Skip to main content
SpringerLink
Log in

Limits on scalar-leptoquark masses from lepton-flavor-violating processes of the l i → l j γ type

  • Elementary Particles and Fields
  • Theory
  • Published:
Physics of Atomic Nuclei Aims and scope Submit manuscript

Abstract

The contributions of scalar leptoquarks to lepton-flavor-violating processes of the l i → l j γ type are investigated on the basis of the minimal model relying on four-color symmetry and involving the Higgs mechanism of quark- and lepton-mass generation. It is shown that experimental data on the decay processes μ → eγ, τ → μγ, and τ → eγ are compatible with the existence of light scalar leptoquarks belonging to the type being considered and having masses around 1 TeV or below.

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. S. L. Glashow, J. Iliopoulos, and L. Maiani, Phys. Rev. D 2, 1285 (1970).

    Article  ADS  Google Scholar 

  2. MEGA Collab. (M. L. Brooks et al.), Phys. Rev. Lett. 83, 1521 (1999).

    Article  Google Scholar 

  3. MEGA Collab. (M. Ahmed et al.), Phys. Rev. D 65, 112002 (2002).

    Article  Google Scholar 

  4. T. Mori et al., Research Proposal to PSI, R-99-5 May 1999, http://meg.web.psi.ch/docs/prop-psi/proposal.ps.gz.

  5. Belle Collab. (K. Hayasaka et al.), Phys. Lett. B 666, 16 (2008).

    Article  ADS  Google Scholar 

  6. A. G. Akeroyd et al. (SuperKEKB Physics Working Group), hep-ex/0406071.

  7. E. Guido (on behalf of the BaBar Collab.), arXiv:1005.2333 [hep-ex].

  8. M. Bona et al., arXiv:0709.0451 [hep-ex].

  9. A. D. Smirnov, Phys. Lett. B 346, 297 (1995).

    Article  ADS  Google Scholar 

  10. A. D. Smirnov, Yad. Fiz. 58, 2252 (1995) [Phys. At. Nucl. 58, 2137 (1995)].

    Google Scholar 

  11. A. V. Povarov and A. D. Smirnov, Yad. Fiz. 66, 2259 (2003) [Phys. At. Nucl. 66, 2208 (2003)].

    Google Scholar 

  12. A. D. Smirnov, Mod. Phys. Lett. A 22, 2353 (2007).

    Article  ADS  Google Scholar 

  13. A. V. Povarov, Yad. Fiz. 69, 903 (2006) [Phys. At. Nucl. 69, 876 (2006)].

    Google Scholar 

  14. A. V. Povarov and A. D. Smirnov, Yad. Fiz. 64, 78 (2001) [Phys. At. Nucl. 64, 74 (2001)].

    Google Scholar 

  15. C. Amsler et al. (Particle Data Group), Phys. Lett. B 667, 1 (2008), http://pdg.lbl.gov

    Article  ADS  Google Scholar 

  16. M. C. Gonzalez-Garcia and C. Pena-Garay, Phys. Rev. D 68, 093003 (2003).

    Article  ADS  Google Scholar 

  17. W. L. Guo and Z. Z. Xing, Phys. Rev. D 67, 053002 (2003).

    Article  ADS  Google Scholar 

  18. L. Calibbi, A. Faccia, A. Masiero, and S. K. Vempati, hep-ph/0610241.

  19. G. L. Fogli, E. Lisi, A. Marrone, and A. Palazzo, Prog. Part. Nucl. Phys. 57, 742 (2006).

    Article  ADS  Google Scholar 

  20. J. Blümlein, E. Boos, and A. Kryukov, Z. Phys. C 76, 137 (1997), hep-ph/9610408.

    Article  Google Scholar 

  21. J. Blümlein, E. Boos, and A. Kryukov, Preprint DESY 97-067, hep-ph/9811271.

  22. M. V. Martynov and A. D. Smirnov, Mod. Phys. Lett. A 23, 2907 (2008), arXiv:0807.4486 [hep-ph].

    Article  ADS  MATH  Google Scholar 

  23. M. V. Martynov and A. D. Smirnov. Yad. Fiz. 73, 1247 (2010) [Phys. At. Nucl. 73, 1207 (2010)].

    Google Scholar 

  24. P. Y. Popov, A. V. Povarov, and A. D. Smirnov, Mod. Phys. Lett. A 20, 3003 (2005), hep-ph/0511149.

    Article  ADS  MATH  Google Scholar 

  25. A. V. Povarov, P. Yu. Popov, and A. D. Smirnov, Yad. Fiz. 70, 771 (2007) [Phys. At. Nucl. 70, 739 (2007)].

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Yaroslavl State University, ul. Sovetskaya 14, Yaroslavl, 150000, Russia

    A. V. Povarov & A. D. Smirnov

Authors
  1. A. V. Povarov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. D. Smirnov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. V. Povarov.

Additional information

Original Russian Text © A.V. Povarov, A.D. Smirnov, 2011, published in Yadernaya Fizika, 2011, Vol. 74, No. 5, pp. 758–765.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Povarov, A.V., Smirnov, A.D. Limits on scalar-leptoquark masses from lepton-flavor-violating processes of the l i → l j γ type. Phys. Atom. Nuclei 74, 732–739 (2011). https://doi.org/10.1134/S1063778811050188

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063778811050188

Keywords

Search

Navigation