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arXiv · 2009.04340

Prospects of measuring the branching fraction of the Higgs boson decaying into muon pairs at the International Linear Collider

Shin-ichi Kawada·Jenny List·Mikael Berggren
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Abstract

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 energies ($\sqrt{s}$) of 250 GeV and 500 GeV. For both $\sqrt{s}$ cases, the two final states $e^+ e^- \to q\overline{q}H$ and $e^+ e^- \to \nu \overline{\nu}H$ have been analyzed. For integrated luminosities of 2 ab$^{-1}$ at $\sqrt{s} = 250$ GeV and 4 ab$^{-1}$ at $\sqrt{s} = 500$ GeV, the combined precision on the branching fraction of $H \to \mu ^+ \mu ^-$ is estimated to be 17{\%}. The impact of the transverse momentum resolution for this analysis is also studied.

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Shin-ichi Kawada, Jenny List, Mikael Berggren. 2020-09-09. Prospects of measuring the branching fraction of the Higgs boson decaying into muon pairs at the International Linear Collider. https://doi.org/10.1140/epjc%2Fs10052-020-08729-7

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