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High Energy Physics - Phenomenology

arXiv:hep-ph/9807308 (hep-ph)
[Submitted on 9 Jul 1998 (v1), last revised 4 Aug 1998 (this version, v2)]

Title:Models of Supersymmetric $U(2)\times U(1)$ Flavor Symmetry

Authors:Galit Eyal
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Abstract: We use a $U(2)\times U(1)$ horizontal symmetry in order to construct supersymmetric models where the flavor structure of both quarks and leptons is induced naturally. The supersymmetric flavor changing neutral currents problem is solved by the degeneracy between sfermions induced by the U(2) symmetry. The additional U(1) enables the generation of mass ratios that cannot be generated by U(2) alone. The resulting phenomenology differs from that of models with either abelian or $U(2)\times GUT$ symmetries. Our models give rise to interesting neutrino spectra, which can incorporate the Super-Kamiokande results regarding atmospheric neutrinos.
Comments: 12 pages, LaTeX, typos corrected in eqs. 28,40
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: WIS-98/20/JULY-DPP
Cite as: arXiv:hep-ph/9807308
  (or arXiv:hep-ph/9807308v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9807308
Journal reference: Phys.Lett. B441 (1998) 191-197
Related DOI: https://doi.org/10.1016/S0370-2693%2898%2901154-X

Submission history

From: Galit Eyal [view email]
[v1] Thu, 9 Jul 1998 15:02:18 UTC (9 KB)
[v2] Tue, 4 Aug 1998 08:04:41 UTC (9 KB)
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