{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.135829.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2654099"}},{"@id":"https://doi.org/10.1103/PhysRevD.108.012012","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2023","description":"A search is presented for displaced production of Higgs bosons or $Z$ bosons, originating from the decay of a neutral long-lived particle (LLP) and reconstructed in the decay modes $H\\rightarrow \\gamma\\gamma$ and $Z\\rightarrow ee$. The analysis uses the full Run 2 data set of proton$-$proton collisions delivered by the LHC at an energy of $\\sqrt{s}=13$ TeV between 2015 and 2018 and recorded by the ATLAS detector, corresponding to an integrated luminosity of 139 fb$^{-1}$. Exploiting the capabilities of the ATLAS liquid argon calorimeter to precisely measure the arrival times and trajectories of electromagnetic objects, the analysis searches for the signature of pairs of photons or electrons which arise from a common displaced vertex and which arrive after some delay at the calorimeter. The results are interpreted in a gauge-mediated supersymmetry breaking model with pair-produced higgsinos that decay to LLPs, and each LLP subsequently decays into either a Higgs boson or a $Z$ boson. The final state includes at least two particles that escape direct detection, giving rise to missing transverse momentum. No significant excess is observed above the background expectation. The results are used to set upper limits on the cross section for higgsino pair production, up to a $\\tilde\\chi^0_1$ mass of 369 (704) GeV for decays with 100% branching ratio of $\\tilde\\chi^0_1$ to Higgs ($Z$) bosons for a $\\tilde\\chi^0_1$ lifetime of 2 ns. A model-independent limit is also set on the production of pairs of photons or electrons with a significant delay in arrival at the calorimeter.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t1","@type":"Dataset","description":"Average timing distributions for SR data and the estimated background as determined by the background-only fit, in each of the...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t2","@type":"Dataset","description":"Average timing distributions for SR data and the estimated background as determined by the background-only fit, in each of the...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t3","@type":"Dataset","description":"Average timing distributions for SR data and the estimated background as determined by the background-only fit, in each of the...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t4","@type":"Dataset","description":"Average timing distributions for SR data and the estimated background as determined by the background-only fit, in each of the...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t5","@type":"Dataset","description":"Average timing distributions for SR data and the estimated background as determined by the background-only fit, in each of the...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t6","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t7","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t8","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t9","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t10","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t11","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t12","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t13","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t14","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t15","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 15"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t16","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 16"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t17","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 17"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t18","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 18"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t19","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 19"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t20","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 20"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t21","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ mass (left) and $\\tilde\\chi^0_1$...","name":"Table 21"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t22","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ branching ratio to the...","name":"Table 22"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t23","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ branching ratio to the...","name":"Table 23"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t24","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ branching ratio to the...","name":"Table 24"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t25","@type":"Dataset","description":"The 95% CL limits on $\\sigma(pp \\rightarrow \\tilde\\chi^0_1 \\tilde\\chi^0_1$) in fb as a function of $\\tilde\\chi^0_1$ branching ratio to the...","name":"Table 25"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t26","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 26"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t27","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 27"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t28","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 28"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t29","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 29"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t30","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 38"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t31","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 46"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t32","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 54"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t33","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 62"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t34","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 66"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t35","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 67"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t36","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 68"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t37","@type":"Dataset","description":"The 95% CL exclusion limits on the target signal hypothesis, for $\\tilde\\chi^0_1$ lifetime in ns as a function of $\\tilde\\chi^0_1$...","name":"Table 69"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t38","@type":"Dataset","description":"Cutflow for an example higgsino signal with mass 225 GeV and lifetime 10 ns, in the H decay mode. Acceptance...","name":"Table 70"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t39","@type":"Dataset","description":"Cutflow for an example higgsino signal with mass 225 GeV and lifetime 10 ns, in the Z decay mode. Acceptance...","name":"Table 71"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t40","@type":"Dataset","description":"Cutflow for an example higgsino signal with mass 225 GeV and lifetime 2 ns, in the H decay mode. Acceptance...","name":"Table 72"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t41","@type":"Dataset","description":"Cutflow for an example higgsino signal with mass 225 GeV and lifetime 2 ns, in the Z decay mode. Acceptance...","name":"Table 73"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t42","@type":"Dataset","description":"Acceptance across the H decay mode signal grid, calculated using truth information. The selection applied corresponds to the model-independent signal...","name":"Table 74"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t43","@type":"Dataset","description":"Acceptance across the Z decay mode signal grid, calculated using truth information. The selection applied corresponds to the model-independent signal...","name":"Table 75"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t44","@type":"Dataset","description":"Efficiency across the H decay mode signal grid, calculated using reco information. The selection applied corresponds to the model-independent signal...","name":"Table 76"},{"@id":"https://doi.org/10.17182/hepdata.135829.v1/t45","@type":"Dataset","description":"Efficiency across the Z decay mode signal grid, calculated using reco information. The selection applied corresponds to the model-independent signal...","name":"Table 77"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2654099?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/135829"}],"inLanguage":"en","name":"Search in diphoton and dielectron final states for displaced production of Higgs or $Z$ bosons with the ATLAS detector in $\\sqrt{s} = 13$ TeV $pp$ collisions","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2654099?version=1","version":1}