{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.158371.v2","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2940190"}},{"@id":"https://doi.org/10.1007/JHEP05(2026)186","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2025","description":"The results of a search for the production of two scalar bosons in final states with two photons and two tau leptons are presented. The search considers both nonresonant production of a Higgs boson pair, $\\mathrm{HH}$, and resonant production via a new boson $\\mathrm{X}$ which decays either to $\\mathrm{HH}$ or to $\\mathrm{H}$ and a new scalar $\\mathrm{Y}$. The analysis uses up to 138 fb$^{-1}$ of proton-proton collision data, recorded between 2016 and 2018 by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV. No evidence for signal is found in the data. For the nonresonant production, the observed (expected) upper limit at 95% confidence level (CL) on the $\\mathrm{HH}$ production cross section is set at 930 (740) fb, corresponding to 33 (26) times the standard model prediction. At 95% CL, $\\mathrm{HH}$ production is observed (expected) to be excluded for values of $\\kappa_\\lambda$ outside the range between -12 (-9.4) and 17 (15). Observed (expected) upper limits at 95% CL for the $\\mathrm{X} \\to \\mathrm{HH}$ cross section are found to be within 160 to 2200 (200 to 1800) fb, depending on the mass of $\\mathrm{X}$. In the $\\mathrm{X} \\to \\mathrm{YH}$ production scenario, the observed (expected) upper limits vary between  0.059 -1.2 fb (0.87 -0.68 fb) for the $\\mathrm{X} \\to \\mathrm{Y}(\\to\\tau\\tau)\\mathrm{H}(\\to\\gamma\\gamma)$ search. For the $\\mathrm{X} \\to \\mathrm{Y}(\\to\\gamma\\gamma)\\mathrm{H}(\\to\\tau\\tau)$ search the observed (expected) upper limits vary between 0.69 -15 fb (0.73 -8.3 fb) in the low $\\mathrm{Y}$ mass search, tightening constraints on the NMSSM, and between 0.64 -10 fb (0.70 -7.6 fb) in the high $\\mathrm{Y}$ mass search.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t1","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the nonresonant $\\mathrm{HH}$ production cross section, $\\sigma(\\mathrm{pp} \\to \\mathrm{HH})$, as a function...","name":"Nonresonant upper limits"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t2","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the nonresonant $\\mathrm{HH}$ production cross section, $\\sigma(\\mathrm{pp} \\to \\mathrm{HH})$, for thirteen different...","name":"Upper limits on EFT benchmarks"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t3","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new spin-0 particle...","name":"$\\mathrm{X}^{(0)} \\to \\mathrm{HH}$ limits"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t4","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new spin-2 particle...","name":"$\\mathrm{X}^{(2)} \\to \\mathrm{HH}$ limits"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t5","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"$\\text{Y} \\to \\tau\\tau$ limits ($m_\\text{X}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t6","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"$\\text{Y} \\to \\tau\\tau$ limits ($m_\\text{Y}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t7","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"$\\text{Y} \\to \\tau\\tau$ limits (2D)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t8","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"Low-mass $\\text{Y}\\to\\gamma\\gamma$ limits ($m_\\text{X}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t9","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"Low-mass $\\text{Y}\\to\\gamma\\gamma$ limits ($m_\\text{Y}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t10","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"Low-mass $\\text{Y}\\to\\gamma\\gamma$ limits (2D)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t11","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"High-mass $\\text{Y}\\to\\gamma\\gamma$ limits ($m_\\text{X}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t12","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"High-mass $\\text{Y}\\to\\gamma\\gamma$ limits ($m_\\text{Y}$ stacks)"},{"@id":"https://doi.org/10.17182/hepdata.158371.v2/t13","@type":"Dataset","description":"Observed and expected 95% CL upper limits on the cross section for the resonant production of a new scalar particle...","name":"High-mass $\\text{Y}\\to\\gamma\\gamma$ limits (2D)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2940190?version=2"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/158371"}],"inLanguage":"en","name":"Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the $\u03b3\u03b3\u03c4\u03c4$ final state 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/ins2940190?version=2","version":2}