No Higgs at the LHC ?! A case for the ILC

TL;DR

The paper explores the possibility that the LHC might not detect the Higgs boson, suggesting singlet scalars could be present and emphasizing the importance of the ILC for studying the Higgs sector if this occurs.

Contribution

It proposes that singlet scalars may exist without Higgs detection at LHC and highlights the ILC's role in investigating this scenario.

Findings

Electroweak data may favor non-standard Higgs models

Singlet scalars could be relevant in astroparticle physics

ILC is essential for detailed Higgs sector study

Abstract

I discuss the question whether it is possible that the LHC will find no signal for the Higgs particle. It is argued that in this case singlet scalars should be present that could play an important role in astroparticle physics. A critical view at the existing electroweak data shows that this possibility might be favored over the simplest standard model. In this case one needs the ILC in order to study the Higgs sector.