@phdthesis{oai:sucra.repo.nii.ac.jp:00010309,
 author = {太田, 慎吾},
 month = {},
 note = {66 p., 1 Introduction 5
2 Phenomenological shortcomings in the Standard Model 7
2.1 Lepton Flavor Violation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Dark Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Standard Big-Bang Nucleosynthesis and Lithium problems . . . . . . . . . . . . . . . . 9
3 Big-Bang Nucleosynthesis with a long-lived slepton in the MSSM 15
3.1 Neutralino dark matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Long-lived slepton and its flavor violating decay . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Exotic BBN reactions with long-lived slepton . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 Internal conversion processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 Slepton-catalyzed fusion process . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.3 4He spallation processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4 Number density of the long-lived slepton . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.1 Total number density of SUSY particles . . . . . . . . . . . . . . . . . . . . . . 22
3.4.2 Ratio of the number density between the slepton to the neutralino . . . . . . . 23
3.4.3 Boltzmann equations for relic number density of the slepton . . . . . . . . . . . 23
3.5 Analytical constraint on the flavor mixing . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.6 Results of the BBN with a long-lived slepton in the MSSM . . . . . . . . . . . . . . . 25
3.6.1 Constraint on slepton flavor mixing . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.6.2 Allowed regions by Big-Bang Nucleosynthesis . . . . . . . . . . . . . . . . . . . 28
4 Big-Bang Nucleosynthesis with a long-lived slepton in the NMSSM 33
4.1 The Next-to-Minimal Supersymmetric Standard Model . . . . . . . . . . . . . . . . . . 33
4.1.1 Higgs bosons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1.2 Neutralinos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1.3 BBN with a long-lived slepton . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.2 Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2.1 Search for candidate region on λ-κ plane . . . . . . . . . . . . . . . . . . . . . . 37
4.2.2 Selection of parameter sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.2.3 Constraints from BBN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.3 Results of the BBN with a long-lived slepton in NMSSM . . . . . . . . . . . . . . . . . 39
4.3.1 Singlino-like neutralino LSP; small λ-κ region with large tan β . . . . . . . . . 39
4.3.2 Singlino-like neutralino LSP; large λ-κ region with small tan β . . . . . . . . . 48
4.3.3 Bino-like neutralino LSP; large λ-κ region with small tan β . . . . . . . . . . . 54
5 Summary 59, 主指導教員 : 佐藤丈, text, application/pdf},
 school = {埼玉大学},
 title = {Big-bang nucleosynthesis with a long-lived slepton and a 125 GeV Higgs boson in the (next-to-)minimal super symmetric standard model},
 year = {2014},
 yomi = {オオタ, シンゴ}
}