RUI: Theoretical Investigation of CP Violation in Non-Standard Models

当今粒子物理学的一个非常重要的问题是寻找标准模型之外的物理信号。B介子系统尤其重要，因为这种粒子的衰变对非标准模型中可能出现的CP违和的新来源非常敏感。本研究将重点研究标准模型的两类扩展模型，即左-右模型和多重希格斯模型。该提案的一个方面将是制定新的可观测或技术，可用于帮助区分新物理的低能信号。将被研究的CP不对称包括b夸克可能衰变为奇异夸克和光子或双轻子对，以及b衰变为J/psi和phi介子。

A very important issue in particle physics today is searching for signals of physics beyond the standard model. The B meson system is especially important in that decays of this particle are very sensate to possible novel sources of CP violation that occur in non-standard models. This research will focus on two classes of models which are extensions of the standard model, namely left-right models and multi-Higgs models.One aspect of the proposal will be to formulate new observables or techniques that might be used to help discriminate low energy signals of new physics. CP asymmetries that will be examined include possible decays of the b quark into a strange quark and photon or dilepton pair, as well as decays of the B into J/psi and phi mesons.