%0 Report %T Search for heavy resonances decaying into a W boson and a Higgs boson in final states with leptons and b-jets in 139 fb<sup>−1</sup> of pp collisions at √s=13 TeV with the ATLAS detector %N ATLAS-CONF-2021-026 %M PUBDB-2021-05305 %M ATLAS-CONF-2021-026 %P 1-23 %D 2021 %Z Preliminary results. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2021-026. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2021-026. Preliminary results. The authors list may be incomplete! %X This note presents a search for a new resonance W′ decaying into a W boson and a 125 GeV Higgs boson H in the <i>l</i>νbb final state, where <i>l</i> = e, or μ, using pp collision data at 13 TeV corresponding to an integrated luminosity of 139 fb<sup>−1</sup> collected by the ATLAS detector at the LHC. The search is conducted by examining the reconstructed invariant mass distributions of W′→ WH candidates in the mass range from 400 GeV to 5 TeV. No significant excess is observed and 95 %K p p: scattering (INSPIRE) %K p p: colliding beams (INSPIRE) %K resonance: production (INSPIRE) %K resonance: heavy (INSPIRE) %K resonance: decay modes (INSPIRE) %K W': decay modes (INSPIRE) %K W: leptonic decay (INSPIRE) %K Higgs particle: hadronic decay (INSPIRE) %K final state: ((n)jet lepton) (INSPIRE) %K jet: bottom (INSPIRE) %K bottom: pair production (INSPIRE) %K bottom: particle identification (INSPIRE) %K ATLAS (INSPIRE) %K channel cross section: branching ratio: upper limit (INSPIRE) %K CERN LHC Coll (INSPIRE) %K mass spectrum (INSPIRE) %K model: triplet (INSPIRE) %K experimental results (INSPIRE) %K W' --> W Higgs particle (INSPIRE) %K 13000 GeV-cms (INSPIRE) %F PUB:(DE-HGF)29 %9 Report %R 10.3204/PUBDB-2021-05305 %U https://bib-pubdb1.desy.de/record/472854