Mikael Chala
Searches for vector-like quarks at future colliders and implications for composite Higgs models with dark matter
Chala, Mikael; Gröber, Ramona; Spannowsky, Michael
Abstract
Many composite Higgs models predict the existence of vector-like quarks with masses outside the reach of the LHC, e.g. m Q ≳ 2 TeV, in particular if these models contain a dark matter candidate. In such models the mass of the new resonances is bounded from above to satisfy the constraint from the observed relic density. We therefore develop new strategies to search for vector-like quarks at a future 100 TeV collider and evaluate what masses and interactions can be probed. We find that masses as large as ∼ 6.4 (∼9) TeV can be tested if the fermionic resonances decay into Standard Model (dark matter) particles. We also discuss the complementarity of dark matter searches, showing that most of the parameter space can be closed. On balance, this study motivates further the consideration of a higher-energy hadron collider for a next generation of facilities.
Citation
Chala, M., Gröber, R., & Spannowsky, M. (2018). Searches for vector-like quarks at future colliders and implications for composite Higgs models with dark matter. Journal of High Energy Physics, 2018(3), Article 040. https://doi.org/10.1007/jhep03%282018%29040
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 28, 2018 |
Online Publication Date | Mar 7, 2018 |
Publication Date | Mar 7, 2018 |
Deposit Date | Mar 22, 2018 |
Publicly Available Date | Mar 22, 2018 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2018 |
Issue | 3 |
Article Number | 040 |
DOI | https://doi.org/10.1007/jhep03%282018%29040 |
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Copyright Statement
Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
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