$O(α_{s}a)$ matching coefficients for axial vector current and $ΔB$$=$2 operator

Details $O(α_{s}a)$ matching coefficients for axial vector current and $ΔB$$=$2 operator $O(α_{s}a)$ matching coefficients for axial vector current and $ΔB$$=$2 operator

1999-09-28

arxiv.org/abs/hep-lat/9909159v1

Nucl.Phys.Proc.Suppl. 83 (2000) 301-303

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE99 (Heavy Quarks), 3 pages, 2 figures, espcrc2.sty

Scientific paper

We present a calculation of the perturbative matching coefficients including mixing with higher dimensional operators for the temporal component of the heavy-light axial current, $A_{4}$, and the $\Delta B=2$ operator, $O_S$. For $A_{4}^{\scriptsize static, NRQCD}$, calculations with various RG-improved gauge actions are peformed. Matching coefficients with NRQCD and heavy-clover actions are also compared.

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