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The Super-Natural Supersymmetry
February 18, 20162:00 pm – 3:00 pm (CDT)

The Super-Natural Supersymmetry


Tianjun Li (Institute of Theoretical Physics, China)



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

Supersymmetry is the most promising new physics beyond the Standard Model (SM). However, the naturalness in the Supersymmetric SMs (SSMs) is challenged from both the SM-like Higgs boson mass and the LHC supersymmetry searches. We point out that the electroweak fine-tuning problem in the SSMs is mainly due to the high energy definition of the fine-tuning measure. We propose the super-natural supersymmetry which has an order one high energy fine-tuning measure automatically. The key point is that all the mass parameters in the SSMs arise from a single supersymmetry breaking parameter. Considering no-scale supergravity and Giudice-Masiero mechanism, we show explicitly that the high energy fine-tuning measure is indeed of unit order in the F-SU(5) and Minimal SSM (MSSM). In addition, we study the M-theory inspired the Next to MSSM (NMSSM) since the NMSSM can be scale invariant and is the perfect framework for super-natural supersymmetry. Furthermore, we propose the effective super-natural supersymmetry and realize it in the SSM with Dirac gauginos and gauge mediation.

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