B-physics from HQET in two-flavour lattice QCD
B-physics from HQET in two-flavour lattice QCD
复制标题
双味晶格 QCD 中 HQET 的 B 物理
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
R. Sommer
中科院分区:
文献类型:
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作者:
F. Bernardoni;B. Blossier;J. Bulava;M. Morte;P. Fritzsch;N. Garron;A. G'erardin;J. Heitger;G. Hippel;H. Simma;R. Sommer
We present our analysis of B physics quantities using non-perturbatively matched Heavy Quark Effective Theory (HQET) in Nf = 2 lattice QCD on the CLS ensembles. Using all-to-all propagators, HYP-smeared static quarks, and the Generalized Eigenvalue Problem (GEVP) approach with a conservative plateau selection procedure, we are able to systematically control all sources of error. With significantly increased statistics compared to last year, our preliminary results are mb(mb) = 4:22(10)(4)z GeV for the MS b-quark mass, and fB = 193(9)stat(4)c MeV and fBs = 219(12)stat MeV for the B-meson decay constants.
DOI:
10.1016/j.nuclphysb.2012.07.026
发表时间:
2012
期刊:
Nuclear Physics
影响因子:
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作者:
Fritzsch;Knechtli;Marinkovic;Schaefer;Sommer;Virotta
通讯作者:
Virotta