Lattice results for the decay constant of heavy-light vector mesons

Claude Bernard; Peter Williams; Saumen Datta; Steven Gottlieb; Carleton Detar; Urs M. Heller; Craig McNeile; Kostas Orginos; Robert Sugar; Doug Toussaint

doi:10.1103/PhysRevD.65.014510

Lattice results for the decay constant of heavy-light vector mesons

Claude Bernard, Peter Williams, Saumen Datta, Steven Gottlieb, Carleton Detar, Urs M. Heller, Craig McNeile, Kostas Orginos, Robert Sugar, Doug Toussaint

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

15 Scopus citations

Abstract

We compute the leptonic decay constants of heavy-light vector mesons in the quenched approximation. The reliability of lattice computations for heavy quarks is checked by comparing the ratio of vector to pseudoscalar decay constant with the prediction of heavy quark effective theory in the limit of an infinitely heavy quark mass. Good agreement is found. We then calculate the decay constant ratio for B mesons: f_B*/f_B = 1.01(0.01)(_-0.01^+0.04). We also quote quenched f _B* = 177(6)(17) MeV.

Original language	English (US)
Article number	014510
Journal	Physical Review D
Volume	65
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.65.014510
State	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.65.014510

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title = "Lattice results for the decay constant of heavy-light vector mesons",

abstract = "We compute the leptonic decay constants of heavy-light vector mesons in the quenched approximation. The reliability of lattice computations for heavy quarks is checked by comparing the ratio of vector to pseudoscalar decay constant with the prediction of heavy quark effective theory in the limit of an infinitely heavy quark mass. Good agreement is found. We then calculate the decay constant ratio for B mesons: fB*/fB = 1.01(0.01)(-0.01+0.04). We also quote quenched f B* = 177(6)(17) MeV.",

author = "Claude Bernard and Peter Williams and Saumen Datta and Steven Gottlieb and Carleton Detar and Heller, {Urs M.} and Craig McNeile and Kostas Orginos and Robert Sugar and Doug Toussaint",

year = "2002",

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T1 - Lattice results for the decay constant of heavy-light vector mesons

AU - Bernard, Claude

AU - Williams, Peter

AU - Datta, Saumen

AU - Gottlieb, Steven

AU - Detar, Carleton

AU - Heller, Urs M.

AU - McNeile, Craig

AU - Orginos, Kostas

AU - Sugar, Robert

AU - Toussaint, Doug

PY - 2002

Y1 - 2002

N2 - We compute the leptonic decay constants of heavy-light vector mesons in the quenched approximation. The reliability of lattice computations for heavy quarks is checked by comparing the ratio of vector to pseudoscalar decay constant with the prediction of heavy quark effective theory in the limit of an infinitely heavy quark mass. Good agreement is found. We then calculate the decay constant ratio for B mesons: fB*/fB = 1.01(0.01)(-0.01+0.04). We also quote quenched f B* = 177(6)(17) MeV.

AB - We compute the leptonic decay constants of heavy-light vector mesons in the quenched approximation. The reliability of lattice computations for heavy quarks is checked by comparing the ratio of vector to pseudoscalar decay constant with the prediction of heavy quark effective theory in the limit of an infinitely heavy quark mass. Good agreement is found. We then calculate the decay constant ratio for B mesons: fB*/fB = 1.01(0.01)(-0.01+0.04). We also quote quenched f B* = 177(6)(17) MeV.

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JF - Physical Review D

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ER -

Lattice results for the decay constant of heavy-light vector mesons

Abstract

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