Fine-tuned vs. natural supersymmetry: what does the string landscape predict?

Journal of High Energy Physics

Regular Article - Theoretical Physics

Vernon Barger¹  Howard Baer²  Dakotah Martinez²  Shadman Salam² 

[1] Department of Physics, University of Wisconsin, 1150 University Avenue, 53706, Madison, WI, USA;Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks, 73019, Norman, OK, USA;

关键词: String Models;    Supersymmetry;    String and Brane Phenomenology;   

DOI  :  10.1007/JHEP09(2022)125

 received in 2022-07-05, accepted in 2022-09-04,  发布年份 2022

来源: Springer

【 摘 要 】

A vast array of (metastable) vacuum solutions arise from string compactifications, each leading to different 4-d laws of physics. The space of these solutions, known as the string landscape, allows for an environmental solution to the cosmological constant problem. We examine the possibility of an environmental solution to the gauge hierarchy problem. We argue that the landscape favors softly broken supersymmetric models over particle physics models containing quadratic divergences, such as the Standard Model. We present a scheme for computing relative probabilities for supersymmetric models to emerge from the landscape. The probabilities are related to the likelihood that the derived value of the weak scale lies within the Agrawal et al. (ABDS) allowed window of values leading to atoms as we know them. This then favors natural SUSY models over unnatural (SUSY and other) models via a computable probability measure.

【 授权许可】

Unknown   
© The Author(s) 2022

【 图 表 】

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