Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to main content
Springer Nature Link
Log in

Minimal lepton flavor violating realizations of minimal seesaw models

  • Published:
Journal of High Energy Physics Aims and scope Submit manuscript

Abstract

We study the implications of the global U(1) R symmetry present in minimal lepton flavor violating implementations of the seesaw mechanism for neutrino masses. In the context of minimal type I seesaw scenarios with a slightly broken U(1) R , we show that, depending on the R-charge assignments, two classes of generic models can be identified. Models where the right-handed neutrino masses and the lepton number breaking scale are decoupled, and models where the parameters that slightly break the U(1) R induce a suppression in the light neutrino mass matrix. We show that within the first class of models, contributions of right-handed neutrinos to charged lepton flavor violating processes are severely suppressed. Within the second class of models we study the charged lepton flavor violating phenomenology in detail, focusing on μ → eγ, μ → 3e and μ − e conversion in nuclei. We show that sizable contributions to these processes are naturally obtained for right-handed neutrino masses at the TeV scale. We then discuss the interplay with the effects of the right-handed neutrino interactions on primordial B − L asymmetries, finding that sizable right-handed neutrino contributions to charged lepton flavor violating processes are incompatible with the requirement of generating (or even preserving preexisting) B − L asymmetries consistent with the observed baryon asymmetry of the Universe.

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

Access this article

Log in via an institution

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

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. T. Schwetz, M. Tortola and J. Valle, Where we are on θ 13 : addendum to ‘Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters’, New J. Phys. 13 (2011) 109401 [arXiv:1108.1376] [INSPIRE].

    Article  ADS  Google Scholar 

  2. M. Gonzalez-Garcia, M. Maltoni and J. Salvado, Updated global fit to three neutrino mixing: status of the hints of θ 13 > 0, JHEP 04 (2010) 056 [arXiv:1001.4524] [INSPIRE].

    Article  ADS  Google Scholar 

  3. R.S. Chivukula and H. Georgi, Composite Technicolor Standard Model, Phys. Lett. B 188 (1987) 99 [INSPIRE].

    ADS  Google Scholar 

  4. L. Hall and L. Randall, Weak scale effective supersymmetry, Phys. Rev. Lett. 65 (1990) 2939 [INSPIRE].

    Article  ADS  Google Scholar 

  5. G. D’Ambrosio, G. Giudice, G. Isidori and A. Strumia, Minimal flavor violation: An Effective field theory approach, Nucl. Phys. B 645 (2002) 155 [hep-ph/0207036] [INSPIRE].

    Article  ADS  Google Scholar 

  6. V. Cirigliano, B. Grinstein, G. Isidori and M.B. Wise, Minimal flavor violation in the lepton sector, Nucl. Phys. B 728 (2005) 121 [hep-ph/0507001] [INSPIRE].

    Article  ADS  Google Scholar 

  7. S. Davidson and F. Palorini, Various definitions of Minimal Flavour Violation for Leptons, Phys. Lett. B 642 (2006) 72 [hep-ph/0607329] [INSPIRE].

    ADS  Google Scholar 

  8. M. Gavela, T. Hambye, D. Hernandez and P. Hernández, Minimal Flavour Seesaw Models, JHEP 09 (2009) 038 [arXiv:0906.1461] [INSPIRE].

    Article  ADS  Google Scholar 

  9. R. Alonso, G. Isidori, L. Merlo, L.A. Muñoz and E. Nardi, Minimal flavour violation extensions of the seesaw, JHEP 06 (2011) 037 [arXiv:1103.5461] [INSPIRE].

    Article  ADS  Google Scholar 

  10. A. Ibarra, E. Molinaro and S. Petcov, TeV Scale See-Saw Mechanisms of Neutrino Mass Generation, the Majorana Nature of the Heavy Singlet Neutrinos and (ββ)0ν -Decay, JHEP 09 (2010) 108 [arXiv:1007.2378] [INSPIRE].

    Article  ADS  Google Scholar 

  11. A. Ibarra, E. Molinaro and S. Petcov, Lepton Number Violation in TeV Scale See-Saw Extensions of the Standard Model, J. Phys. Conf. Ser. 335 (2011) 012048 [arXiv:1101.5778] [INSPIRE].

    Article  ADS  Google Scholar 

  12. A. Ibarra, E. Molinaro and S. Petcov, Low Energy Signatures of the TeV Scale See-Saw Mechanism, Phys. Rev. D 84 (2011) 013005 [arXiv:1103.6217] [INSPIRE].

    ADS  Google Scholar 

  13. D. Aristizabal Sierra and C.E. Yaguna, On the importance of the 1-loop finite corrections to seesaw neutrino masses, JHEP 08 (2011) 013 [arXiv:1106.3587] [INSPIRE].

    Article  ADS  Google Scholar 

  14. J. Schechter and J. Valle, Neutrino Masses in SU(2) × U(1) Theories, Phys. Rev. D 22 (1980) 2227 [INSPIRE].

    ADS  Google Scholar 

  15. J.F. Kamenik and M. Nemevšek, Lepton flavor violation in type-I + III seesaw, JHEP 11 (2009) 023 [arXiv:0908.3451] [INSPIRE].

    Article  ADS  Google Scholar 

  16. S. Blanchet, T. Hambye and F.-X. Josse-Michaux, Reconciling leptogenesis with observable μ → eγ rates, JHEP 04 (2010) 023 [arXiv:0912.3153] [INSPIRE].

    Article  ADS  Google Scholar 

  17. Particle Data Group collaboration, K. Nakamura et al., Review of particle physics, J. Phys. G 37 (2010) 075021 [INSPIRE].

    ADS  Google Scholar 

  18. R. Mohapatra and J. Valle, Neutrino Mass and Baryon Number Nonconservation in Superstring Models, Phys. Rev. D 34 (1986) 1642 [INSPIRE].

    ADS  Google Scholar 

  19. G. Branco, W. Grimus and L. Lavoura, The Seesaw Mechanism in the Presence of a Conserved Lepton Number, Nucl. Phys. B 312 (1989) 492 [INSPIRE].

    Article  ADS  Google Scholar 

  20. A. Abada, C. Biggio, F. Bonnet, M. Gavela and T. Hambye, Low energy effects of neutrino masses, JHEP 12 (2007) 061 [arXiv:0707.4058] [INSPIRE].

    Article  ADS  Google Scholar 

  21. P.-H. Gu, M. Hirsch, U. Sarkar and J. Valle, Neutrino masses, leptogenesis and dark matter in hybrid seesaw, Phys. Rev. D 79 (2009) 033010 [arXiv:0811.0953] [INSPIRE].

    ADS  Google Scholar 

  22. D. Ibáñez, S. Morisi and J. Valle, Inverse tri-bimaximal type-III seesaw and lepton flavor violation, Phys. Rev. D 80 (2009) 053015 [arXiv:0907.3109] [INSPIRE].

    ADS  Google Scholar 

  23. D. Forero, S. Morisi, M. Tortola and J. Valle, Lepton flavor violation and non-unitary lepton mixing in low-scale type-I seesaw, JHEP 09 (2011) 142 [arXiv:1107.6009] [INSPIRE].

    Article  ADS  Google Scholar 

  24. MEG collaboration, J. Adam et al., New limit on the lepton-flavour violating decay μ + → e + γ, Phys. Rev. Lett. 107 (2011) 171801 [arXiv:1107.5547] [INSPIRE].

    Article  ADS  Google Scholar 

  25. http://meg.icepp.s.u-tokyo.ac.jp/docs/prop_psi/proposal.pdf.

  26. BABAR collaboration, B. Aubert et al., Searches for Lepton Flavor Violation in the Decays τ ± → e ± γ and τ ± → μ ± γ, Phys. Rev. Lett. 104 (2010) 021802 [arXiv:0908.2381] [INSPIRE].

    Article  ADS  Google Scholar 

  27. A. Ilakovac and A. Pilaftsis, Flavor violating charged lepton decays in seesaw-type models, Nucl. Phys. B 437 (1995) 491 [hep-ph/9403398] [INSPIRE].

    Article  ADS  Google Scholar 

  28. SINDRUM collaboration, U. Bellgardt et al., Search for the Decay μ + → e + e + e −, Nucl. Phys. B 299 (1988) 1 [INSPIRE].

    Article  ADS  Google Scholar 

  29. K. Hayasaka et al., Search for Lepton Flavor Violating τ Decays into Three Leptons with 719 Million Produced τ + τ − Pairs, Phys. Lett. B 687 (2010) 139 [arXiv:1001.3221] [INSPIRE].

    ADS  Google Scholar 

  30. http://www.physi.uni-heidelberg.de/Forschung/he/mu3e/documents/LOI_Mu3e_PSI.pdf.

  31. SINDRUM II collaboration, C. Dohmen et al., Test of lepton flavor conservation in μ → e conversion on titanium, Phys. Lett. B 317 (1993) 631 [INSPIRE].

    ADS  Google Scholar 

  32. SINDRUM II collaboration, W.H. Bertl et al., A Search for muon to electron conversion in muonic gold, Eur. Phys. J. C 47 (2006) 337 [INSPIRE].

    Article  ADS  Google Scholar 

  33. C. Ankenbrandt et al., Using the Fermilab proton source for a muon to electron conversion experiment, physics/0611124 [INSPIRE].

  34. http://j-parc.jp/NuclPart/pac_0701/pdf/P21-LOI.pdf.

  35. http://j-parc.jp/NuclPart/pac_0606/pdf/p20-Kuno.pdf.

  36. R. Kitano, M. Koike and Y. Okada, Detailed calculation of lepton flavor violating muon electron conversion rate for various nuclei, Phys. Rev. D 66 (2002) 096002 [Erratum ibid. D 76 (2007) 059902] [hep-ph/0203110] [INSPIRE].

  37. WMAP collaboration, G. Hinshaw et al., Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps and Basic Results, Astrophys. J. Suppl. 180 (2009) 225 [arXiv:0803.0732] [INSPIRE].

    Article  ADS  Google Scholar 

  38. T. Asaka and S. Blanchet, Leptogenesis with an almost conserved lepton number, Phys. Rev. D 78 (2008) 123527 [arXiv:0810.3015] [INSPIRE].

    ADS  Google Scholar 

  39. E. Bertuzzo, P. Di Bari, F. Feruglio and E. Nardi, Flavor symmetries, leptogenesis and the absolute neutrino mass scale, JHEP 11 (2009) 036 [arXiv:0908.0161] [INSPIRE].

    Article  ADS  Google Scholar 

  40. D. Aristizabal Sierra, F. Bazzocchi, I. de Medeiros Varzielas, L. Merlo and S. Morisi, Tri-Bimaximal Lepton Mixing and Leptogenesis, Nucl. Phys. B 827 (2010) 34 [arXiv:0908.0907] [INSPIRE].

    Article  ADS  Google Scholar 

  41. R.G. Felipe and H. Serodio, Constraints on leptogenesis from a symmetry viewpoint, Phys. Rev. D 81 (2010) 053008 [arXiv:0908.2947] [INSPIRE].

    ADS  Google Scholar 

  42. E. Nardi, Y. Nir, E. Roulet and J. Racker, The importance of flavor in leptogenesis, JHEP 01 (2006) 164 [hep-ph/0601084] [INSPIRE].

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. IFPA, Dep. AGO, Universite de Liege, Bat B5, Sart Tilman, B-4000, Liege 1, Belgium

    D. Aristizabal Sierra & A. Degee

  2. J. Stefan Institute, Jamova 39, P.O. Box 3000, 1001, Ljubljana, Slovenia

    J. F. Kamenik

  3. Department of Physics, University of Ljubljana, Jadranska 19, 1000, Ljubljana, Slovenia

    J. F. Kamenik

Authors
  1. D. Aristizabal Sierra
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Degee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. F. Kamenik
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to D. Aristizabal Sierra.

Additional information

ArXiv ePrint: 1205.5547

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sierra, D.A., Degee, A. & Kamenik, J.F. Minimal lepton flavor violating realizations of minimal seesaw models. J. High Energ. Phys. 2012, 135 (2012). https://doi.org/10.1007/JHEP07(2012)135

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/JHEP07(2012)135

Keywords

Search

Navigation