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Non-perturbative renormalisation of the lattice ΔS = 2 four-fermion operator

✍ Scribed by A Donini; G Martinelli; C.T Sachrajda; M Talevi; A Vladikas


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
945 KB
Volume
360
Category
Article
ISSN
0370-2693

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Non-perturbative renormalisation of four
✍ D. Bec´irevic´; V. Gime´nez; V. Lubicz; G. Martinelli; M. Papinutto; J. Reyes 📂 Article 📅 2003 🏛 Elsevier Science 🌐 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' =