{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.127896.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2072831"}},{"@id":"https://doi.org/10.1007/JHEP05(2023)233","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2022","description":"Results are presented from a search for the Higgs boson decay $\\mathrm{H}\\to\\mathrm{Z}\\gamma$, where $\\mathrm{Z}\\to\\ell^+\\ell^-$ with $\\ell=\\mathrm{e}$ or $\\mu$. The search is performed using a sample of proton-proton ($\\mathrm{pp}$) collision data at a center-of-mass energy of $13~\\mathrm{TeV}$, recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of $138~\\mathrm{fb}^{-1}$. Events are assigned to mutually exclusive categories, which exploit differences in both event topology and kinematics of distinct Higgs production mechanisms to enhance signal sensitivity. The signal strength $\\mu$, defined as the product of the cross section and the branching fraction [$\\sigma(\\mathrm{pp}\\to\\mathrm{H})\\mathcal{B}(\\mathrm{H}\\to\\mathrm{Z}\\gamma)$] relative to the standard model prediction, is extracted from a simultaneous fit to the \\llg invariant mass distributions in all categories and is found to be $\\mu= 2.4\\pm0.9$ for a Higgs boson mass of $125.38~\\mathrm{GeV}$. The statistical significance of the observed excess of events is 2.7 standard deviations. This measurement corresponds to $\\sigma(\\mathrm{pp}\\to\\mathrm{H})\\mathcal{B}(\\mathrm{H}\\to\\mathrm{Z}\\gamma)=0.21\\pm0.08~\\mathrm{pb}$. The observed (expected) upper limit at 95% confidence level on $\\mu$ is $4.1$ ($1.8$). The ratio of branching fractions $\\mathcal{B}(\\mathrm{H}\\to\\mathrm{Z}\\gamma)/\\mathcal{B}(\\mathrm{H}\\to\\gamma\\gamma)$ is measured to be $1.5^{+0.7}_{-0.6}$, which agrees with the standard model prediction of $0.69 \\pm 0.04$ at the 1.5 standard deviation level.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t1","@type":"Dataset","description":"The $\\mathcal{D}_{\\mathrm{VBF}}$ distributions for signal, simulated background, and data. The $\\mathcal{D}_{\\mathrm{VBF}}$ distribution includes only dijet-tagged events. The sum of contributions...","name":"Figure 2a"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t2","@type":"Dataset","description":"The $\\mathcal{D}_{\\mathrm{kin}}$ distributions for signal, simulated background, and data. The $\\mathcal{D}_{\\mathrm{kin}}$ distribution includes only untagged events. The sum of contributions...","name":"Figure 2b"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t3","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the lepton-tagged categories. In the upper panel, the red solid line shows the...","name":"Figure003-a"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t4","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the dijet-1 categories. In the upper panel, the red solid line shows the...","name":"Figure003-b"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t5","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the dijet-2 categories. In the upper panel, the red solid line shows the...","name":"Figure003-c"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t6","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the dijet-3 categories. In the upper panel, the red solid line shows the...","name":"Figure003-d"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t7","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the untagged 1 categories. In the upper panel, the red solid line shows...","name":"Figure004-a"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t8","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the untagged 2 categories. In the upper panel, the red solid line shows...","name":"Figure004-b"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t9","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the untagged 3 categories. In the upper panel, the red solid line shows...","name":"Figure004-c"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t10","@type":"Dataset","description":"Fits to the $m_{\\ell^+\\ell^-\\gamma}$ data distribution in the untagged 4 categories. In the upper panel, the red solid line shows...","name":"Figure004-d"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t11","@type":"Dataset","description":"Observed signal strength ($\\mu$) for a SM Higgs boson at 125.38 GeV. The labels untagged combined,dijet combined and combined represent...","name":"Figure006"},{"@id":"https://doi.org/10.17182/hepdata.127896.v1/t12","@type":"Dataset","description":"Upper limit (95% CL) on the signal strength ($\\mu$) relative to the SM prediction, as a function of the assumed...","name":"Figure007"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2072831?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/127896"}],"inLanguage":"en","name":"Search for Higgs boson decays to a Z boson and a photon in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2072831?version=1","version":1}