2941610 20250902221053.0 oai:cds.cern.ch:2941610 cerncds:FULLTEXT ATL-PHYS-SLIDE-2025-423 eng ATL-COM-PHYS-2025-705 The ATLAS collaboration Recent Heavy resonances searches (including new scalars & BSM Higgs decays) 2025 CERN Geneva 02 Sep 2025 Brost, Liza AUTHOR|(CDS)2083996 Brookhaven National Laboratory (US) elizabeth.brost@cern.ch mult. p Though the Standard Model (SM) of particle physics has been a very successful theory in explaining a wide range of measurements, there are still many questions left unanswered such as incorporation of gravity into SM, neutrino masses, matter-antimatter asymmetry, supersymmetry, or existence of dark matter candidates. One of the possible solutions to address these challenges is the extension of the SM with the presence of additional, heavy BSM particles; including scalar (H/S), pseudoscalar (A), or charged (H+-/H++--) BSM Higgs bosons. This is accounted for in multiple possible new physics models predicting the existence of these new, heavy particles. This talk summarises recent ATLAS searches for Beyond-the-Standard-Model heavy resonances, using the full Run 2 dataset. SLIDE CERN CDS-Invenio WebSubmit Particle Physics - Experiment SzGeCERN Physics SzGeCERN CERN BSM Higgs CERN Resonances CERN HDBS CERN INTNOTE PRIVATLAS PUBLATLASSLIDE CERN LHC ATLAS PH-EP ATLAS Collaboration http://cds.cern.ch/record/2940502 Original Communication (restricted to ATLAS) 2777130 6946835 http://cds.cern.ch/record/2941610/files/ATL-PHYS-SLIDE-2025-423.pdf elizabeth.brost@cern.ch n 202570 91 2939468 madison20250825 PUBLIC 000787719CER PUBLATLASSLIDE Slides