Skip to main content
SpringerLink
Log in

On the direct CP-violation parameter \(\epsilon'\)

  • theoretical physics
  • Published:
The European Physical Journal C - Particles and Fields Aims and scope Submit manuscript

Abstract.

We review different definitions of the \(\epsilon'\) parameter describing direct CP-violation in neutral kaon decays, which was precisely measured in recent experiments, and point out the inconsistency of some of them due to a CPT-constraint. The proper comparison of the experimental results to the theoretical computations is discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J.R. Batley et al. (NA48 collaboration), Phys. Lett. B 544, 97 (2002)

    Article  Google Scholar 

  2. A. Alavi-Harati et al. (KTeV collaboration), Phys. Rev. D 67, 012005 (2003)

    Article  Google Scholar 

  3. J.H. Christenson et al. , Phys. Rev. Lett. 13, 138 (1964)

    Google Scholar 

  4. B. Aubert et al. (BABAR collaboration), Phys. Rev. Lett. 97, 091801 (2001)

    Google Scholar 

  5. K. Abe et al. (BELLE collaboration), Phys. Rev. Lett. 97, 091802 (2001)

    Google Scholar 

  6. L. Wolfenstein, Phys. Rev. Lett. 13, 562 (1964)

    Article  Google Scholar 

  7. M.S. Sozzi, I. Mannelli, Riv. Nuovo Cim. 26, 1 (2003), hep-ex/0312015

    Google Scholar 

  8. T.T. Wu, C.N. Yang, Phys. Rev. Lett. 13, 380 (1964)

    Article  Google Scholar 

  9. T.D. Lee, C.S. Wu, Ann. Rev. Nucl. Sci. 16, 511 (1966)

    Google Scholar 

  10. L.-L. Chau, Phys. Rep. 95, 1 (1983)

    Article  Google Scholar 

  11. Y. Nir, in CP-violation in and beyond the Standard Model, Proceedings XXVII SLAC Summer Institute on Particle Physics, July 1999, hep-ph/9911321

  12. D.-D. Wu, Mod. Phys. Lett. A 13, 1413 (2000)

    Google Scholar 

  13. K.C. Chou et al. , Eur. Phys. J. C 16, 279 (2000)

    Google Scholar 

  14. Y. Takeuchi, S.Y. Tsai, Int. J. Mod. Phys. A 18, 1551 (2003)

    Article  MATH  Google Scholar 

  15. G.C. Branco et al. , CP-violation (Clarendon Press, Oxford 1999)

  16. B. Kayser, in CP-violation in the K and B systems, Proceedings 1995 ICTP Summer School in High Energy Physics and Cosmology, Trieste, 1995, hep-ph/9702264

  17. W. Grimus, Fortschr. Phys. 36, 201 (1988)

    Google Scholar 

  18. G. D’Ambrosio, G. Isidori, Int. J. Mod. Phys. A 13, 1 (1998)

    Article  MATH  Google Scholar 

  19. M. Hayakawa, A.I. Sanda, Phys. Rev. D 48, 1150 (1993)

    Article  Google Scholar 

  20. I. Bigi, A.I. Sanda, CP-violation (Cambridge University Press 2000)

  21. R. Belusevic, Neutral kaons (Springer Verlag 1999)

  22. A.J. Buras, R. Fleischer, Quark mixing, CP-violation and rare decays after the top quark discovery, in Heavy Flavours II, edited by A.J. Buras, M. Lindner (World Scientific), hep-ex/9704376

  23. L. Wolfenstein, Models of CP-violation, in Theory and phenomenology in particle physics - Erice school 1968, edited by A. Zichichi (Academic Press, New York 1968)

  24. V.V. Barmin et al. , Nucl. Phys. B 247, 293 (1984)

    Article  Google Scholar 

  25. E.A. Paschos, U. Turke, Phys. Rep. 178, 146 (1989)

    Google Scholar 

  26. W.F. Palmer et al. , Phys. Lett. B 350, 245 (1995)

    Article  Google Scholar 

  27. L. Wolfenstein, Phys. Rev. D 66, 010001 (2002)

    Article  Google Scholar 

  28. K. Hagiwara et al. (Particle Data Group), Phys. Rev. D 66, 010001 (2002)

    Article  Google Scholar 

  29. G. D’Agostini, Sceptical combination of experimental results: General considerations, application to \(\epsilon'/\epsilon\), CERN preprint CERN-EP/99-139, hep-ex/9910036

  30. A.J. Buras, M. Jamin, hep-ph/0306217

  31. C. Gatti et al. (KLOE collaboration), Scalar mesons and \(\delta_0-\delta_2\) at KLOE, in Proceedings QCD@Work 2003, Conversano (Italy), June 2003, hep-ex/0310031

  32. A.J. Buras, J.-M. Gerard, Phys. Lett. B 517, 129 (2001)

    Article  Google Scholar 

  33. C.D. Buchanan et al. , Phys. Rev. D 45, 4088 (1992)

    Article  Google Scholar 

  34. G. D’Ambrosio et al. , in Second DA\(\Phi\)NE Physics Handbook INFN Frascati (1995), 63

Download references

Author information

Authors and Affiliations

  1. Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126, Pisa, Italy

    M. S. Sozzi

Authors
  1. M. S. Sozzi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to M. S. Sozzi.

Additional information

Received: 27 January 2004, Published online: 23 June 2004

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sozzi, M.S. On the direct CP-violation parameter \(\epsilon'\) . Eur. Phys. J. C 36, 37–42 (2004). https://doi.org/10.1140/epjc/s2004-01868-3

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1140/epjc/s2004-01868-3

Keywords

Search

Navigation