Search for heavy resonances decaying to a <i>W</i> or Z boson and a Higgs boson in the <i>q(q)over-bar</i><SUP>(′)</SUP><i>b(b)over-bar</i> final state in <i>pp</i> collisions at √<i>s =</i>13 TeV with the ATLAS detector



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2863 more authors) (2017) Search for heavy resonances decaying to a <i>W</i> or Z boson and a Higgs boson in the <i>q(q)over-bar</i><SUP>(′)</SUP><i>b(b)over-bar</i> final state in <i>pp</i> collisions at √<i>s =</i>13 TeV with the ATLAS detector. PHYSICS LETTERS B, 774. pp. 494-515.

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Abstract

A search for heavy resonances decaying to a $W$ or $Z$ boson and a Higgs boson in the $q\bar{q}^{(\prime)}b\bar{b}$ final state is described. The search uses 36.1 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} =$ 13 TeV collected by the ATLAS detector at the CERN Large Hadron Collider in 2015 and 2016. The data are in agreement with the Standard Model expectations, with the largest excess found at a resonance mass of 3.0 TeV with a local (global) significance of 3.3 (2.1) $\sigma$. The results are presented in terms of constraints on a simplified model with a heavy vector triplet. Upper limits are set on the production cross-section times branching ratio for resonances decaying to a $W$ ($Z$) boson and a Higgs boson, itself decaying to $b\bar{b}$, in the mass range between 1.1 and 3.8 TeV; the limits range between 83 and 1.6 fb (77 and 1.1 fb) at 95% confidence level.

Item Type: Article
Additional Information: Comments: 18 pages plus author list + cover pages (36 pages total), 5 figures, 4 tables, submitted to PLB, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-12/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2017 09:15
Last Modified: 19 Oct 2023 08:53
DOI: 10.1016/j.physletb.2017.09.066
Open Access URL: http://doi.org/10.1016/j.physletb.2017.09.066
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3014278