Search for a new resonance decaying to a $W$ or $Z$ boson and a Higgs boson in the $\ell \ell /\ell \nu /\nu \nu +b\bar{b}$ final states with the ATLAS Detector

Abstract

A search for a new resonance decaying to a $W$ or $Z$ boson and a Higgs boson in the $\ell \ell /\ell \nu /\nu \nu +b\bar{b}$ final states is performed using 20.3 fb${}^{-1}$ of $pp$ collision data recorded at $\sqrt{s}=$ 8 TeV with the ATLAS detector at the Large Hadron Collider. The search is conducted by examining the $WH/ZH$ invariant mass distribution for a localized excess. No significant deviation from the Standard Model background prediction is observed. The results are interpreted in terms of constraints on the Minimal Walking Technicolor model and on a simplified approach based on a phenomenological Lagrangian of Heavy Vector Triplets.

14 pages plus author list + cover pages (30 pages total), 4 figures, 1 tables, submitted to EPJC, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2013-23/

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