Four quark operators in maximally twisted Wilson LQCD
High Energy Physics - Lattice
2016-09-01 v1
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 effective weak Hamiltonian can be evaluated without mixing with wrong-chirality and/or -parity operators. The proposed lattice framework guarantees automatic O() improvement and positive determinant also for pairs of non-degenerate quarks.
Keywords
Cite
@article{arxiv.hep-lat/0509155,
title = {Four quark operators in maximally twisted Wilson LQCD},
author = {Roberto Frezzotti and Giancarlo Rossi},
journal= {arXiv preprint arXiv:hep-lat/0509155},
year = {2016}
}
Comments
6 pages, talk presented at Lattice 2005 (weak matrix elements), Dublin, July 25-30, 2005