强子喷注子结构方法（jet substructure）通过分析jet重建历史来研究jet的内部特点，以此区分来自不同物理源的jet，是近几年LHC唯象研究的前沿热点之一。近年研究表明运用jet substructure技术可以有效限制背景，提高一些新物理过程和黑格斯产生过程的探测显著性。申请人与合作者曾基于jet substructure技术提出hybrid-R方法成功提高了LHC上对重荷电黑格斯粒子的探测信噪比。本项目将继续深化前期研究，系统分析优化多种jet substructure算法，设计新的jet substructure算法。研究在LHC上运用jet substrucutre方法寻找新物理和黑格斯粒子，提高信号探测显著性。

Jet substrucutre methods study the inside characters of the jet via the analysis of the clustering history in order to distinguish jets from different sources, which have drawn many attentions in the phenomenological studies of recent years. It is found that jet substrucutre can significantly suppress backgrounds and improve the significance of the new physics search and Higgs search. I and my coollaborator proposed a hybird-R method based on jet substructure techinique and we have sucessfully used it to improve the search potential for heavy charged Higgs at the LHC. In this project, our group will systematically study jet substructure. We will investigate the optimization of several jet substructure algorithms and propose new algorithm of jet substructure. And we will study the search potential of the LHC for new physics and the Higgs boson with jet substructure, it is expected that the significance of the signal could be improved with the jet substructure technique.