Four Fermion Operator Matching with NRQCD Heavy and AsqTad Light Quarks

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dc.creatorGamiz, Elvira
dc.creatorShigemitsu, Junko
dc.creatorTrottier, Howard
dc.date2008-04-09
dc.date.accessioned2026-07-07T11:33:33Z
dc.date.available2026-07-07T11:33:33Z
dc.descriptionWe present one-loop matching coefficients between continuum and lattice QCD for the heavy-light four-fermion operators relevant for neutral B meson mixing both within and beyond the Standard Model. For the lattice theory we use nonrelativistic QCD (NRQCD) to describe b quarks and improved staggered fermions (AsqTad) for light quarks. The gauge action is the tree-level Symanzik improved gauge action. Matching to full QCD is carried out through order alpha_s, Lambda_{QCD}/M_b, and alpha_s/(aM_b).
dc.description8 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0804.1557
dc.identifierhttp://arxiv.org/abs/0804.1557
dc.identifierPhys.Rev.D77:114505,2008
dc.identifierdoi:10.1103/PhysRevD.77.114505
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197935
dc.subjectHigh Energy Physics - Lattice
dc.titleFour Fermion Operator Matching with NRQCD Heavy and AsqTad Light Quarks
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