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Title: ATLAS diboson excesses from the stealth doublet model

The ATLAS Collaboration has reported excesses in diboson invariant mass searches of new resonances around 2TeV, which might be a prediction of new physics around that mass range. We interpret these results in the context of a modified stealth doublet model where the extra Higgs doublet has a Yukawa interaction with the first generation quarks, and show that the heavy CP-even Higgs boson can naturally explain the excesses in the WW and ZZ channels with a small Yukawa coupling, ξ ~ 0.15, and a tiny mixing angle with the SM Higgs boson, α ~ 0.05. Moreover, the model satisfies constraints from colliders and electroweak precision measurements.
Authors:
ORCiD logo [1]
  1. Univ. of Massachusetts, Amherst, MA (United States)
Publication Date:
Grant/Contract Number:
SC0011095
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 753; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1228812
Alternate Identifier(s):
OSTI ID: 1242254