Heavy-light decay constants with dynamical gauge configurations and Wilson or improved valence quark actions

C. Bernard; T. DeGrand; C. DeTar; Steven Gottlieb; Urs M. Heller; J. Hetrick; C. McNeile; K. Orginos; R. Sugar; D. Toussaint

doi:10.1016/s0920-5632(00)91650-5

Heavy-light decay constants with dynamical gauge configurations and Wilson or improved valence quark actions

C. Bernard, T. DeGrand, C. DeTar, Steven Gottlieb, Urs M. Heller, J. Hetrick, C. McNeile, K. Orginos, R. Sugar, D. Toussaint

Physics

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21 Scopus citations

Abstract

We describe a calculation of heavy-light decay constants including virtual quark loop effects. We have generated dynamical gauge configurations at three β values using two flavors of Kogut-Susskind quarks with a range of masses. These are analyzed with a Wilson valence quark action. Preliminary results based on a "fat-link" clover valence quark action are also reported. Results from the two methods differ by 30 to 50 MeV, which is presumably due to significant - but as yet unobserved - lattice spacing dependence in one or both of the approaches.

Original language	English (US)
Pages (from-to)	289-291
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	83-84
Issue number	1-3
DOIs	https://doi.org/10.1016/s0920-5632(00)91650-5
State	Published - Mar 2000

ASJC Scopus subject areas

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

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10.1016/s0920-5632(00)91650-5

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title = "Heavy-light decay constants with dynamical gauge configurations and Wilson or improved valence quark actions",

abstract = "We describe a calculation of heavy-light decay constants including virtual quark loop effects. We have generated dynamical gauge configurations at three β values using two flavors of Kogut-Susskind quarks with a range of masses. These are analyzed with a Wilson valence quark action. Preliminary results based on a {"}fat-link{"} clover valence quark action are also reported. Results from the two methods differ by 30 to 50 MeV, which is presumably due to significant - but as yet unobserved - lattice spacing dependence in one or both of the approaches.",

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

note = "Funding Information: fB' =1.12(1)(51(+~1; fD'.=l.11(0)/+%t+l ~ Is f~ ~-5,,-3J The errors are statistical, systematic (within the NF = 2 {"}world{"}), and systematic (due to the missing dynamical strange quark), respectively. This work was supported by the DOE and NSF.",

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doi = "10.1016/s0920-5632(00)91650-5",

language = "English (US)",

volume = "83-84",

pages = "289--291",

journal = "Nuclear Physics B - Proceedings Supplements",

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TY - JOUR

T1 - Heavy-light decay constants with dynamical gauge configurations and Wilson or improved valence quark actions

AU - Bernard, C.

AU - DeGrand, T.

AU - DeTar, C.

AU - Gottlieb, Steven

AU - Heller, Urs M.

AU - Hetrick, J.

AU - McNeile, C.

AU - Orginos, K.

AU - Sugar, R.

AU - Toussaint, D.

N1 - Funding Information: fB' =1.12(1)(51(+~1; fD'.=l.11(0)/+%t+l ~ Is f~ ~-5,,-3J The errors are statistical, systematic (within the NF = 2 "world"), and systematic (due to the missing dynamical strange quark), respectively. This work was supported by the DOE and NSF.

PY - 2000/3

Y1 - 2000/3

N2 - We describe a calculation of heavy-light decay constants including virtual quark loop effects. We have generated dynamical gauge configurations at three β values using two flavors of Kogut-Susskind quarks with a range of masses. These are analyzed with a Wilson valence quark action. Preliminary results based on a "fat-link" clover valence quark action are also reported. Results from the two methods differ by 30 to 50 MeV, which is presumably due to significant - but as yet unobserved - lattice spacing dependence in one or both of the approaches.

AB - We describe a calculation of heavy-light decay constants including virtual quark loop effects. We have generated dynamical gauge configurations at three β values using two flavors of Kogut-Susskind quarks with a range of masses. These are analyzed with a Wilson valence quark action. Preliminary results based on a "fat-link" clover valence quark action are also reported. Results from the two methods differ by 30 to 50 MeV, which is presumably due to significant - but as yet unobserved - lattice spacing dependence in one or both of the approaches.

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U2 - 10.1016/s0920-5632(00)91650-5

DO - 10.1016/s0920-5632(00)91650-5

M3 - Article

AN - SCOPUS:0034147240

SN - 0920-5632

VL - 83-84

SP - 289

EP - 291

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - 1-3

ER -

Heavy-light decay constants with dynamical gauge configurations and Wilson or improved valence quark actions

Abstract

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