English

CP Violation: Present and Future

High Energy Physics - Phenomenology 2009-09-25 v1

Abstract

We review the present status of CP violation in the standard model. Subsequently we make an excursion in the future in order to see what we could expect in this field in this and the next decade. We present various strategies for the determination of the CKM parameters and divide the decays into four classes with respect to theoretical uncertainties. We emphasize that the definitive tests of the Kobayashi-Maskawa picture of CP violation will come through a {\it simultaneous} study of CP asymmetries in Bd,soB_{d,s}^o decays, the rare decays K+π+ννˉK^+ \to \pi^+\nu \bar\nu and KLπoννˉK_L \to \pi^o\nu\bar\nu, and xd/xsx_d/x_s. We illustrate how the measurements of the CP asymmetries in Bd,s0B^0_{d,s}-decays together with a measurement of Br(KLπννˉ)Br(K_L\to \pi^\circ\nu\bar\nu) or Br(\kpnn)Br(\kpnn) and the known value of Vus\mid V_{us}\mid can determine {\it all} elements of the Cabibbo-Kobayashi-Maskawa matrix essentially without any hadronic uncertainties.

Keywords

Cite

@article{arxiv.hep-ph/9406272,
  title  = {CP Violation: Present and Future},
  author = {A. J. Buras},
  journal= {arXiv preprint arXiv:hep-ph/9406272},
  year   = {2009}
}

Comments

26 Pages, MPI-PhT/94-30, TUM-T31-64/94, Latex file, figures not included