@phdthesis{oai:sucra.repo.nii.ac.jp:00010312, author = {須貝, 顕一}, month = {}, note = {83 p., We explore the coannihilation region of the constrained minimal supersymmetric standard model (CMSSM) being consistent with current experimental/observational results. The requirements from the experimental/observational results are the 125GeV Higgs boson mass and the relic abundances of both the dark matter and light elements, especially the lithium-7. We put these requirements on the calculated values, and thus we obtain the allowed region. Then we give predictions to the mass spectra of the SUSY particles, the anomalous magnetic moment of muon, branching fractions of the B-meson rare decays, the direct detection of the neutralino dark matter, and the number of SUSY particles produced in a 14TeV run at the LHC experiment. Comparing these predictions with current bounds, we show the feasibility of the test for this scenario in near future experiment., 1 Introduction 2 2 Review of the Big Bang Nucleosynthesis 4 2.1 Neutron - Proton ratio (T ≤ 0.8MeV) . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Deuteron synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Beyond Deuteron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 SBBN reaction network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Stau BBN Scenario 13 3.1 Long lived stau . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.2 Formation of stau-nucleus bound states . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.2.1 Evaluation of binding energy . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.2.2 Recombination Cross Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2.3 Boltzmann equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.3 Exotic Nuclear Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.3.1 Stau-Catalayzed Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.3.2 Internal Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.3.3 4He Spallation Reactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.3.4 Comparing the rate of spallation reaction with that of stau-catalyzed fusion . 26 3.4 Relic density of Stau at the BBN era . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.4.1 Boltzmann equations for the number density evolution of stau and neutralino 27 3.4.2 The exchange processes and Lagrangian for describing them . . . . . . . . . . 29 3.4.3 Calculation of the number density ratio of stau and neutralino . . . . . . . . 30 3.4.4 Long-lived stau and BBN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4 The discovery potential of the CMSSM at the LHC 33 4.1 Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.2 Allowed region in the CMSSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.2.1 A0 - m0 plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4.2.2 m0 - M1/2 plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.3 SUSY spectrum, (g ― 2)μ, B-meson rare decays, and dark matter detection . . . . . 40 4.3.1 Spectra of SUSY particles with current limits . . . . . . . . . . . . . . . . . . 40 4.3.2 Muon g ― 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4.3.3 Rare decays of B mesons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4.3.4 Direct detection of neutralino dark matter . . . . . . . . . . . . . . . . . . . . 48 4.4 Direct search at the LHC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 5 Summary 72 Acknowledgments 74 references 78, 主指導教員 : 佐藤丈, text, application/pdf}, school = {埼玉大学}, title = {A first evidence of the CMSSM is appearing soon}, year = {2014}, yomi = {スガイ, ケンイチ} }