Prospects for direct CP tests of hqq interactions

Alonso, Rodrigo; Fraser-Taliente, Cristofero; Hays, Chris; Spannowsky, Michael

Abstract

We study the prospects for probing the CP structure of hqq interactions using the decays of the lightest baryon Λq formed in the quark’s hadronization. The low yields of reconstructible events make it unlikely for tests to be performed with the next generation of colliders. In h → bb¯¯ → ΛbΛ¯¯¯¯b decays a CP-sensitive distribution could be measured with a high-luminosity e+e− collider, while in both h → bb¯¯ → ΛbΛ¯¯¯¯b and h → cc¯¯ → ΛcΛ¯¯¯¯c decays such a distribution could be measured with a very high luminosity μ+μ− collider. However, we find that only the μ+μ− collider can produce enough h → bb¯¯ → ΛbΛ¯¯¯¯b decays to probe a physical CP asymmetry in the hbb vertex.

Citation

Alonso, R., Fraser-Taliente, C., Hays, C., & Spannowsky, M. (2021). Prospects for direct CP tests of hqq interactions. Journal of High Energy Physics, 2021(8), Article 167. https://doi.org/10.1007/jhep08%282021%29167

• Journal Article Type: Article
• Acceptance Date: Aug 4, 2021
• Online Publication Date: Aug 30, 2021
• Publication Date: 2021
• Deposit Date: Oct 25, 2021
• Publicly Available Date: Oct 26, 2021
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Issue: 8
• Article Number: 167
• DOI: https://doi.org/10.1007/jhep08%282021%29167
• Public URL: https://durham-repository.worktribe.com/output/1233535