Progress Calculating Decay Constants with NRQCD and AsqTad Actions

Matthew Wingate; Christine Davies; Alan Gray; Emel Gulez; G. Peter Lepage; Junko Shigemitsu

doi:10.1016/S0920-5632(03)02570-2

Progress Calculating Decay Constants with NRQCD and AsqTad Actions

Matthew Wingate, Christine Davies, Alan Gray, Emel Gulez, G. Peter Lepage, Junko Shigemitsu

School of Physics and Astronomy

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

Abstract

We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for $f_{B_s}$ and $f_{D_s}$ are given and status of the chiral extrapolation to $f_B$ is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.

Original language	English
Pages (from-to)	325–327
Journal	Nuclear Physics B - Proceedings Supplements
Volume	129-130
DOIs	https://doi.org/10.1016/S0920-5632(03)02570-2
Publication status	Published - 15 Sept 2003

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title = "Progress Calculating Decay Constants with NRQCD and AsqTad Actions",

abstract = "We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for \$f\_\{B\_s\}\$ and \$f\_\{D\_s\}\$ are given and status of the chiral extrapolation to \$f\_B\$ is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.",

author = "Matthew Wingate and Christine Davies and Alan Gray and Emel Gulez and \{Peter Lepage\}, G. and Junko Shigemitsu",

note = "Talk delivered at Lattice2003(heavy), 3 pages",

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AU - Wingate, Matthew

AU - Davies, Christine

AU - Gray, Alan

AU - Gulez, Emel

AU - Peter Lepage, G.

AU - Shigemitsu, Junko

N1 - Talk delivered at Lattice2003(heavy), 3 pages

PY - 2003/9/15

Y1 - 2003/9/15

N2 - We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for $f_{B_s}$ and $f_{D_s}$ are given and status of the chiral extrapolation to $f_B$ is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.

AB - We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for $f_{B_s}$ and $f_{D_s}$ are given and status of the chiral extrapolation to $f_B$ is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.

U2 - 10.1016/S0920-5632(03)02570-2

DO - 10.1016/S0920-5632(03)02570-2

M3 - Article

SN - 0920-5632

VL - 129-130

SP - 325

EP - 327

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Progress Calculating Decay Constants with NRQCD and AsqTad Actions

Abstract

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