Nonperturbative renormalization of four fermion operators and B0 - anti-B0 mixing with Wilson fermions
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Nonperturbative renormalization of four fermion operators and B0 - anti-B0 mixing with Wilson fermions

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Nonperturbative renormalization of four fermion operators and B0 - anti-B0 mixing with Wilson fermions

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Becirevic, D.; Giménez Gómez, Vicente; Lubicz, V.; Martinelli, Guido; Papinutto, Mauro; Reyes Gámez, Juan
This document is a artículoDate2003

Este documento está disponible también en : http://hdl.handle.net/10550/38977
We present new results for the renormalisation and subtraction constants for the four fermion DeltaF = 2 operators, computed non-perturbatively in the RI-MOM scheme (in the Landau gauge). From our preliminary analysis of the lattice data at beta = 6.45, for the B-0 - B-0,mixing bag-parameter we obtain B-B(RGI) = 1.46(7)(1).

    Becirevic, D. Giménez Gómez, Vicente Lubicz, V. Martinelli, G. Papinutto, Mauro Reyes, J. 2003 Nonperturbative renormalization of four fermion operators and B0 - anti-B0 mixing with Wilson fermions Nuclear Physics B-Proceedings Supplements 119 619 621
http://dx.doi.org/10.1016/S0920-5632(03)01641-4

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