B-physics from HQET in two-flavour lattice QCD

B-physics from HQET in two-flavour lattice QCD
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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
R. Sommer
中科院分区:
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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

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我们用非微扰匹配重夸克有效理论(HQET)分析了CLS系综上Nf=2晶格QCD中的B物理量。使用全对全传播子、HYP涂抹的静态夸克和具有保守平台选择过程的广义本征值问题(GEVP)方法,我们能够系统地控制所有误差源。与去年相比,我们的初步结果是mb(Mb)=4:22(10)(4)zGeV,fb=193(9)Stat(4)c MeV,Fbs=219(12)Stat MeV。
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.
两种风味QCD的奇异夸克质量和Lambda参数
DOI: 10.1016/j.nuclphysb.2012.07.026
发表时间: 2012
期刊: Nuclear Physics
影响因子: --
作者:
Fritzsch;Knechtli;Marinkovic;Schaefer;Sommer;Virotta
通讯作者: Virotta