Higgs sector extensions and their constraints

我提出这个建议的目的是研究粒子物理学标准模型中希格斯区“奇异的”扩展。希格斯扇区是一组负责产生基本粒子质量的粒子；2012年，欧洲核子研究中心的大型强子对撞机首次发现了它的物理表现——希格斯玻色子。从那时起，大型强子对撞机实验的两个主要重点是(1)测量发现的希格斯玻色子的性质，(2)寻找可能的额外希格斯玻色子，这将表明希格斯扇区的扩展（或非最小）版本。

My objective in this proposal is to study "exotic" extensions of the Higgs sector of the Standard Model of particle physics. The Higgs sector is the set of particles responsible for the generation of the mass of the fundamental particles; its physical manifestation, a Higgs boson, was first discovered by the Large Hadron Collider at CERN in 2012. Two of the main focuses of Large Hadron Collider experiments since then have been (1) the measurement of the properties of the discovered Higgs boson and (2) searches for possible additional Higgs bosons that would indicate an extended (or non-minimal) version of the Higgs sector. My work focuses on the theoretical study of such extended Higgs sectors. In particular, I work on "exotic" Higgs sector extensions, that contain Higgs bosons that are not simply a replication of the simplest Standard Model isospin-doublet Higgs field. The purpose of this work is first to constrain the (a priori near infinite) possible variety of exotic Higgs fields, and then to identify those experimental signatures that appear in common across the majority of theoretically-acceptable exotic Higgs sectors, so that searches for these signatures can be prioritized by the experimentalists working at the Large Hadron Collider and other experiments. An important aspect of this work is writing open-source computer software that will allow experimentalists to accurately simulate the features of the exotic Higgs bosons, so that they can design effective experimental search strategies. The ultimate aim of this work is to be able to say with certainty whether exotic Higgs fields play any role in generating the masses of the fundamental particles.