{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.88921.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1632444"}},{"@id":"https://doi.org/10.1140/epjc/s10052-018-5929-3","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2020","description":"CERN-LHC. Measurements are presented of the lifetimes of the $B^{0}$, $B_{s}^{0}$, $\\Lambda_{b}$ and $B_{c}^{+}$ hadrons using the decay channels $B^{0} \\to J/\\psi K^{*}(892)$, $B^{0} \\to J/\\psi K_{s}^{0}$, $B_s^{0} \\to J/\\psi \\pi \\pi$, $B_s^{0} \\to J/\\psi\\phi(1020)$, $\\Lambda_{b} \\to J/\\psi\\Lambda$ amd $B_{c}^{+} \\to J/\\psi\\pi$. The data sample, corresponding to an integrated luminosity of 19.7fb$^{-1}$, was collected by the CMS detector at the LHC in proton-proton collisions at $\\sqrt{s}=8$TeV. The $B^{0}$ lifetime is measured to be $453.0 \\pm 1.6 (stat) \\pm 1.8(syst)$ $\\mu$m in $J/\\psi K^{*}(892)$ and $457.8 \\pm 2.7(stat) \\pm 2.8(syst)$ $\\mu$m in $J/\\psi K_{s}^{0}$, which results in a combined measurement of $c\\tau_{B^{0}} = 454.1 \\pm 1.4(stat) \\pm 1.7(syst)$ $\\mu$m. The effective lifetime of the $B_{s}^{0}$ meson is measured in two decay modes, with contributions from different amounts of the heavy and light eigenstates.  This results in two different measured lifetimes: $c\\tau_{B_s^{0} \\to J/\\psi\\pi\\pi} = 502.7 \\pm 10.2(stat)\\pm 3.4(syst)$ $\\mu$m and $c\\tau_{B_s^{0} \\to J/\\psi\\phi(1020)} = 443.9 \\pm 2.0(stat) \\pm1.5(syst)$ $\\mu$m. The $\\Lambda_{b}$ lifetime is found to be $442.9 \\pm 8.2(stat) \\pm 2.8(syst)$ $\\mu$m. The precision from each of these channels is as good as or better than previous measurements. The $B_{c}^{+}$ lifetime, measured with respect to the $B^{+}$ to reduce the systematic uncertainty, is $162.3 \\pm 7.8(stat) \\pm 4.2(syst) \\pm 0.1\\,(\\tau_{B^{+}})$ $\\mu$m . All results are in agreement with current world-average values.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.88921.v1/t1","@type":"Dataset","description":"Measurement of b hadron lifetimes in pp collisions at $\\sqrt{s}=8$TeV.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.88921.v1/t2","@type":"Dataset","description":"Measurement of b hadron lifetimes ratios in pp collisions at $\\sqrt{s}=8$TeV.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.88921.v1/t3","@type":"Dataset","description":"Estimate $\\Gamma_\\mathrm{d}$ and $\\Delta \\Gamma_\\mathrm{d}$ in pp collisions at $\\sqrt{s}=8$TeV.","name":"Table 3"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1632444?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/88921"}],"inLanguage":"en","name":"Measurement of b hadron lifetimes in pp collisions at $\\sqrt{s} =$ 8 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1632444?version=1","version":1}