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IFAE 2006 pp 247-250 | Cite as

CP violation and CKM parameters determination in BaBar

  • Nicola Neri
Conference paper

Abstract

CP violation (CPV), first detected in K Lπ + π decays in 1964 [1], is accomodated in the Standard Model (SM) by a CP-violating phase in the CKM matrix, the matrix which describes the mixing of the quarks (under the weak interaction) [2]. From the unitarity constraints of the CKM matrix, we have V ud V ub * + V cd V cb * + V td V tb * = 0, the so-called Unitarity Triangle relation, represented in Fig. 1. CPV is proportional to the area of the triangle and requires the angles and sides to be different from zero. The main goal of the BaBar experiment [3] is to overconstrain the Unitarity Triangle parameters, measuring the sides and the angles directly from the data of B u and B d meson decays, in order to test the consistency of the SM.

Keywords

Dalitz Plot BABAR Collaboration Unitarity Triangle Unitarity Constraint BaBar Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    J. H. Christenson, J. W. Cronin, V. L. Fitch and R. Turlay,Phys. Rev. Lett. 13, 138 (1964).CrossRefADSGoogle Scholar
  2. 2.
    N. Cabibbo, Phys. ReV. Lett. 10, 531 (1963); M. Kobayashi and T. Maskawa, Prog. Theor. Phys. 49, 652 (1973).CrossRefADSGoogle Scholar
  3. 3.
    B. Aubert et al. [BABAR Collaboration], Nucl. Instrum. Meth. A 479, 1 (2002)CrossRefADSGoogle Scholar
  4. 4.
    B. Aubert et al. [BABAR Collaboration], Phys. R ev. Lett. 87, 091801 (2001)CrossRefADSGoogle Scholar
  5. 5.
    K. Abe et al. [Belle Collaboration], Phys. Rev. Lett. 87, 091802 (2001)CrossRefADSGoogle Scholar
  6. 6.
    M. Gronau and D. London, Phys. Lett. B253, 483 (1991).ADSGoogle Scholar
  7. 7.
    M. Gronau and D. Wyler, Phys. Lett. B265, 172 (1991).ADSGoogle Scholar
  8. 8.
    D. Atwood, I. Dunietz and A. Soni, Phys. Rev. Let t. 78, 3257 (1997)CrossRefADSGoogle Scholar
  9. 9.
    A. Giri, Yu. Grossman, A. Soffer and J. Zupan, Ph ys. Rev. D68, 054018 (2003).ADSGoogle Scholar
  10. 10.
    B. Aubert [BABAR Collaboration], arXiv:hep-ex/0607104.Google Scholar
  11. 11.
    M. Ciuchini et al., JHEP 0107, 013 (2001)CrossRefADSGoogle Scholar
  12. 12.
    B. Aubert et al. [BABAR Collaboration], Phys. Rev. Lett. 96, 251802 (2006)CrossRefADSGoogle Scholar
  13. 13.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607107.Google Scholar
  14. 14.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607100.Google Scholar
  15. 15.
    B. Aubert et al. [BABAR Collaboration], Phys. Rev. D 71, 091102 (2005)CrossRefADSGoogle Scholar
  16. 16.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607108.Google Scholar
  17. 17.
    M. Gronau and D. London, Phys. Rev. Lett. 65, 3381 (1990).CrossRefADSGoogle Scholar
  18. 18.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607106.Google Scholar
  19. 19.
    Y. Grossman and H. R. Quinn, Phys. Rev. D 58, 017504 (1998)CrossRefADSGoogle Scholar
  20. 20.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607097.Google Scholar
  21. 21.
    B. Aubert et al. [BABAR Collaboration], arXiv:hep-ex/0607098.Google Scholar
  22. 22.
    B. Aubert [BABAR Collaboration], arXiv:hep-ex/0608002.Google Scholar
  23. 23.
    J. Albert et al., arXiv:physics/0512235.Google Scholar

Copyright information

© Springer-Verlag Italia 2007

Authors and Affiliations

  • Nicola Neri
    • 1
  1. 1.INFN Sezione di PisaPisaItaly

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