Evidence of the true Higgs boson $H_T$ at the LHC Run 2

Abstract

The aim of the present note is to compare the recent LHC data at $\sqrt{s}=13TeV$ with our previous theoretical proposal that the true Higgs boson $H_T$ should be a broad heavy resonance with mass around $750GeV$. We focus on the so-called golden channel $H_T\to ZZ$ where the pair of Z bosons decay leptonically to ${\ell }^{+}{\ell }^{-}{\ell }^{+}{\ell }^{-}$, $\ell$ being either an electron or a muon. We use the data collected by the ATLAS and CMS Collaborations at $\sqrt{s}=13TeV$ with an integrated luminosity of $36.1f{b}^{-1}$ and $77.4f{b}^{-1}$ respectively. We find that the experimental data from both the LHC Collaborations do display in the golden channel a rather broad resonance structure around $700GeV$ with a sizeable statistical significance. Our theoretical expectations seem to be in fair good agreement with the experimental observations. Combining the data from both the ATLAS and CMS Collaborations we obtain an evidence of the heavy Higgs boson in this channel with an estimated statistical significance of more than five standard deviations.

Modern Physics Letters A Vol. 33, No. 1 (2019) 1950137 (9 pages) DOI: 10.1142/S0217732319501372. arXiv admin note: substantial text overlap with arXiv:1707.05605, arXiv:1609.09612

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• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Search for heavy $ZZ$ resonances in the ${\ell }^{+}{\ell }^{-}{\ell }^{+}{\ell }^{-}$ and ${\ell }^{+}{\ell }^{-}\nu \bar{\nu }$ final states using proton proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• An alternative heavy Higgs mass limit

Cited by in corpus (5)

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• Explaining excesses in four-leptons at the LHC with a double peak from a CP violating Two Higgs Doublet Model
• Robustness of ARS Leptogenesis in Scalar Extensions
• The Higgs condensate as a quantum liquid