{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.76839.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1495026"}},{"@id":"https://doi.org/10.1007/JHEP01(2017)117","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2017","description":"Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states $X(3872)$ and  $\\psi(2S)$, in the decay mode $J/\\psi \\pi^+\\pi^-$, measured using 11.4~fb$^{-1}$ of $pp$ collisions at $\\sqrt{s} = 8$~TeV by the ATLAS detector at the LHC. The ratio of cross-sections $X(3872)/\\psi(2S)$ is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of $X(3872)$ and $\\psi(2S)$. Assuming independent single effective lifetimes for non-prompt $X(3872)$ and $\\psi(2S)$ production gives $R_B =  \\frac{\\mathcal{B}(B \\rightarrow X(3872)\\textrm{ + any}) \\mathcal{B}(X(3872) \\rightarrow J\\psi\\pi^+\\pi^-)}{\\mathcal{B}(B \\rightarrow \\psi(2S)\\textrm{ + any}) \\mathcal{B}(\\psi(2S) \\rightarrow J\\psi\\pi^+\\pi^-)} = (3.95 \\pm 0.32 \\mathrm{(stat)} \\pm 0.08\\mathrm{(sys)})  \\times 10^{-2}$, while separating short- and long-lived contributions, assuming that the short-lived component is due to $B_c$ decays, gives $R_B = (3.57 \\pm 0.33\\mathrm{(stat)} \\pm 0.11\\mathrm{(sys)}) \\times 10^{-2}$, with the fraction of non-prompt $X(3872)$ produced via $B_c$ decays for $p_\\mathrm{T}(X(3872)) > 10$~GeV being $(25 \\pm 13\\mathrm{(stat)} \\pm 2\\mathrm{(sys)} \\pm 5\\mathrm{(spin)})\\%$. The distributions of the dipion invariant mass in the $X(3872)$ and  $\\psi(2S)$ decays are also measured and compared to theoretical predictions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t1","@type":"Dataset","description":"Measured effective pseudo-proper lifetime for non-prompt $\\psi(2S)$ production.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t2","@type":"Dataset","description":"Measured effective pseudo-proper lifetime for non-prompt $X(3872)$ production.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t3","@type":"Dataset","description":"Measured non-prompt $X(3872) / \\psi(2S)$ production ratio using the single-lifetime fit model.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t4","@type":"Dataset","description":"Measured prompt $X(3872) / \\psi(2S)$ production ratio using the two-lifetime fit model.","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t5","@type":"Dataset","description":"Measured non-prompt $X(3872) / \\psi(2S)$ production ratio using the two-lifetime fit model.","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t6","@type":"Dataset","description":"Measured short-lived non-prompt $X(3872)$ / total non-prompt $\\psi(2S)$ production ratio using the two-lifetime fit model.","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t7","@type":"Dataset","description":"Measured long-lived non-prompt $X(3872)$ / total non-prompt $\\psi(2S)$ production ratio using the two-lifetime fit model.","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t8","@type":"Dataset","description":"Measured cross section times branching fractions as a function of pT for prompt $\\psi$(2S) production.","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t9","@type":"Dataset","description":"Measured cross section times branching fractions as a function of pT for non-prompt $\\psi$(2S) production.","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t10","@type":"Dataset","description":"Measured cross section times branching fractions as a function of pT for prompt X(3872) production.","name":"Table 10"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t11","@type":"Dataset","description":"Measured cross section times branching fractions as a function of pT for non-prompt X(3872) production.","name":"Table 11"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t12","@type":"Dataset","description":"Measured non-prompt fraction for $\\psi(2S)$ production.","name":"Table 12"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t13","@type":"Dataset","description":"Measured non-prompt fraction for X(3872) production.","name":"Table 13"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t14","@type":"Dataset","description":"Normalised differential decay width of $\\psi(2S) \\rightarrow J/\\psi \\pi\\pi$ in bins of $m_{\\pi\\pi}$.","name":"Table 14"},{"@id":"https://doi.org/10.17182/hepdata.76839.v1/t15","@type":"Dataset","description":"Normalised differential decay width of $X(3872) \\rightarrow J/\\psi \\pi\\pi$ in bins of $m_{\\pi\\pi}$.","name":"Table 15"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1495026?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/76839"}],"inLanguage":"en","name":"Measurements of $\\psi(2S)$ and $X(3872) \\to J/\\psi\\pi^+\\pi^-$ production in $pp$ collisions at $\\sqrt{s} = 8$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1495026?version=1","version":1}