学术报告

学术活动

学术报告
01/25 2024 Seminar
  • Title题目 R-symmetric Wess-Zumino models: classification and model dataset construction
  • Speaker报告人 孙铮(四川大学物理学院)
  • Date日期 2024年1月25日 16:30
  • Venue地点 理论物理所南楼6520
  • Abstract摘要

    The Nelson-Seiberg theorem and its generalizations relates R-symmetries and supersymmetry breaking in generic R-symmetric Wess-Zumino models, which are extensively used in the study of new physics beyond the Standard Model as well as string compactifications.  This work makes an exhaustive search for generic renormalizable R-symmetric Wess-Zumino models with up to 5 chiral fields, and checks the consistency of their vacuum solutions with predictions from the Nelson-Seiberg theorem and its generalizations.  We found that among 859 models in total, 19 of them have supersymmetric vacua unpredicted by the Nelson-Seiberg theorem and its generalizations.  These exceptional models have their specific R-charge assignments covered by constructions found in previous literature.  The search result can be used to estimate the accuracy of the field counting method for finding supersymmetric models in the string landscape.  More applications of the dataset are expected in future work.


    个人简介:

    孙铮,博士,2002年本科毕业于中国科学技术大学;2007年于加利福尼亚大学圣克鲁斯分校获得博士学位;2007-2009年在首尔大学从事博士后研究;2009-2011年在塔塔基础研究院从事博士后研究;2012年9月加入四川大学物理学院。


    邀请人:

    李田军 研究员

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