ATLAS diboson excesses from the stealth doublet model

Journal Article · Mon Feb 01 00:00:00 EST 2016 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2015.12.007· OSTI ID:1228812

Chao, Wei

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.

• Research Organization: Univ. of Massachusetts, Amherst, MA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: SC0011095
• OSTI ID: 1228812
• Alternate ID(s): OSTI ID: 1242254
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Vol. 753 Journal Issue: C; ISSN 0370-2693
• Publisher: Elsevier
• Country of Publication: Netherlands
• Language: English

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