{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.102452.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1822910"}},{"@id":"https://doi.org/10.1007/JHEP02(2021)201","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"NA62 Collaboration"},"creator":{"@type":"Organization","name":"NA62 Collaboration"},"datePublished":"2021","description":"CERN-SPS NA62 experiment. Upper limits at 90% CL on the branching ratio for the decay K+ -> pi+X vs mass for a set of rest lifetime values tau_X of an invisible particle X. Exclusion limits as ALP/dark scalar production searches, as a function of the coupling g_Y/sin^2theta vs mass. Two curves for the ALP search, corresponding to ALP widths dominated by coupling to SM fermions or to invisible particles.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.102452.v1/t1","@type":"Dataset","description":"The expected upper limit refers to absence of signal.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.102452.v1/t2","@type":"Dataset","description":"See caption of Fig 6.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.102452.v1/t3","@type":"Dataset","description":"ALP width dominantly visible, see caption of Fig 7.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.102452.v1/t4","@type":"Dataset","description":"ALP width dominantly invisible, see caption of Fig 7.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.102452.v1/t5","@type":"Dataset","description":"scalar production search, see caption of Fig 8.","name":"Table 5"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1822910?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/102452"}],"inLanguage":"en","name":"Search for $\\pi^0$ decays to invisible particles","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1822910?version=1","version":1}