{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.111057.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1954278"}},{"@id":"https://doi.org/10.1007/JHEP03(2022)041","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2021","description":"Searches are conducted for new spin-0 or spin-1 bosons using events   where a Higgs boson with mass $125$ GeV decays to four leptons ($\\ell =$ $e$, $\\mu$). This decay is presumed to occur via an intermediate state which contains two on-shell, promptly decaying bosons $H \\rightarrow XX/ZX \\rightarrow 4\\ell$, where the new boson $X$ has a mass between 1 and 60 GeV. The search  uses $pp$ collision data collected with the ATLAS detector at the LHC with an integrated luminosity of 139 fb$^{-1}$ at a centre-of-mass energy $\\sqrt{s}=13$ TeV. The data are found to be consistent with Standard Model expectations. Limits are set on fiducial cross sections and on the branching ratio of the Higgs boson to decay to $XX/ZX$.  Limits are also set on mixing parameters relevant in extensions of the Standard Model containing a dark sector where $X$ is interpreted to be a dark boson.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t1","@type":"Dataset","description":"Distribution of $\\langle m_{\\ell\\ell}\\rangle$ for events selected in the HM $H\\to XX \\to 4\\ell$ $\\, ( 15 \\,\\text{GeV} < m_{X}...","name":"$\\langle m_{\\ell\\ell}\\rangle$ distribution in the HM SR"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t2","@type":"Dataset","description":"Distribution of $\\langle m_{\\ell\\ell}\\rangle$ for events selected in the LM $H\\to XX \\to 4\\mu$ $( 1 \\,\\text{GeV} < m_{X} <...","name":"$\\langle m_{\\ell\\ell}\\rangle$ distribution in the LM SR"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t3","@type":"Dataset","description":"Distribution of $m_{34}$ for data and background events in the mass range $115 \\,\\text{GeV} < m_{4\\ell} < 130 \\,\\text{GeV}$ after...","name":"$m_{34}$ distribution in the $ZX$ signal region"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t4","@type":"Dataset","description":"Data from Figure 11a","name":"Low and High Mass Efficiencies, $4\\mu$ final state"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t5","@type":"Dataset","description":"Model-independent per-channel efficiencies calculated in the fiducial volume of the High Mass channel for the $2e2\\mu$ final state.","name":"High Mass Efficiency, $2e2\\mu$ final state"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t6","@type":"Dataset","description":"Model-independent per-channel efficiencies calculated in the fiducial volume of the High Mass channel for the $4e$ final state.","name":"High Mass Efficiency, $4e$ final state"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t7","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to aa\\to 4\\mu$ process. The regions of 2 GeV to 4.4 GeV, and...","name":"Low and High Mass Acceptance, $aa / ss \\to 4\\mu$"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t8","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to Z_dZ_d\\to 4\\ell$ process. The regions of 2 GeV to 4.4 GeV, and...","name":"High Mass Acceptance, $Z_dZ_d \\to 4\\mu$"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t9","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to Z_dZ_d\\to 2e2\\mu$ process.","name":"High Mass Acceptance, $Z_dZ_d \\to 2e2\\mu$"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t10","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to Z_dZ_d\\to 4e$ process.","name":"High Mass Acceptance, $Z_dZ_d \\to 4e$"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t11","@type":"Dataset","description":"Upper limits at 95% CL on fiducial cross-sections for the $H\\rightarrow XX \\rightarrow 4\\mu$ process. The step change at $m_X$...","name":"Fiducial $H\\to XX \\to 4\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t12","@type":"Dataset","description":"Upper limits at 95% CL on fiducial cross-sections for the $H\\rightarrow XX \\rightarrow 4e$ process.","name":"Fiducial $H\\to XX \\to 4e$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t13","@type":"Dataset","description":"Upper limits at 95% CL on fiducial cross-sections for the $H\\rightarrow XX \\rightarrow 2e2\\mu$ process.","name":"Fiducial $H\\to XX \\to 2e2\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t14","@type":"Dataset","description":"Observed and expected upper limits at 95% CL for the cross section of the $H\\to Z_dZ_d\\to 4\\ell$ process, assuming SM...","name":"$gg \\to H\\to Z_dZ_d\\to 4\\ell$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t15","@type":"Dataset","description":"Observed and expected upper limits at 95% CL for the cross sections of the $H\\to Z_dZ_d\\to 4\\mu$ processes, assuming SM...","name":"$gg \\to H\\to Z_dZ_d\\to 4\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t16","@type":"Dataset","description":"Observed and expected upper limits at 95% CL for the cross sections of the $H\\to aa\\to 4\\mu$ processes, assuming SM...","name":"$gg \\to H\\to aa \\to 4\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t17","@type":"Dataset","description":"Model-independent efficiencies for the $H\\to ZX$ process for the $4\\mu$ and $2e2\\mu$ final states combined calculated in the $ZX$ fiducial...","name":"ZX Efficiency; $4\\mu, 2e2\\mu$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t18","@type":"Dataset","description":"Model-independent efficiencies for the $H\\to ZX$ process for the $4\\mu$, $2e2\\mu$, $2\\mu 2e$, and $4e$ final states combined calculated in...","name":"ZX Efficiency; $4\\mu, 2e2\\mu, 2\\mu2e, 4e$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t19","@type":"Dataset","description":"Model-independent efficiencies for the $H\\to ZX$ process for the $2\\mu 2e$, and $4e$ final states combined calculated in the $ZX$...","name":"ZX Efficiency; $2\\mu2e, 4e$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t20","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to ZZ_d\\to 4\\ell$ process for the $4\\mu$, and $2e2\\mu$ final states.","name":"ZX Acceptance; $4\\mu, 2e2\\mu$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t21","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to ZZ_d\\to 4\\ell$ process for the $4\\mu$, $2e2\\mu$, $2\\mu 2e$, and $4e$ final...","name":"ZX Acceptance; $4\\mu, 2e2\\mu, 2\\mu2e, 4e$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t22","@type":"Dataset","description":"Model-dependent per-channel fiducial region acceptances for the $H\\to ZZ_d\\to 4\\ell$ process for the $2\\mu 2e$, and $4e$ final states.","name":"ZX Acceptance; $2\\mu2e, 4e$ final states"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t23","@type":"Dataset","description":"Per-channel upper limit at 95% CL on the fiducial cross-section for the $H\\rightarrow ZX \\to 2\\ell2e$ process.","name":"Fiducial $H\\to ZX \\to 2\\ell2e$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t24","@type":"Dataset","description":"Per-channel upper limit at 95% CL on the fiducial cross-section for the $H\\rightarrow ZX \\to 2\\ell2\\mu$ process.","name":"Fiducial $H\\to ZX \\to 2\\ell2\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t25","@type":"Dataset","description":"Observed and expected upper limits at 95% CL for the cross sections of the $H\\to ZZ_d\\to 4\\ell$ process, assuming SM...","name":"$gg \\to H\\to ZZ_d \\to 4\\ell$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t26","@type":"Dataset","description":"Observed and expected upper limits at 95% CL for the cross sections of the $H\\to Za\\to 2\\ell2\\mu$ process, assuming SM...","name":"$gg \\to H\\to Za \\to 4\\mu$ limits"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t27","@type":"Dataset","description":"95% CL upper limits on the cross section times the model-dependent branching ratio divided by the SM Higgs boson production...","name":"Limits on the $H \\to Z_dZ_d$ branching ratio"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t28","@type":"Dataset","description":"95% CL upper limits on the cross section times the model-dependent branching ratio divided by the SM Higgs boson production...","name":"Limits on the $H \\to aa$ branching ratio"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t29","@type":"Dataset","description":"Upper limit at 95% CL on the effective Higgs mixing parameter $\\kappa^\\prime=\\kappa \\, m_H^2 / |m_H^2-m_S^2|$. The regions of 2...","name":"Limits on the effective Higgs mixing parameter"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t30","@type":"Dataset","description":"Upper limit at 95% CL on the $Z_d$ kinetic mixing parameter $\\epsilon$, assuming the SM Higgs boson production cross section.","name":"Limits on the kinematic mixing parameter"},{"@id":"https://doi.org/10.17182/hepdata.111057.v1/t31","@type":"Dataset","description":"Upper limit at 95% CL on the $Z$-$Z_d$ mass mixing parameter $\\delta^2 \\times \\textrm{BR}(Z_d\\to \\ell\\ell)$, assuming the SM Higgs boson...","name":"Limits on the mass mixing parameter"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1954278?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/111057"}],"inLanguage":"en","name":"Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb$^{-1}$ of $pp$ collision data at $\\sqrt{s}=13$ TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1954278?version=1","version":1}