We discuss how the peculiar properties of maximally twisted Wilson fermions can be exploited to set up a consistent LQCD computational scheme in which the CP-conserving matrix elements of the ΔS=1,2 effective weak Hamiltonian can be evaluated without mixing with wrong-chirality and/or -parity operators. The proposed lattice framework guarantees automatic O(a) improvement and positive determinant also for pairs of non-degenerate quarks.
Frezzotti, R., Rossi, G. (2005). Four quark operators in maximally twisted Wilson LQCD. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? 23rd International Symposium on Lattice Field Field: Lattice 2005, Dublin - Ireland [10.22323/1.020.0342].
Four quark operators in maximally twisted Wilson LQCD
FREZZOTTI, ROBERTO;ROSSI, GIANCARLO
2005-01-01
Abstract
We discuss how the peculiar properties of maximally twisted Wilson fermions can be exploited to set up a consistent LQCD computational scheme in which the CP-conserving matrix elements of the ΔS=1,2 effective weak Hamiltonian can be evaluated without mixing with wrong-chirality and/or -parity operators. The proposed lattice framework guarantees automatic O(a) improvement and positive determinant also for pairs of non-degenerate quarks.| File | Dimensione | Formato | |
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