Diboson excess and Z′-predictions via left–right nonlinear Higgs

Author:

Shu Jing1,Yepes Juan1ORCID

Affiliation:

1. State Key Laboratory of Theoretical Physics and Kavli Institute for Theoretical Physics China (KITPC), Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China

Abstract

The excess events reported by the ATLAS collaboration in the WZ-final state, and by the CMS collaboration in the e[Formula: see text]e[Formula: see text]jj, Wh and jj-final states, may be induced by the decays of a heavy boson W[Formula: see text] in the 1.8–2 TeV mass range, here modeled via the larger local group SU(2)L × SU(2)R × U(1)[Formula: see text] in a nonlinear dynamical Higgs scenario. The W[Formula: see text]-production cross-section at the 13 TeV LHC is around 700–1200 fb. This framework also predicts a heavy Z[Formula: see text] boson with a mass of 2.5–4 TeV, and some decay channels testable in the LHC Run II. We determine the cross-section times branching fractions for the dijet, dilepton and top-pair Z[Formula: see text]-decay channels at the 13 TeV LHC around 2.3, 7.1, 70.2 fb, respectively, for M[Formula: see text] = 2.5 TeV, while one/two orders of magnitude smaller for the dijet/dilepton and top-pair modes at M[Formula: see text] = 4 TeV. Nonzero contributions from the effective operators, and the underlying Higgs sector of the model, will induce sizeable enhancement in the W[Formula: see text]W[Formula: see text] and Zh-final states that could be probed in the future LHC Run II.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Modelling top partner-vector resonance phenomenology;Nuclear Physics B;2019-04

2. Top partner-resonance interplay in a composite Higgs framework;International Journal of Modern Physics A;2018-04-20

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