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Improving measurement on Higgs-gluon effective coupling
04/24
2019
- Title Improving measurement on Higgs-gluon effective coupling
- Speaker
- Date
- Venue
Abstract
| CAS Key Laboratory of Theoretical Physics | |||
| Institute of Theoretical Physics | |||
| Chinese Academy of Sciences | |||
| Seminar | |||
| Title 题目 | Improving measurement on Higgs-gluon effective coupling | ||
| Speaker 报告人 |
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| Date 日期 |
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| Venue 地点 | ITP South (New) Building 6420 | ||
| Abstract 摘要 | In this talk we will introduce new jet substructure observables constructed with the jet energy profile and Convolutional Neural Networks to improve the precision measurement of Higgs boson-gluon effective coupling at lepton colliders. By using these methods the uncertainty of the effective coupling can be further reduced by about 30% compared to that using conventional method in the channel of a Z boson decaying to lepton pair in the MC simulation for the center-of-mass energy 250 GeV and integrated luminosity 5 ab^-1. We also searched the influence of different parton showers on jet substructure recognition. The difference between the expected uncertainty of the effective coupling using PYTHIA and HERWIG data is about 0.1%. | ||
| Contact Person 所内联系人 | Gang Yang | ||