Higgs Production by Gluon Fusion in New Physics

• Main Authors: Lin, Da-Wei, 林大維
• Other Authors: Chen, Chuan-Ren
• Format: Others
• Language: en_US
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/73551028067860291379

碩士 === 國立臺灣師範大學 === 物理學系 === 104 === The existence of the Standard Model Higgs boson was verified by CERN experiments, with its mass found to be 125 GeV. Its production cross section by the dominant gluon-gluon fusion channel can be readily written down by making use of low-energy theorems, which are valid in or beyond the Stan- dard Model. In this thesis the effects of exotic fermions or scalars to Higgs productions are considered. In these models, there would be additional con- tributions to the Higgs production amplitude by Feynman diagrams in which the top quark loops in the gluon-gluon fusion process are replaced by these exotic particle loops. Similar assertions hold for the two gamma decay chan- nel of the Higgs boson, by means of which the predictions of the models can be checked, if statistics improves in future experiments.