Exotic Higgs Decay h to 2a at the International Linear Collider: a Snowmass White Paper

Abstract

A Higgs factory like the International Linear Collider (ILC) can play a significant role in searching for exotic decays of Higgs bosons. As an illustration, we investigate the ILC sensitivity for the decay topology $h\to a_1{a}_1\to \tau \bar{\tau }\tau \bar{\tau }$ in the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM). Here $h$ can be either Standard-Model-like or non-standard, and $a_1$ is the lightest CP-odd Higgs boson. We also compare results to expectations for this channel at the LHC.

Comments: 8 pages, 2 figures, Snowmass 2013