The Higgs boson mass in a natural MSSM with nonuniversal gaugino masses at the GUT scale

Abstract

We identify a parameter region where the mass of the lightest CP-even Higgs boson resides in $124.4-126.8$ GeV, and at the same time the degree of tuning a Higgsino-mass parameter (so-called $\mu$-parameter) is relaxed above 10% in the minimal supersymmetric standard model (MSSM) with soft supersymmetry breaking terms, by solving the full set of one-loop renormalization group equations numerically. It is found that certain nonuniversal values of gaugino-mass parameters at the so-called grand unification theory (GUT) scale $\sim 10^{16}$ GeV are important ingredients for the MSSM to predict, without a severe fine-tuning, the Higgs boson mass $\sim 125$ GeV indicated by recent observations at the Large Hadron Collider. We also show a typical superparticle spectrum in this parameter region.

14 pages, 5 figures, Typos corrected, references and comments added

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• The 126 GeV Higgs boson mass and naturalness in (deflected) mirage mediation
• LHC phenomenology of natural MSSM with non-universal gaugino masses at the unification scale
• Constraints on non-universal gaugino mass scenario using the latest LHC data
• Study of dark matter physics in non-universal gaugino mass scenario
• Phenomenology of NMSSM in TeV scale mirage mediation
• Superfield description of (4+2n)-dimensional SYM theories and their mixtures on magnetized tori
• Exploring nearly degenerate higgsinos using mono-$Z/W$ signal
• Taking aim at the wino-higgsino plane with the LHC
• Flavor physics induced by light $Z^{\prime }$ from SO(10) GUT
• Peccei-Quinn violating minimal supergravity and a 126 GeV Higgs
• Analysis of the TeV-scale mirage mediation with heavy superparticles
• Probing the hyperbolic branch/focus point region of the constrained minimal supersymmetric standard model with generalized Yukawa quasi-unification
• Non-Universal Gaugino Masses in the NMSSM
• Nonuniversal gaugino masses in a magnetized toroidal compactification of SYM theories
• Particle physics and cosmology with high-scale SUSY breaking in five-dimensional supergravity models