In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2018, No. 3 ( 2018-03)
Abstract:
A search is conducted for new resonances decaying into a W or Z boson and a 125 GeV Higgs boson in the $$ \nu \overline{\nu}b\overline{b} $$ ν ν ¯ b b ¯ , $$ {\ell}^{\pm}\nu b\overline{b} $$ ℓ ± ν b b ¯ , and $$ {\ell}^{+}{\ell}^{-}b\overline{b} $$ ℓ + ℓ − b b ¯ final states, where ℓ ± = e ± or μ ± , in pp collisions at $$ \sqrt{s}=13 $$ s = 13 TeV. The data used correspond to a total integrated luminosity of 36.1 fb −1 collected with the ATLAS detector at the Large Hadron Collider during the 2015 and 2016 data-taking periods. The search is conducted by examining the reconstructed invariant or transverse mass distributions of W h and Zh candidates for evidence of a localised excess in the mass range of 220 GeV up to 5 TeV. No significant excess is observed and the results are interpreted in terms of constraints on the production cross-section times branching fraction of heavy W ′ and Z ′ resonances in heavy-vector-triplet models and the CP-odd scalar boson A in two-Higgs-doublet models. Upper limits are placed at the 95% confidence level and range between 9 . 0 × 10 −4 pb and 7 . 3 × 10 −1 pb depending on the model and mass of the resonance.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP03(2018)174
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2018
detail.hit.zdb_id:
2027350-2
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