Scaling behavior of f_B with Lattice NRQCD
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概要
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We present quenched lattice results for f_B at β = 5.7,5.9, and 6.1 employing NRQCD action for heavy quark and clover action for light quark. We observed that the dependence of f_B on lattice spacing a is significantly reduced by including mixing effect at O(α_s) for lattice axial vector current. In the quenched approximation we find f_B = 0.162(16) [GeV], f_B, = 0.190(17) [GeV], and f_B,/f_B = 1.18(6). These are preliminary.
- 素粒子論グループ 素粒子研究編集部の論文
- 1999-01-20