We discuss the improvement of local four-fermion operators and we present the one-loop perturbative calculation of their renormalization constants and mixing coefficients in the theory defined by a nearest-neighbour improved lattice action. This calculation is a necessary ingredient for improved Monte Carlo computations of hadronic matrix elements relevant for weak interactions.

Frezzotti, R., Gabrielli, E., Pittori, C., & Rossi, G.C. (1992). Four-fermion operators with improved nearest-neighbour action. NUCLEAR PHYSICS. B, 373(3), 781-794 [doi:10.1016/0550-3213(92)90276-H].

Four-fermion operators with improved nearest-neighbour action

FREZZOTTI, ROBERTO;ROSSI, GIANCARLO
1992

Abstract

We discuss the improvement of local four-fermion operators and we present the one-loop perturbative calculation of their renormalization constants and mixing coefficients in the theory defined by a nearest-neighbour improved lattice action. This calculation is a necessary ingredient for improved Monte Carlo computations of hadronic matrix elements relevant for weak interactions.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
English
WILSON FERMIONS; LATTICE QCD; CONTINUUM LIMIT; IMPROVED SCALING
Frezzotti, R., Gabrielli, E., Pittori, C., & Rossi, G.C. (1992). Four-fermion operators with improved nearest-neighbour action. NUCLEAR PHYSICS. B, 373(3), 781-794 [doi:10.1016/0550-3213(92)90276-H].
Frezzotti, R; Gabrielli, E; Pittori, C; Rossi, G
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/43493
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