New Supersoft Supersymmetry Breaking Operators and a Solution to the $\mu$ Problem

Abstract

We propose the framework, "generalized supersoft supersymmetry breaking". "Supersoft" models, with $D$-type supersymmetry breaking and heavy Dirac gauginos, are considerably less constrained by the LHC searches than the well studied MSSM. These models also ameliorate the supersymmetric flavor and $CP$ problems. However, previously considered mechanisms for obtaining a natural size Higgsino mass parameter (namely, $\mu$) in supersoft models have been relatively complicated and contrived. Obtaining a $125\gev$ for the mass of the lightest Higgs boson has also been difficult. Additional issues with the supersoft scenario arise from the fact that these models contain new scalars in the adjoint representation of the standard model, which may obtain negative squared-masses, breaking color and generating too large a $T$-parameter. In this work we introduce new operators into supersoft models which can potentially solve all these issues. A novel feature of this framework is that the new $\mu$-term can give unequal masses to the up and down type Higgs fields, and the Higgsinos can be much heavier than the Higgs boson without fine-tuning. However, unequal Higgs and Higgsino masses also remove some attractive features of supersoft susy.

arXiv commentchanged discussion regarding slepton mass. Version to appear in PRL

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Cited by in corpus (38)

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• Multi-channel assault on natural supersymmetry at the high luminosity LHC
• Goldstone Gauginos
• The Reach of the High-Energy LHC for Gluinos and Top Squarks in SUSY Models with Light Higgsinos
• Constraining the $R$-symmetric chargino NLSP at the LHC
• Models of Goldstone Gauginos
• What hadron collider is required to discover or falsify natural supersymmetry?
• Aspects of the same-sign diboson signature from wino pair production with light higgsinos at the high luminosity LHC
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• The Supersymmetric Standard Models with a Pseudo-Dirac Gluino from Hybrid $F-$ and $D-$Term Supersymmetry Breakings
• R-symmetry for Higgs alignment without decoupling
• Natural Scherk-Schwarz Theories of the Weak Scale
• Supersoft Supersymmetry, Conformal Sequestering, and Single Scale Supersymmetry Breaking
• Natural Supersymmetry: Status and Prospects
• Sparticle Spectroscopy and Dark Matter in a $U(1{)}_{B-L}$ extension of MSSM
• Natural emergence of neutrino masses and dark matter from $R$-symmetry
• Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino
• Supersymmetry: Aspirations and Prospects
• Light top squarks in $U(1{)}_R$-lepton number model with a right handed neutrino and the LHC
• Charting generalized supersoft supersymmetry
• A radiatively generated source of flavor universal scalar soft masses
• 750 GeV Diphotons from Supersymmetry with Dirac Gauginos
• Chasing New Physics in Stacks of Soft Tracks
• Minimal constrained superfields and the Fayet-Iliopoulos model
• Antisplit Supersymmetry
• Detection prospects of light pseudoscalar Higgs boson at the LHC
• Quasi-fixed points from scalar sequestering and the little hierarchy problem in supersymmetry
• PMNS matrix in a non-universal $U(1{)}_X$ extension to the MSSM with one massless neutrino
• New Calculations in Dirac Gaugino Models: Operators, Expansions, and Effects
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• Stripping a supermultiplet of all but one scalar: a microscopic view
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• Nambu-Jona-Lasinio Theory and Dynamical Breaking of Supersymmetry