The ILC Potential for Discovering New Particles

TL;DR

The paper discusses the potential of the International Linear Collider (ILC) to discover new particles, especially in scenarios where the LHC has not found beyond the Standard Model Higgs, highlighting the unique advantages of $e^+e^-$ collisions.

Contribution

It reviews the discovery opportunities at the ILC, emphasizing its capabilities in detecting particles with missing energy, small mass differences, and exotic Higgs decays.

Findings

ILC can observe particles with missing energy and small mass differences.

ILC provides precise measurements of mono-photon events.

ILC is crucial for exploring dark matter models with a dark sector.

Abstract

The LHC did not discover new particles beyond the Standard Model Higgs boson at 7 and 8 TeV, or in the first data samples at 13 TeV. However, the complementary nature of physics with $e^+e^-$ collisions still offers many interesting scenarios in which new particles can be discovered at the ILC. These scenarios take advantage of the capability of $e^+e^-$ collisions to observe particles with missing energy and small mass differences, to observe mono-photon events with precisely controlled backgrounds, and to observe the full range of exotic decay modes of the Higgs boson. The searches that an $e^+e^-$ collider makes possible are particularly important for models of dark matter involving a dark sector with particles above the modest energy reach of fixed-target experiments. In this talk, we will review the opportunities that the ILC offers for new particle discovery.