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Progress Towards an ab initio, Standard Model Calculation of Direct CP-Violation in K-decays

High Energy Physics - Lattice 2013-10-02 v1
Authors: Christopher Kelly
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Abstract

We discuss the RBC & UKQCD collaboration's progress towards a first-principles calculation of direct CP-violation in the Standard Model via K ->pi pi decays. In particular we focus upon the calculation of the I=0 channel amplitude A_0, for which obtaining physical kinematics requires more sophisticated techniques than those used for the I=2-channel decay. We discuss our chosen techniques along with preliminary demonstrations of their application to simpler lattice quantities, and finally discuss our progress in generating the large-volume, physical-pion-mass ensembles that will be used to perform the A_0 calculation.

Keywords

direct CP-violation Standard Model K-decays lattice QCD I=0 channel amplitude physical kinematics RBC & UKQCD collaboration

Cite

@article{arxiv.1310.0434,
  title  = {Progress Towards an ab initio, Standard Model Calculation of Direct CP-Violation in K-decays},
  author = {Christopher Kelly},
  journal= {arXiv preprint arXiv:1310.0434},
  year   = {2013}
}

Comments

6 pages, 1 figures. Presentation at the DPF 2013 Meeting of the American Physical Society Division of Particles and Fields, Santa Cruz, California, August 13-17, 2013

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