Collider searches of scalar singlets across lifetimes
High Energy Physics - Phenomenology
2021-04-21 v1 High Energy Physics - Experiment
Abstract
Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays into a pair of singlets, considering signatures of invisible decays, displaced and delayed jets, and coupling fits of untagged decays. We examine the generic scalar singlet and the relaxion, and derive a matching as well as qualitative differences between them. For each model, we discuss its natural parameter space and the searches probing it.
Keywords
Cite
@article{arxiv.2008.12773,
title = {Collider searches of scalar singlets across lifetimes},
author = {Elina Fuchs and Oleksii Matsedonskyi and Inbar Savoray and Matthias Schlaffer},
journal= {arXiv preprint arXiv:2008.12773},
year = {2021}
}
Comments
24 pages + appendices and references, 10 figures