Perturbative Higgs coupling CP violation, unitarity, and phenomenology

Englert, Christoph; Nordström, Karl; Sakurai, Kazuki; Spannowsky, Michael

Abstract

Perturbative probability conservation provides a strong constraint on the presence of new interactions of the Higgs boson. In this work we consider CP-violating Higgs interactions in conjunction with unitarity constraints in the gauge-Higgs and fermion-Higgs sectors. Injecting signal strength measurements of the recently discovered Higgs boson allows us to make concrete and correlated predictions of how CP violation in the Higgs sector can be directly constrained through collider searches for either characteristic new states or telltale enhancements in multi-Higgs processes.

Citation

Englert, C., Nordström, K., Sakurai, K., & Spannowsky, M. (2017). Perturbative Higgs coupling CP violation, unitarity, and phenomenology. Physical Review D, 95(1), Article 015018. https://doi.org/10.1103/physrevd.95.015018

• Journal Article Type: Article
• Acceptance Date: Nov 24, 2016
• Online Publication Date: Jan 23, 2017
• Publication Date: Jan 23, 2017
• Deposit Date: Jan 5, 2017
• Publicly Available Date: Jul 26, 2017
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 95
• Issue: 1
• Article Number: 015018
• DOI: https://doi.org/10.1103/physrevd.95.015018
• Public URL: https://durham-repository.worktribe.com/output/1397027