{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.141076.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2679289"}},{"@id":"https://doi.org/10.1007/JHEP10(2023)009","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2023","description":"Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of $\\tau$-leptons with the ATLAS detector.\n\nA search for a new heavy scalar particle $X$ decaying into a Standard Model (SM) Higgs boson and a new singlet scalar particle $S$ is presented. The search uses a proton-proton ($pp$) collision dataset with an integrated luminosity of 140 fb$^{-1}$ recorded at a center-of-mass energy of $\\sqrt{s} = 13$ TeV with the ATLAS detector at the Large Hadron Collider. The explored $X$ masses range from 500 to 1500 \\GeV\\,with the corresponding $S$ mass varying from 200 to 500 GeV. The search selects events with two  hadronically decaying $\\tau$-lepton candidates from $H\\to \\tau^+\\tau^-$ decays and one or two light leptons ($\\ell=e,\\,\\mu$) from $S\\to VV$ ($V = W,\\,Z$) decays. A multivariate discriminant based on event kinematics is used to separate signal from background. No excess events were observed beyond the expected SM background and 95\\% confidence level upper limits between 72 fb and 542 fb are derived on the cross-section for $\\sigma(pp\\to X\\to SH)$ assuming the SM-Higgs boson-like $S\\to VV$ decay. Upper limits on the visible cross-section for $\\sigma(pp\\to X\\to SH \\to WW\\tau\\tau)$ and $\\sigma(pp\\to X\\to SH \\to ZZ\\tau\\tau)$ are also set in the ranges 3--26 fb and 6--33 fb, respectively.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t1","@type":"Dataset","description":"Observed and expected 95% CL upper limits are shown for $\\sigma(pp\\to X\\to SH)$ obtained from $WW1\\ell2\\tau_{\\mathrm{had}}$, $WW2\\ell2\\tau_{\\mathrm{had}}$, $ZZ2\\ell2\\tau_{\\mathrm{had}}$, and their...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t2","@type":"Dataset","description":"Observed and expected 95% CL upper limits are shown for $\\sigma(pp\\to X\\to SH\\to WW\\tau\\tau)$ obtained from the combination of $WW1\\ell2\\tau_{\\mathrm{had}}$...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t3","@type":"Dataset","description":"Observed and expected 95% CL upper limits are shown for $\\sigma(pp\\to X\\to SH\\to ZZ\\tau\\tau)$ obtained from $ZZ2\\ell2\\tau_{\\mathrm{had}}$ channel, as a...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t4","@type":"Dataset","description":"Event yields after a background-only fit and data in the three signal regions. All the backgrounds except the fake $\\tau_{\\mathrm{had}}$...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t5","@type":"Dataset","description":"Uncertainties on $\\sigma(pp\\to X\\to SH)$ obtained from the combined fit to the data for the least and most sensitive mass...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.141076.v1/t6","@type":"Dataset","description":"Summary of observed and expected 95\\% CL upper limits on the production cross-section of $\\sigma(pp\\to X\\to SH)$ in fb in...","name":"Table 6"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2679289?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/141076"}],"inLanguage":"en","name":"Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of $\\tau$-leptons with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2679289?version=1","version":1}