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We study the prospects of measuring the decay of the Higgs boson into a pair of muons at the International Linear Collider (ILC). The study is performed at center-of-mass energies of 250,GeV and 500,GeV, with fully-simulated Monte-Carlo samples based on the International Large Detector (ILD). The expected precision on cross section times branching ratio $sigma times mathrm{BR}(h to mu ^+ mu ^-)$ has been evaluated to be 24.9{%} for an integrated luminosity of 2,ab$^{-1}$ at 250,GeV. This result improves to 17.5{%} in combination with 4,ab$^{-1}$ of 500,GeV data. We also quantify the impact of the transverse momentum resolution on this analysis, and found that it is very important reach the design goal of an asymptotic resolution of $sigma_{1/P_t} = 2 times 10^{-5}$,GeV$^{-1}$.
The prospects for measuring the branching fraction of $H to mu ^+ mu ^-$ at the International Linear Collider (ILC) have been evaluated based on a full detector simulation of the International Large Detector (ILD) concept, considering centre-of-mass
We evaluate the measurement precision of the production cross section times the branching ratio of the Higgs boson decaying into tau lepton pairs at the International Linear Collider (ILC). We analyze various final states associated with the main pro
The existence of dark matter has been established in astrophysics. However, there are no dark matter candidates in the Standard Model~(SM). If the dark matter particles or their mediator can not interact with SM fermions or gauge bosons, the Higgs bo
In the Standard Model, the Higgs boson is a CP even state with CP conserving couplings; any deviations from this would be a sign of new physics. These CP properties can be probed by measuring Higgs decays to tau lepton pairs: the transverse correlati
Talk given at PIC2013 summarizing the results of CMS-PAS-HIG-13-004.