Twisted mass QCD for weak matrix elements

Abstract

I report on the application of tmQCD techniques to the computation of hadronic matrix elements of four-fermion operators. Emphasis is put on the computation of $B_K$ in quenched QCD performed by the ALPHA Collaboration. The extension of tmQCD strategies to the study of neutral $B$-meson mixing is briefly discussed. Finally, some remarks are made concerning proposals to apply tmQCD to the computation of $K\to \pi \pi$ amplitudes.

15 pages, 4 figures, Plenary talk at Lattice 2006

References in corpus (9)

• The CKM Matrix and the Unitarity Triangle
• Non-perturbative renormalization of static-light four-fermion operators in quenched lattice QCD
• K-->pipi amplitudes from lattice QCD with a light charm quark
• Non-perturbative renormalisation of left-left four-fermion operators with Neuberger fermions
• Progress in Kaon Physics on the Lattice
• Simulating at Realistic Quark Masses: Light quark masses
• Simulating at Realistic Quark Masses: Pseudoscalar Decay Constants and Chiral Logarithms
• First results with two light flavours of quarks with maximally twisted mass
• Non-perturbative scale evolution of four-fermion operators in two-flavour QCD

Cited by in corpus (3)

• Non-perturbative renormalisation of Delta F=2 four-fermion operators in two-flavour QCD
• Progress in Kaon Physics on the Lattice
• Non-perturbative scale evolution of four-fermion operators in two-flavour QCD