Naturalness and the Status of Supersymmetry
By Jonathan L. Feng. 2013
244 citations recorded by the source corpus.
For decades, the unnaturalness of the weak scale has been the dominant problem motivating new particle physics, and weak-scale supersymmetry has been the dominant proposed solution. This paradigm is now being challenged by a wealth of experimental data. In this review, we begin by recalling the theoretical motivations for weak-scale supersymmetry, including the gauge hierarchy problem, grand unification, and WIMP (weakly interacting massive particle) dark matter, and their implications for superpartner masses. These are set against the leading constraints on supersymmetry from collider searches, the Higgs boson mass, and low-energy constraints on flavor and CP violation. We then critically examine attempts to quantify naturalness in supersymmetry, stressing the many subjective choices that influence the results both quantitatively and qualitatively. Finally, we survey various proposals for natural supersymmetric models, including effective supersymmetry, focus point supersymmetry, compressed supersymmetry...
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/4893b5e5eadad495f5ba37b51cb3c05a9cd8084b
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Citations in the corpus
- The State of Supersymmetry after Run I of the LHC (2013, background): “The material covered – and the tone of its presentation – is necessarily idiosyncratic, and I apologize for any and all omissions; for an excellent alternative with somewhat different coverage of similar topics, I recommend Jonathan Feng’s lecture notes [1].”
- Search for New Physics with Atoms and Molecules (2017, background): “A limit on kα was obtained with a measurement of frequencies in atomic dysprosium, which is only sensitive to α variation (Ferrell et al., 2007). Guéna, Abgrall et al. (2012) reported a limit on a fractional variation of the Rb/Cs frequency ratio with gravitational potential at the level of ð0.”