Kaon $B$-parameters for Generic $ΔS=2$ Four-Quark Operators in Quenched Domain Wall QCD

Details Kaon $B$-parameters for Generic $ΔS=2$ Four-Quark Operators in Quenched Domain Wall QCD Kaon $B$-parameters for Generic $ΔS=2$ Four-Quark Operators in Quenched Domain Wall QCD

2006-10-12

arxiv.org/abs/hep-lat/0610075v1

PoSLAT2006:089,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, talk presented at Lattice2006 (Electroweak Decays and Mixing), PoS format

Scientific paper

We present a study of $B$-parameters for generic $\Delta S=2$ four-quark operators in domain wall QCD. Our calculation covers all the $B$-parameters required to study the neutral kaon mixing in the standard model (SM) and beyond it. We evaluate one-loop renormalization factors of the operators employing the plaquette and Iwasaki gauge actions. Numerical simulations are carried out in quenched QCD with both gauge actions on $16^3\times 32\times 16$ and $24^3\times 32\times 16$ at the lattice spacing $1/a\approx 2$GeV. We investigate the relative magnitudes of the non-SM $B$-parameters to the SM one, which are compared with the previous results obtained with the overlap and the clover quark actions.

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