English

pi^0-eta Mixing and CP Violation

High Energy Physics - Phenomenology 2009-10-31 v1

Abstract

We discuss π0\pi^0 -η\eta mixing and its implication for ϵ/ϵ\epsilon'/ \epsilon to next-to-leading order in the low-energy expansion. The big effect due to η\eta-η\eta' mixing is shown to be largely cancelled by other contributions occurring at the same order in the chiral expansion.

Cite

@article{arxiv.hep-ph/9912264,
  title  = {pi^0-eta Mixing and CP Violation},
  author = {G. Ecker and G. Mueller and H. Neufeld and A. Pich},
  journal= {arXiv preprint arXiv:hep-ph/9912264},
  year   = {2009}
}

Comments

8 pages

R2 v1 2026-07-22T14:55:36.189Z