簡易檢索 / 詳目顯示
| 研究生： |
陳昱銘 Chen, Yu-Ming |
|---|---|
| 論文名稱： |
Lepton Flavor Violating Higgs Boson Decay in G2HDM Lepton Flavor Violating Higgs Boson Decay in G2HDM |
| 指導教授： |
張嘉泓
Chang, Chia-Hung |
| 學位類別： |
碩士 Master |
| 系所名稱： |
物理學系 Department of Physics |
| 論文出版年： | 2021 |
| 畢業學年度： | 109 |
| 語文別： | 英文 |
| 論文頁數： | 21 |
| 英文關鍵詞： | G2HDM, Neutrino Mass, Lepton flavor violation |
| DOI URL： | http://doi.org/10.6345/NTNU202100188 |
| 論文種類： | 學術論文 |
| 相關次數： | 點閱：109 下載：11 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
We study charged lepton flavor violating Higgs boson decay process in the gauged two Higgs doublet model. The model introduces an additional SU(2)H gauged symmetry and combines two Higgs doublet H1 and H2 into a SU(2)H doublet H. We examine the neutrino mass mechanisms, including Dirac Type and Majorana type. In the latter, neutrino mass is achieved by the type-II seesaw mechanism with an additional SU(2)H triplet
∆N . ∆N is included here in the scalar potential and scalar mass spectrum. We present six Feynman diagrams of charged lepton flavor violating Higgs decay and calculate two
classic diagrams among them. It is shown W0 exchanging diagrams are the largest and we discuss how the amplitude will be determined by various parameters. In typical situation
the branching ratio is in the order around 10^−10 or smaller, probably beyond the ability of the Large Hadron Collider measurements to detect. However in some extreme case of
parameters, especially large Yukawa couplings, the branching ratio could be as large as 10^−6 and the H± exchanging diagrams could become more important.
[1] ATLAS, G. Aad et al., Phys.Lett. B716, 1 (2012), 1207.7214.
[2] CMS, S. Chatrchyan et al., Phys. Lett. B716, 30 (2012), 1207.7235.
[3] G. C. Branco, P. M. Ferreira, L. Lavoura, M. N. Rebelo, M. Sher, and J. P. Silva,“Theory and phenomenology of two-Higgs-doublet models,” Phys. Rep. 516, 1 (2012)[arXiv:1106.0034 [hep-ph]].
[4] W. C. Huang, Y. L. S. Tsai, and T. C. Yuan, “G2HDM : Gauged two Higgs doublet model,” JHEP 04 (2016) 019 [arXiv:1512.00229 [hep-ph]].
[5] A. Arhrib, W. C. Huang, R. Ramos, Y. L. S. Tsai and T. C. Yuan, “Consistency of agauged two-Higgs-doublet model: Scalar sector,” Phys. Rev. D 98, no.9, 095006 (2018)doi:10.1103/PhysRevD.98.095006 [arXiv:1806.05632 [hep-ph]].
[6] C. T. Huang, R. Ramos, V. Q. Tran, Y. L. S. Tsai and T. C. Yuan, “Consistency of a gauged two-Higgs-doublet model: Gauge sector,” JHEP 1909 (2019) 048 [arXiv:1905.02396 [hepph]].
[7] P. Q. Hung, Phys. Lett. B 649 (2007) 275, [hep-ph/0612004].
