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Perturbative Higgs coupling CP violation, unitarity, and phenomenology.

Englert, Christoph and Nordström, Karl and Sakurai, Kazuki and Spannowsky, Michael (2017) 'Perturbative Higgs coupling CP violation, unitarity, and phenomenology.', Physical review D., 95 (1). 015018.


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.

Item Type:Article
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Publisher statement:Reprinted with permission from the American Physical Society: Physical Review D 95, 015018 © (2017) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
Date accepted:24 November 2016
Date deposited:26 July 2017
Date of first online publication:23 January 2017
Date first made open access:26 July 2017

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