用CMS寻找s = 13 TeV时增强全强子终态中的二色子共振

T. Aarrestad
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引用次数: 0

摘要

本文总结了在CERN大型强子对撞机的CMS实验中,利用质心能量为$\sqrt{\rm{s}}=13$ TeV的数据,对全强子终态中二色子共振的三次搜索。玻色子衰变产物包含在一个大半径的射流中,产生双射流终态,用射流子结构技术进行解析。这些分析使用了2015年至2017年间收集的2.3、35.9和77.3反飞巴数据。其中包括首次使用在13 TeV碰撞能量下收集的数据搜索二色子共振,在分析2016年收集的数据的背景下引入一种新的算法来标记矢量玻色子,以及开发一种新的多维拟合,将先前搜索方法的灵敏度提高了30%。本文给出的结果是迄今为止dijet末态diboson共振搜索中最敏感的结果。重点介绍了矢量玻色子标记技术的改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Searching for diboson resonances in the boosted all-hadronic final state at s = 13 TeV with CMS
This article summarises three searches for diboson resonances in the all-hadronic final state using data collected at a center-of-mass energy of $\sqrt{\rm{s}}=13$ TeV with the CMS experiment at the CERN LHC. The boson decay products are contained in one large-radius jet, resulting in dijet final states which are resolved using jet substructure techniques. The analyses presented use 2.3, 35.9 and 77.3 inverse femtobarns of data collected between 2015 and 2017. These include the first search for diboson resonances using data collected at a 13 TeV collision energy, the introduction of a new algorithm to tag vector bosons in the context of analyzing the data collected in 2016, and the development of a novel multidimensional fit improving on the sensitivity of the previous search method with up to $30\%$. The results presented here are the most sensitive to date of diboson resonance searches in the dijet final state. An emphasis on improvements in technique for vector boson tagging is made.
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