H$\to$invisible at the ILC with SiD

Abstract

The Standard Model (SM) predicts a branching ratio of the Higgs boson decaying to invisible particles of $\mathcal{O}$(0.001), though current measurements have only set upper limits on this value. The small SM-allowed rate can be enhanced if the Higgs boson decays into new particles such as dark matter. Upper limits have been placed on BR(H$\to$inv.) by ATLAS and CMS at $\mathcal{O}$(0.1), but the hadron environment limits precision. The ILC `Higgs factory' will provide unprecedented precision of this electroweak measurement. Studies of the search for H$\to$invisible processes in simulation are presented with SiD, a detector concept designed for the ILC. Preliminary results for expected sensitivity are provided, as well as studies considering potential systematics limitations.

arXiv commentTalk presented at the International Workshop on Future Linear Colliders (LCWS2021), 15-18 March 2021. C21-03-15.1 v2 corrects normalization strategy, impacting yields as compared to v1

References in corpus (5)

• Can WIMP Dark Matter overcome the Nightmare Scenario?
• Tests of the Standard Model at the International Linear Collider
• DSiD: a Delphes Detector for ILC Physics Studies
• Probing the dark sector via searches for invisible decays of the Higgs boson at the ILC
• SiD Simulation & Analysis for ILC Snowmass Physics LoIs

Cited by in corpus (1)

• SiD Simulation & Analysis for ILC Snowmass Physics LoIs