{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.153520.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2807458"}},{"@id":"https://doi.org/10.1007/JHEP11(2024)036","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2024","description":"A search for neutral long-lived particles (LLPs) decaying in the ATLAS hadronic calorimeter using 140~fb$^{-1}$ of proton--proton collisions at $\\sqrt{s}=13$ TeV delivered by the LHC is presented. The analysis is composed of three channels. The first targets pair-produced LLPs, where at least one LLP is produced with sufficiently low boost that its decay products can be resolved as separate jets. The second and third channels target LLPs respectively produced in association with a $W$ or $Z$ boson that decays leptonically. In each channel, different search regions target different kinematic regimes, to cover a broad range of LLP mass hypotheses and models. No excesses of events relative to the background predictions are observed. Higgs boson branching fractions to pairs of hadronically decaying neutral LLPs larger than 1% are excluded at 95% confidence level for proper decay lengths in the range of 30~cm to 4.5~m depending on the LLP mass, a factor of three improvement on previous searches in the hadronic calorimeter. The production of long-lived dark photons in association with a $Z$ boson with cross-sections above 0.1~pb is excluded for dark photon mean proper decay lengths in the range of 20~cm to 50~m, improving previous ATLAS results by an order of magnitude. Finally, long-lived photo-phobic axion-like particle models are probed for the first time by ATLAS, with production cross-sections above 0.1~pb excluded in the 0.1~mm to 10~m range.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t1","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 8a"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t2","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 8b"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t3","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 8c"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t4","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 9a"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t5","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 9b"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t6","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 10a"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t7","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 10b"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t8","@type":"Dataset","description":"Observed (solid line) and expected (dashed line) upper limits at the 95% CL on the cross-section times branching fraction as...","name":"Figure 10c"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t9","@type":"Dataset","description":"Summary of the observed (solid line) and expected (dashed line) upper limits at the 95% CL on CG as a...","name":"Figure 11a"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t10","@type":"Dataset","description":"Summary of the observed (solid line) and expected (dashed line) upper limits at the 95% CL on CG as a...","name":"Figure 11b"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t11","@type":"Dataset","description":"Regions in the ALP mass versus its coupling to gluons scaled by the ALP energy scale gagg=4CG/fa excluded at 95%...","name":"Figure 12a"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t12","@type":"Dataset","description":"Regions in the ALP mass versus its coupling to gluons scaled by the ALP energy scale gagg=4CG/fa excluded at 95%...","name":"Figure 12b"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t13","@type":"Dataset","description":"Signal efficiencies as a function of cτ for HS signals in the CalR+2J channel for samples with mediator masses (a)...","name":"Figure 8a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t14","@type":"Dataset","description":"Signal efficiencies as a function of cτ for HS signals in the CalR+2J channel for samples with mediator masses (a)...","name":"Figure 8b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t15","@type":"Dataset","description":"Signal efficiencies as a function of cτ for WALP and WHS signals in the CalR+W channel for (a) the WALP...","name":"Figure 9a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t16","@type":"Dataset","description":"Signal efficiencies as a function of cτ for WALP and WHS signals in the CalR+W channel for (a) the WALP...","name":"Figure 9b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t17","@type":"Dataset","description":"Signal efficiencies as a function of cτ for WALP and WHS signals in the CalR+W channel for (a) the WALP...","name":"Figure 9c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t18","@type":"Dataset","description":"Signal efficiencies as a function of cτ for ZALP, HZZd and ZHS signals in the CalR+Z channel for (a, b)...","name":"Figure 10a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t19","@type":"Dataset","description":"Signal efficiencies as a function of cτ for ZALP, HZZd and ZHS signals in the CalR+Z channel for (a, b)...","name":"Figure 10b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t20","@type":"Dataset","description":"Signal efficiencies as a function of cτ for ZALP, HZZd and ZHS signals in the CalR+Z channel for (a, b)...","name":"Figure 10c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t21","@type":"Dataset","description":"Signal efficiencies as a function of cτ for ZALP, HZZd and ZHS signals in the CalR+Z channel for (a, b)...","name":"Figure 10d of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t22","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t23","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t24","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t25","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11d of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t26","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11e of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t27","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11f of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t28","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11g of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t29","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11h of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t30","@type":"Dataset","description":"95% CL expected (dashed black line) and observed (solid line) upper limits on the cross-section times branching fraction in the...","name":"Figure 11i of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t31","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) upper limits on the cross-section times branching fraction in the WHS...","name":"Figure 12a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t32","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) upper limits on the cross-section times branching fraction in the WHS...","name":"Figure 12b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t33","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) upper limits on the cross-section times branching fraction in the WHS...","name":"Figure 12c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t34","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) upper limits on the cross-section times branching fraction in the WHS...","name":"Figure 12d of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t35","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) upper limits on the cross-section times branching fraction in the WHS...","name":"Figure 12e of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t36","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the low-ET WHS selection for...","name":"Figure 13a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t37","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the low-ET WHS selection for...","name":"Figure 13b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t38","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the low-ET WHS selection for...","name":"Figure 13c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t39","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14a of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t40","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14b of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t41","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14c of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t42","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14d of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t43","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14e of Auxiliary Material"},{"@id":"https://doi.org/10.17182/hepdata.153520.v1/t44","@type":"Dataset","description":"95% CL expected (dashed line) and observed (solid line) limits on the branching fraction in the CalR+Z channel for benchmark...","name":"Figure 14f of Auxiliary Material"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2807458?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/153520"}],"inLanguage":"en","name":"Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using $pp$ collisions at $\\sqrt{s}=13$ TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2807458?version=1","version":1}