English

Unitarity sum rules, three site moose model, and the ATLAS 2 TeV diboson anomalies

High Energy Physics - Phenomenology 2015-09-23 v3 High Energy Physics - Experiment

Abstract

We investigate WW' interpretations for the ATLAS 2 TeV diboson anomalies. The roles of the unitarity sum rules, which ensure the perturbativity of the longitudinal vector boson scattering amplitudes, are emphasized. We find the unitarity sum rules and the custodial symmetry are powerful enough to predict various nontrivial relations among WWZWWZ', WZWWZW', WWhWWh, WWhWW'h and ZZhZZ'h coupling strengths in a model independent manner. We also perform surveys in the general parameter space of WW' models and find the ATLAS 2 TeV diboson anomalies may be interpreted as a WW' particle of the three site moose model, i.e., a Kaluza-Klein like particle in a deconstructed extra dimension model. It is also shown that the non standard-model-like Higgs boson is favored by the present data to interpret the ATLAS diboson anomalies as the consequences of the WW' and ZZ' bosons.

Keywords

Cite

@article{arxiv.1507.01185,
  title  = {Unitarity sum rules, three site moose model, and the ATLAS 2 TeV diboson anomalies},
  author = {Tomohiro Abe and Ryo Nagai and Shohei Okawa and Masaharu Tanabashi},
  journal= {arXiv preprint arXiv:1507.01185},
  year   = {2015}
}

Comments

14 pages, 5 figures; EWPT analysis added, references improved, version accepted in PRD