Boost to h→Zγ: from LHC to future e+e− colliders

No, Jose Miguel; Spannowsky, Michael

doi:10.1103/physrevd.95.075027

Boost to h→Zγ: from LHC to future e+e− colliders

No, Jose Miguel; Spannowsky, Michael

Authors

Jose Miguel No

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

Abstract

A precise measurement of the Higgs h→Zγ decay is very challenging at the LHC, due to the very low %SM h→Zγ(Z→ℓℓ) branching fraction and the shortage of kinematic handles to suppress the large SM Zγ background. We show how such a measurement would be significantly improved by considering Higgs production in association with a hard jet. We compare the prospective HL-LHC sensitivity in this channel with other Higgs production modes where h is fairly boosted, e.g.~weak boson fusion, and also to the potential h→Zγ measurement achievable with a future e+e− circular collider ({\sl fcc-ee}). Finally, we discuss new physics implications of a precision measurement of h→Zγ.

Citation

No, J. M., & Spannowsky, M. (2017). Boost to h→Zγ: from LHC to future e+e− colliders. Physical Review D, 95(1), Article 075027. https://doi.org/10.1103/physrevd.95.075027

Journal Article Type	Article
Online Publication Date	Apr 21, 2017
Publication Date	Apr 21, 2017
Deposit Date	Jan 5, 2017
Publicly Available Date	May 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	075027
DOI	https://doi.org/10.1103/physrevd.95.075027
Related Public URLs	https://arxiv.org/abs/1612.06626

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