Flavor problem, proton decay and neutrino oscillations in SUSY models with anomalous

1999/11/30 by Qaisar Shafi, Zurab Tavartkiladze · 3 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0370-2693(99)01433-1

published as Phys.Lett.B473:272-280,2000; Phys.Lett.B481:445-446,2000 · Additional references included. Version to appear in Phys. Lett.B

arxiv created 1999/12/08 · openalex publication_date 2000/02/01 · arxiv updated 2011/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We discuss how realistic supersymmetric models can be constructed by employing an anomalous \cal U(1) flavor symmetry which also mediates supersymmetry breaking. A judicious choice of \cal U(1) charges enables the first two squark families to be sufficiently heavy (\stackrel>_∼10 TeV), so that flavor changing neutral currents as well as dimension five nucleon decay are adequately suppressed. Using the SU(5) example, the charged fermion mass hierarchies, magnitudes of the CKM matrix elements, as well as the observed neutrino oscillations are simultaneously accommodated. We estimate the proton lifetime to be τ_p∼ 10³⋅ τ_p[\rm minimal SU(5)], with the decay mode p→ Kμ being comparable to p→ Kν_{μ, τ}.

Citations

• Superfield derivation of the low-energy effective theory of softly broken supersymmetry

Cited by

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• Nucleon decay searches with large liquid Argon TPC detectors at shallow depths: atmospheric neutrinos and cosmogenic backgrounds
• Gauge mediated proton decay in a renormalizable SUSY SO(10) with realistic mass matrices