Chirally improving Wilson fermions 2. Four-quark operators
By R. Frezzotti, G. Rossi. 2004
218 citations recorded by the source corpus.
In this paper we discuss how the peculiar properties of twisted mass lattice QCD at maximal twist can be employed to set up a consistent computational scheme in which, despite the explicit breaking of chiral symmetry induced by the presence of the Wilson and mass terms in the action, it is possible to completely bypass the problem of wrong chirality and parity mixings in the computation of the CP-conserving matrix elements of the I”S = 1, 2 effective weak hamiltonian, and at the same time have a positive determinant for pairs of non-degenerate quarks, as well as absence of O(a) discretization effects in on-shell quantities with no need of improving lattice action and operators. © SISSA/ISAS 2004.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/4fc2cb82357cd74c34f4240659396996fa7d6c36
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
Citations in the corpus
- ΔS=2 and ΔC=2 bag parameters in the standard model and beyond from N$_f$=2+1+1 twisted-mass lattice QCD (2015, methodology): “valence quark twisted masses, aval. The measured value of the valence PCAC quark mass, amval PCAC , for each sea ensemble of the “m” or “p” type is given in the last column of Table 6. Based on Ref. [53] the definition of the renormalized quark mass parameters in our partially quenched setup is Msea;”