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Journal of High Energy Physics

, 2017:155

First Online: 27 April 2017Received: 16 February 2017Revised: 23 March 2017Accepted: 18 April 2017DOI: 10.1007-JHEP042017155

Cite this article as: Degrassi, G., Fedele, M. & Giardino, P. J. High Energ. Phys. 2017 2017: 155. doi:10.1007-JHEP042017155 Abstract

We present the constraints on the trilinear Higgs self coupling that arise from loop effects in the W boson mass and the effective sine predictions. We compute the contributions to these precision observables of two-loop diagrams featuring an anomalous trilinear Higgs self coupling. We explicitly show that the same anomalous contributions are found if the analysis of mW and sinθeff is performed in a theory in which the scalar potential in the Standard Model Lagrangian is modified by an infinite tower of ΦΦ terms with Φ the Higgs doublet. We find that the bounds on the trilinear Higgs self coupling from precision observables are competitive with those coming from Higgs pair production.

KeywordsBeyond Standard Model Higgs Physics ArXiv ePrint: 1702.01737

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Autor: G. Degrassi - M. Fedele - P.P. Giardino

Fuente: https://link.springer.com/







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