Search for Heavy Higgs Bosons Decaying into Two Tau Leptons with the ATLAS Detector Using pp Collisions at √s = 13 TeV

• Published in: Physical review letters Vol. 125; no. 5; p. 1
• Main Author: Aad, G
• Format: Journal Article
• Language: English
• Published: College Park American Physical Society 2020
• Subjects: Background prediction; boson; Bosons; Confidence intervals; Confidence levels; Decay; expectation; Expectation values; Fractals; Fysik; hadron; Hadrons; Higgs bosons; Integrated luminosity; Large Hadron Collider; lepton; Leptons; luminance; Luminosity; Minimal supersymmetric standard models; Natural Sciences; Naturvetenskap; Neutral Higgs bosons; Particle collisions; Physical Sciences; prediction; Proton proton collisions; Protons; Quarks; Searching; Subatomic Physics; Subatomär fysik; Supersymmetry; The standard model; vacuum
• ISSN: 0031-9007; 1079-7114; 1079-7114
• DOI: 10.1103/PhysRevLett.125.051801

A search for heavy neutral Higgs bosons is performed using the LHC Run 2 data, corresponding to an integrated luminosity of 139     fb−1 of proton-proton collisions at √s = 13 TeV recorded with the ATLAS detector. The search for heavy resonances is performed over the mass range 0.2–2.5 TeV for the τ+ τ− decay with at least one τ -lepton decaying into final states with hadrons. The data are in good agreement with the background prediction of the standard model. In the Mh125 scenario of the minimal supersymmetric standard model, values of tan β > 8 and tan β > 21 are excluded at the 95% confidence level for neutral Higgs boson masses of 1.0 and 1.5 TeV, respectively, where tan β is the ratio of the vacuum expectation values of the two Higgs doublets.