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CAS Key Laboratory of Theoretical Physics |
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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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Seminar |
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Title
题目 |
Improving measurement on Higgs-gluon effective coupling |
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Speaker
报告人 |
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Affiliation
所在单位 |
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Date
日期 |
| 2:00pm, Apr 24, 2019, Wednesday |
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Venue
地点 |
ITP South (New) Building 6420 |
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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%. |
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Contact Person
所内联系人 |
Gang Yang |
