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Title: Lattice calculation of SU(3) flavor breaking ratios in B{sup 0}-B{sup 0} mixing

Abstract

We present an unquenched lattice calculation for the SU(3) flavor breaking ratios of the heavy-light decay constants and the {delta}B=2 matrix elements. The calculation was performed on 16{sup 3}x32 lattices with two dynamical flavors of domain-wall quarks and inverse lattice spacing 1/a=1.69(5) GeV. Heavy quarks were implemented using an improved lattice formulation of the static approximation. In the infinite heavy-quark mass limit we obtain f{sub B{sub s}}/f{sub B{sub d}}=1.29(4)(6), B{sub B{sub s}}/B{sub B{sub d}}=1.06(6)(4), {xi}=1.33(8)(8) where the first error is statistical and the second systematic.

Authors:
;  [1]
  1. Physics Department, Columbia University, New York, New York 10027 (United States)
Publication Date:
OSTI Identifier:
20774445
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.72.114504; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; B NEUTRAL MESONS; B QUARKS; C QUARKS; ERRORS; FLAVOR MODEL; GEV RANGE; LATTICE FIELD THEORY; MATRIX ELEMENTS; PARTICLE DECAY; REST MASS; SU-3 GROUPS; SYMMETRY BREAKING; T QUARKS

Citation Formats

Gadiyak, Valeriya, and Loktik, Oleg. Lattice calculation of SU(3) flavor breaking ratios in B{sup 0}-B{sup 0} mixing. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.114504.
Gadiyak, Valeriya, & Loktik, Oleg. Lattice calculation of SU(3) flavor breaking ratios in B{sup 0}-B{sup 0} mixing. United States. doi:10.1103/PhysRevD.72.114504.
Gadiyak, Valeriya, and Loktik, Oleg. Thu . "Lattice calculation of SU(3) flavor breaking ratios in B{sup 0}-B{sup 0} mixing". United States. doi:10.1103/PhysRevD.72.114504.
@article{osti_20774445,
title = {Lattice calculation of SU(3) flavor breaking ratios in B{sup 0}-B{sup 0} mixing},
author = {Gadiyak, Valeriya and Loktik, Oleg},
abstractNote = {We present an unquenched lattice calculation for the SU(3) flavor breaking ratios of the heavy-light decay constants and the {delta}B=2 matrix elements. The calculation was performed on 16{sup 3}x32 lattices with two dynamical flavors of domain-wall quarks and inverse lattice spacing 1/a=1.69(5) GeV. Heavy quarks were implemented using an improved lattice formulation of the static approximation. In the infinite heavy-quark mass limit we obtain f{sub B{sub s}}/f{sub B{sub d}}=1.29(4)(6), B{sub B{sub s}}/B{sub B{sub d}}=1.06(6)(4), {xi}=1.33(8)(8) where the first error is statistical and the second systematic.},
doi = {10.1103/PhysRevD.72.114504},
journal = {Physical Review. D, Particles Fields},
number = 11,
volume = 72,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2005},
month = {Thu Dec 01 00:00:00 EST 2005}
}