於尋找單希格斯粒子中研究噴流子結構可觀測量;The Study of Jet Substructure Observables for the Search of Mono-Higgs

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/89493

Title:	於尋找單希格斯粒子中研究噴流子結構可觀測量;The Study of Jet Substructure Observables for the Search of Mono-Higgs
Authors:	陳孔祥;Chen, Kong-Hsiang
Contributors:	物理學系
Keywords:	暗物質;希格斯粒子;緊湊緲子線圈;大強子對撞機;噴流子結構;數據驅動;Dark matter;Higgs boson;Compact Muon Solenoid;Large Hadron Collider;Jet substructure;Data driven
Date:	2022-08-31
Issue Date:	2022-10-04 11:17:13 (UTC+8)
Publisher:	國立中央大學
Abstract:	搜索暗物質與一個類標準模型的希格斯粒子同時生成的成果將會被呈現，其中希格斯玻色子衰變為一對底夸克。在來年計畫以CMS在質心能量13兆電子伏特的第二次質子質子對撞實驗中得到的完整數據來更新單希格斯粒子的結果，設計事件篩選的標準以區分信號與背景，此篇論文對噴流子結構變量N_2^1進行了三個部分的研究，首先我們研究了其對希格斯粒子的標記並與另一種噴流子結構變量τ_21比較性能，其次，在經過轉換後的噴流子結構變量N_2^DDT的篩選後，考慮數據與蒙地卡羅模擬之間差異的比例因子，最後，將數據導向的方法應用於量子色動力學事件裡，作為噴流子結構變量的進一步研究。;A search for dark matter produced in association with a standard-model-like Higgs boson, where the Higgs boson decays into a pair of bottom quarks, is performed. In coming year, the plan is to update the mono-Higgs results by using the full Run II data from proton-proton collisions collected at CMS experiment at center-of-mass energy of 13 TeV. The selection criteria is devised to discriminate the signal from background. There are three parts of study for the jet substructure variable, N_2^1, in this thesis. First, We study the boosted Higgs boson tagging and compare the performance with another jet substructure variable, τ_21. Second, the scale factor for the difference between data and MC is considered after the selection of transformed jet substructure variable, N_2^DDT. Last, the data-driven method is applied for the further study of jet substructure variable with QCD samples.
Appears in Collections:	[Graduate Institute of Physics] Electronic Thesis & Dissertation

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