Current Renormalisation in NRQCD for Semi-leptonic B → D Decays
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چکیده
We present a calculation of the renormalisation constants for the temporal vector current, ZV0 and spatial axial current, ZAk , to O( αs M ) for B → D transitions using the O( 1 M ) NRQCD action for both b and c quarks evaluated for a large range of mass parameters. Considerations for the renormalisation of the spatial vector current and the temporal axial current are discussed and initial results for a mixed lattice current are presented for the spatial vector current.
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تاریخ انتشار 1998