An Alternative Yukawa Unified SUSY Scenario

Abstract

Supersymmetric SO(10) Grand Unified Theories with Yukawa unification represent an appealing possibility for physics beyond the Standard Model. However Yukawa unification is made difficult by large threshold corrections to the bottom mass. Generally one is led to consider models where the sfermion masses are large in order to suppress these corrections. Here we present another possibility, in which the top and bottom GUT scale Yukawa couplings are equal to a component of the charged lepton Yukawa matrix at the GUT scale in a basis where this matrix is not diagonal. Physically, this weak eigenstate Yukawa unification scenario corresponds to the case where the charged leptons that are in the 16 of SO(10) containing the top and bottom quarks mix with their counterparts in another SO(10) multiplet. Diagonalizing the resulting Yukawa matrix introduces mixings in the neutrino sector. Specifically we find that for a large region of parameter space with relatively light sparticles, and which has not been ruled out by current LHC or other data, the mixing induced in the neutrino sector is such that $si{n}^{2}2{\Theta }_{23}\approx 1$, in agreement with data. The phenomenological implications are analyzed in some detail.

32 pages, 22 Figures

References in corpus (15)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
• Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions
• Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy
• Improved Limits on Spin-Dependent WIMP-Proton Interactions from a Two Liter CF${}_3$I Bubble Chamber
• Dark matter allowed scenarios for Yukawa-unified SO(10) SUSY GUTs
• CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation
• Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using sqrt(s)=7 TeV pp collisions with the ATLAS detector
• Possible evidence for the breakdown of the CKM-paradigm of CP-violation
• SUSY GUTs with Yukawa unification: a go/no-go study using FCNC processes
• Is "just-so" Higgs splitting needed for t-b-τYukawa unified SUSY GUTs?
• Prospects for Yukawa Unified SO(10) SUSY GUTs at the CERN LHC
• Viable and testable SUSY GUTs with Yukawa unification: the case of split trilinears
• The decay Bs -> mu+ mu-: updated SUSY constraints and prospects

Cited by in corpus (10)

• Higgs Boson Mass from t-b-tau Yukawa Unification
• NLSP Gluino and NLSP Stop Scenarios from b-tau Yukawa Unification
• 125 GeV Higgs Boson from t-b-tau Yukawa Unification
• Muon g-2 in an Alternative Quasi-Yukawa Unification with Low Fine-Tuned Inverse SeeSaw Mechanism
• Effective observables for electromagnetic duality from novel amplitude decomposition
• Quasi Yukawa Unification and Fine-Tuning in U(1) Extended SSM
• Sparticle Spectroscopy from SO(10) GUT with a Unified Higgs Sector
• Light Higgsinos, Heavy Gluino and $b-\tau$ Quasi-Yukawa Unification: Will the LHC find the Gluino?
• LHC Run-3, $b-\tau$ Yukawa Unification and Dark Matter Implications in SUSY 4-2-2 model
• Strong CP Violation and large-$N_c$ spin-flavor symmetry