Crivellin, Andreas; Müller, Dario; Saturnino, Francesco (2020). Leptoquarks in oblique corrections and Higgs signal strength: status and prospects. Journal of High Energy Physics, 2020(11) Springer 10.1007/JHEP11(2020)094
|
Text
Crivellin2020_Article_LeptoquarksInObliqueCorrection.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (1MB) | Preview |
Leptoquarks (LQs) are predicted within Grand Unified Theories and are well motivated by the current flavor anomalies. In this article we investigate the impact of scalar LQs on Higgs decays and oblique corrections as complementary observables in the search for them. Taking into account all five LQ representations under the Standard Model gauge group and including the most general mixing among them, we calculate the effects in h → γγ, h → gg, h → Zγ and the Peskin-Takeuchi parameters S, T and U. We find that these observables depend on the same Lagrangian parameters, leading to interesting correlations among them. While the current experimental bounds only yield weak constraints on the model, these correlations can be used to distinguish different LQ representations at future colliders (ILC, CLIC, FCC-ee and FCC-hh), whose discovery potential we are going to discuss.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Crivellin, Andreas, Müller, Dario, Saturnino, Francesco |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
27 Jan 2021 09:19 |
Last Modified: |
05 Dec 2022 15:44 |
Publisher DOI: |
10.1007/JHEP11(2020)094 |
ArXiv ID: |
2006.10758 |
BORIS DOI: |
10.48350/151025 |
URI: |
https://boris.unibe.ch/id/eprint/151025 |
Actions (login required)
 |
Edit item |