Search for Dark Matter Produced in Association with a Dark Higgs Boson Decaying into ${W}^{\ifmmode\pm\else\textpm\fi{}}{W}^{\ensuremath{\mp}}$ or $ZZ$ in Fully Hadronic Final States from $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$ $pp$ Collisions Recorded with the ATLAS Detector

Open Access

Search for Dark Matter Produced in Association with a Dark Higgs Boson Decaying into $W^{\pm} W^{\mp}$ or $Z Z$ in Fully Hadronic Final States from $\sqrt{s} = 13 TeV$ $p p$ Collisions Recorded with the ATLAS Detector

G. Aad et al. (ATLAS Collaboration)

Phys. Rev. Lett. 126, 121802 – Published 26 March 2021

Abstract

Several extensions of the Standard Model predict the production of dark matter particles at the LHC. An uncharted signature of dark matter particles produced in association with $V V = W^{\pm} W^{\mp}$ or $Z Z$ pairs from a decay of a dark Higgs boson $s$ is searched for using $139 {fb}^{- 1}$ of $p p$ collisions recorded by the ATLAS detector at a center-of-mass energy of 13 TeV. The $s \to V (q \bar{q}) V (q \bar{q})$ decays are reconstructed with a novel technique aimed at resolving the dense topology from boosted $V V$ pairs using jets in the calorimeter and tracking information. Dark Higgs scenarios with $m_{s} > 160 GeV$ are excluded.

Received 15 October 2020
Accepted 19 January 2021

DOI:https://doi.org/10.1103/PhysRevLett.126.121802

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.