Non-perturbative renormalisation of four
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D. Bec´irevic´; V. Gime´nez; V. Lubicz; G. Martinelli; M. Papinutto; J. Reyes
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Article
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2003
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Elsevier Science
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English
⚖ 251 KB
We present new results for the renormalisation and subtraction constants for the four fermion AF = 2 operators, computed non-perturbatively in the RI-MOM scheme (in the Landau gauge). From our preliminary analysis of the lattice data at p = 6.45, for the B" -B" mixing bag-parameter we obtain BEG' =