Precision and uncertainties in mass scale predictions in SUSY SO(10) with SU(2)_L× SU(2)_R× U(1)_B-L× SU(3)_C intermediate breaking

2002/10/31 by M. K. Parida, Bornali Purkayastha, B. Purkayastha +2 · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1140/epjc/s2003-01180-x

published as Eur.Phys.J.C28:353-363,2003 · 12 pages including 7 tables (Typos corrected as per the published version)

openalex publication_date 2003/06/01 · arxiv created 2006/12/04 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In a class of SUSY SO(10) with SU(2)_L x SU(2)_R x U(1)_B-L x SU(3)_C (g_2L≠ g_2R) intermediate gauge symmetry, we observe that the prediction on the unification mass (M_U) is unaffected by Planck-scale-induced gravitational and intermediate-scale-threshold effects, although the intermediate scale (M_I) itself is subject to such corrections. In particular, without invoking the presence of additional lighter scalar degrees of freedom but including plausible and reasonable threshold effects, we find that interesting solutions for neutrino physics corresponding to M_I≃ 10¹⁰-10¹³ GeV and M_U≃ (5-6) x 10¹⁷ GeV are permitted in the minimal models. Possibilities of low-mass right-handed gauge bosons corresponding to M_I≃ 1-10 TeV consistent with the CERN-LEP data are pointed out in a number of models when threshold effects are included using effective mass parameters.

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