieb and Heller, {Urs M.} and K. Orginos and R. Sugar and D. Toussaint",

note = "Funding Information: We thank NPACI, The Alliance, PSC, NERSC, LANL, Indiana University, and Washington University (CSPC) for computing resources. This work was supported in part by the DOE and NSF.",

year = "2002",

month = mar,

doi = "10.1016/S0920-5632(01)01731-5",

language = "English (US)",

volume = "106-107",

pages = "412--414",

journal = "Nuclear Physics B - Proceedings Supplements",

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TY - JOUR

T1 - Heavy-light decay constants with three dynamical flavors

AU - Bernard, C.

AU - Burch, T.

AU - Datta, S.

AU - DeGrand, T.

AU - DeTar, C.

AU - Gottlieb, Steven

AU - Heller, Urs M.

AU - Orginos, K.

AU - Sugar, R.

AU - Toussaint, D.

N1 - Funding Information: We thank NPACI, The Alliance, PSC, NERSC, LANL, Indiana University, and Washington University (CSPC) for computing resources. This work was supported in part by the DOE and NSF.

PY - 2002/3

Y1 - 2002/3

N2 - We present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by mρ we find an increase of ≈ 23% in fB with three dynamical flavors over the quenched case. Discretization errors appear to be small (≲3%) in the quenched case but have not yet been measured in the dynamical case.

AB - We present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by mρ we find an increase of ≈ 23% in fB with three dynamical flavors over the quenched case. Discretization errors appear to be small (≲3%) in the quenched case but have not yet been measured in the dynamical case.

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DO - 10.1016/S0920-5632(01)01731-5

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VL - 106-107

SP - 412

EP - 414

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Heavy-light decay constants with three dynamical flavors

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