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Double Higgs boson production at the ILC in the two-Higgs-doublet model
Get PDFWe study the Higgs boson pair production e^+ e^- → ff^^-hh (f ≠ t) in the two-Higgs-doublet model with the softly-broken Z_2 symmetry with the CP-invariance. In the case without the alignment limit, the cross section can be significantly enhanced, i.e., a few hundred percent levels as compared to that in the standard model, due to resonant effects of heavy neutral Higgs bosons. We find the correlation between the enhancement factor of the cross section and the scaling factor of the ff^^-h couplings (k_f) under constraints from the perturbative unitarity, the vacuum stability and the current experimental data at the LHC as well as the electroweak precision data.departmental bulletin pape
Property and Inheritance in American Culture : Possession of Land in Nineteenth-Century American Literature
Get PDF成蹊大学博士（文学）doctoral thesi
Recent Trends in Research on Organizational Citizenship Behavior : From January 2016 to December 2018
Get PDFThis study reviews research on organizational citizenship behavior (OCB) published between 2016 and 2018. In line with the OCB research that came before 2016, many of the current studies strive to determine the individual factors influencing OCB, which have become more diverse than ever. Several OCB studies focused on organizational-level antecedents of OCB. However, most of the reviewed literature was based on data collected at the individual level. That is, the researchers asked employees about their perceptions of their organizations instead of collecting objective data. Likewise, while several OCB studies addressed the mediating role of OCB, they did not establish their models with a convincing reason for why OCB would mediate the relation between the factors they analyzed. A few key implications for future study are provided in reaction to this review of the research.departmental bulletin pape
Family Law Reform through Constitutional Litigation? : The Persistence of Fossilized Rules and Challenges for the Japanese Supreme Court
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