Connection between diphoton and triboson channels in new physics searches

Diphoton channel provides a clean signature in searches for new physics. In this paper, we discuss a connection between the diphoton channel (γγ) and triboson channels (Zγγ, ZZγ, WWγ) imposed by the SU(2)L×U(1)Y symmetry of the Standard Model (SM) in certain classes of models. To illustrate this ide...

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Bibliographic Details
Published in:Physics letters. B 2018-12, Vol.787, p.23-29
Main Authors: Sokolenko, Anastasia, Bondarenko, Kyrylo, Boyarsky, Alexey, Shchutska, Lesya
Format: Article
Language:English
Subjects:
Axion-like particle
Background
New physics at LHC
Photon misidentification
Sensitivity
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Summary:Diphoton channel provides a clean signature in searches for new physics. In this paper, we discuss a connection between the diphoton channel (γγ) and triboson channels (Zγγ, ZZγ, WWγ) imposed by the SU(2)L×U(1)Y symmetry of the Standard Model (SM) in certain classes of models. To illustrate this idea we choose a simple model that has all these channels. In this model, the same physics can give rise to γ+MET instead of γγ and 2 bosons plus missing energy instead of 3-boson channels. We analyze existing constraints and previous searches and show that channels WWγ and especially Zγ+MET have a potential to discover new physics at the LHC.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2018.08.067