{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.158634.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2931458"}},{"@id":"https://doi.org/10.1103/zc76-rgcp","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2025","description":"A search for the rare decay D0->mumu is reported using proton-proton collision events at sqrt{s} = 13.6 TeV collected by the CMS detector in 2022--2023, corresponding to an integrated luminosity of 64.5 fb-1. This is the first analysis to use a newly developed inclusive dimuon trigger, expanding the scope of the CMS flavor physics program. The search uses D0 mesons obtained from D*+->D0 pi+ decays. No significant excess is observed. A limit on the branching fraction of B(D0->mumu) < 2.4*10^{-9} at 95% confidence level is set. This represents the most stringent upper limit to date,","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t1","@type":"Dataset","description":"Summary of branching fraction.","name":"Main result"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t2","@type":"Dataset","description":"Summary of systematic uncertainties for the D->mumu branching fraction measurement with their corresponding contributions in the signal channel.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t3","@type":"Dataset","description":"The distributions of the dipion invariant mass $m_{\\pi\\pi}$ for the normalization channel in data.","name":"Figure 1 (a)"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t4","@type":"Dataset","description":"The distributions of the $\\mathrm{D}^{*}-\\mathrm{D}^0$ mass difference $\\Delta m$ for the normalization channel in data.","name":"Figure 1 (b)"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t5","@type":"Dataset","description":"The distributions of the dimuon invariant mass $m_{\\mu\\mu}$ for the signal channel in data with the requirement $0.145<\\Delta m<0.146$ GeV.","name":"Figure 2 (a)"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t6","@type":"Dataset","description":"The distributions of the $\\mathrm{D}^{*}-\\mathrm{D}^0$ mass difference $\\Delta m$ for the signal channel in data with the requirement $1.84<m_{\\mu\\mu}<1.89$ GeV.","name":"Figure 2 (b)"},{"@id":"https://doi.org/10.17182/hepdata.158634.v1/t7","@type":"Dataset","description":"The post-fit event yields for the signal, the combinatorial background, the $\\mathrm{D}^0\\to\\pi^+\\pi^-$ background, and the $\\mathrm{D}^0\\to\\pi^-\\mu^+\\nu$ background. The observed numbers...","name":"Table 2"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2931458?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/158634"}],"inLanguage":"en","name":"Search for the rare decay D$^0$ $\\to$ $\\mu^+\\mu^-$ in proton-proton collisions at $\\sqrt{s}$ = 13.6 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2931458?version=1","version":1}