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Bi-maximal Neutrino Mixing and Anomalous Flavor U(1)

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Recent Developments in Particle Physics and Cosmology

Part of the book series: NATO Science Series ((NAII,volume 34))

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Abstract

We describe how bi-maximal neutrino mixing can be realized in realistic models based on MSSM and SUSY GUTs such as SU(5) and S0(10). A crucial role is played by an anomalous U(1) flavor symmetry, which also helps understand the observed charged fermion mass hierarchies and the magnitudes of the CKM matrix elements. While in MSSM a variety of solutions for the solar neutrino puzzle are possible, SUSY SU(5) and S0(10) only permit the large mixing angle MSW solution. Models in which the U(1) symmetry also mediates SUSY breaking allow both the large mixing angle and the low MSW solutions. We also present renormalization group studies for the neutrino mass matrix, generated through the U(1) flavor symmetry. Our analysis shows that renormalization does not change the desirable picture of bi-maximal mixing.

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Author information

Authors and Affiliations

  1. Bartol Research Institute, University of Delaware, Newark, 19716, DE, USA

    Qaisar Shafi

  2. Institute of Physics, Georgian Academy of Sciences, 380077, Tbilisi, Georgia, USA

    Zurab Tavartkiladze

Authors
  1. Qaisar Shafi
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  2. Zurab Tavartkiladze
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Editor information

Editors and Affiliations

  1. Instituto Superior Técnico, Centro de Física das Interacções Fundamentais, Lisboa, Portugal

    G. C. Branco  & J. I. Silva-Marcos  & 

  2. Bartol Research Institute, University of Delaware, Newark, Delaware, USA

    Q. Shafi

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Shafi, Q., Tavartkiladze, Z. (2001). Bi-maximal Neutrino Mixing and Anomalous Flavor U(1). In: Branco, G.C., Shafi, Q., Silva-Marcos, J.I. (eds) Recent Developments in Particle Physics and Cosmology. NATO Science Series, vol 34. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0676-7_5

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  • DOI: https://doi.org/10.1007/978-94-010-0676-7_5

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-7182-3

  • Online ISBN: 978-94-010-0676-7

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