Two-Real-Singlet-Model Benchmark Planes

TL;DR

This paper reviews benchmark planes in the Two-Real-Singlet Model, an extension of the Standard Model with two real singlets, discussing their interactions, production prospects, and parameter space constraints using precision observables.

Contribution

It provides a comprehensive overview of benchmark planes in the TRSM, including production at future colliders and the use of W-boson mass as a precision test.

Findings

Identification of key benchmark planes for TRSM

Analysis of production channels at future Higgs factories

Constraints on model parameters from W-boson mass measurements

Abstract

In this manuscript, I briefly review the Benchmark Planes in the Two-Real-Singlet Model (TRSM), a model that enhances the Standard Model (SM) scalar sector by two real singlets that obey a Z2 x Z2' symmetry. In this model, all fields acquire a vacuum expectation value, such that the model contains in total 3 CP-even neutral scalars that can interact with each other. All interactions with SM-like particles are inherited from the SM-like doublet via mixing. I remind the readers of the previously proposed benchmark planes, and briefly discuss possible production at future Higgs factories, as well as regions in a more generic scan of the model. For these, I also discuss the use of the W-boson mass as a precision observable to determine allowed/ excluded regions in the models parameter space. This work builds on a whitepaper submitted to the Snowmass process.