English

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

High Energy Physics - Lattice 2012-08-27 v1

Abstract

We present a study of BB-parameters for generic ΔS=2\Delta S=2 four-quark operators in domain wall QCD. Our calculation covers all the BB-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 163×32×1616^3\times 32\times 16 and 243×32×1624^3\times 32\times 16 at the lattice spacing 1/a21/a\approx 2GeV. We investigate the relative magnitudes of the non-SM BB-parameters to the SM one, which are compared with the previous results obtained with the overlap and the clover quark actions.

Keywords

Cite

@article{arxiv.hep-lat/0610075,
  title  = {Kaon $B$-parameters for Generic $\Delta S=2$ Four-Quark Operators in Quenched Domain Wall QCD},
  author = {PACS Collaboration and Y. Nakamura and S. Aoki and M. Fukugita and N. Ishizuka and Y. Iwasaki and K. Kanaya and Y. Kuramashi and J. Noaki and M. Okawa and Y. Taniguchi and A. Ukawa and T. Yoshie},
  journal= {arXiv preprint arXiv:hep-lat/0610075},
  year   = {2012}
}

Comments

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