Report by the Committee on the Scientific Case of the ILC Operating at 250 GeV as a Higgs Factory

Abstract

This document is the final report by the Committee on the Scientific Case of the ILC Operating at 250 GeV as a Higgs Factory. This committee was commissioned by the Japan Association of High Energy Physicists. The purpose of this committee is to investigate and compare the capability to determine the energy scale of new phenomena and new principles and the capability to uncover the origin of matter-antimatter asymmetry.

arXiv comment14 pages; detail plots in http://www.jahep.org/files/ILCmemo170722final.pdf English version will be prepared

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• Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models
• Flavor Dependent $U(1)$ Symmetric Zee Model with a Vector-like Lepton
• Radiative corrections to decays of charged Higgs bosons in two Higgs doublet models
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• A light singlet at the LHC and DM
• Constraints from Heavy Higgs boson masses in the two Higgs doublet model