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研究生： 伍先至
Wu, Hsien-Chih
論文名稱： 新物理下的希格斯雙光子衰變之數值分析
Diphoton Decay of Higgs in New Physics
指導教授： 陳傳仁
Chen, Chuan-Ren
學位類別： 碩士
Master
系所名稱： 物理學系
Department of Physics
論文出版年： 2016
畢業學年度： 104
語文別： 中文
論文頁數： 57
中文關鍵詞： 希格斯粒子 、新物理 、雙光子衰變 、粒子物理
英文關鍵詞： Higgs, New Physics, Diphoton Decay, Particle physics
DOI URL： https://doi.org/10.6345/NTNU202203992
論文種類： 學術論文
相關次數： 點閱：132  下載：58 
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    • 近一個世紀高能領域裡許多重大突破，且在近幾年內LHC實驗又證實希格斯粒子$H$的存在。本篇前段將會簡述粒子物理與希格斯粒子的背景知識，再補充一些實驗物理的介紹，最後重點討論希格斯粒子衰變至雙光子的過程，並且討論不同的新粒子在此過程中的貢獻與影響，再將LHC的實驗數據套入，找出新粒子被允許存在的質量和耦合強度的範圍。我們將分別分析的新粒子為自旋為0或1的玻色子，以及自旋為1/2的費米子，且探討其相關修正的具體定量結果。

    摘要...........................................i 致謝...........................................ii 1 Introduction 概論............................1 2 Background Materials 背景知識.................5 2.1 Standard Model 標準模型.....................5 2.2 Kinematics 運動學...........................7 2.3 Symmetries 對稱性...........................8 2.4 Quantum Mechanics 量子力學..................9 2.5 Perturbation Theory 微擾理論................13 2.6 Decay Widths and Cross Sections............16 2.7 Eexperiment 實驗...........................18 3 Higgs particle 希格斯粒子.....................23 3.1 Spontaneous Symmetry Breaking..............24 3.2 Goldstone Mechanism 戈德斯通機制............24 3.3 Higgs Mechanism 希格斯機制..................26 3.4 Higgs Production 希格斯生成.................31 3.5 Higgs Decay 希格斯衰變......................33 4 Higgs Decays involving New Particles.........41 4.1 Higgs decay to diphoton....................41 4.2 New W boson................................44 4.3 New Scalar Boson...........................46 4.4 New Lepton.................................49 5 Conclusion 結論..............................53 Reference 參考文獻..............................55

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