{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.105881.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1857623"}},{"@id":"https://doi.org/10.1038/s41567-021-01394-x","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"LHCb Collaboration"},"creator":{"@type":"Organization","name":"LHCb Collaboration"},"datePublished":"2021","description":"Mesons comprising a beauty quark and a strange quark can oscillate between particle ($B^{0}_{s}$) and antiparticle ($\\bar{B}^{0}_{s}$) flavour eigenstates, with a frequency given by the mass difference between heavy and light mass eigenstates, $\\Delta m_s$. Here we present a measurement of $\\Delta m_s$ using $B^{0}_{s} \\to D_{s}^{-} \\pi^{+}$ decays produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. This measurement improves upon the current $\\Delta m_s$ precision by a factor of two. The oscillation frequency is found to be $\\Delta m_s = 17.7683 \\pm 0.0051 \\pm 0.0032$ ps$^{-1}$ where the first uncertainty is statistical and the second systematic. We combine this result with previous LHCb measurements to determine $\\Delta m_s = 17.7656 \\pm 0.0057$ ps$^{-1}$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.105881.v1/t1","@type":"Dataset","description":"Summary of LHCb measurements. Comparison of LHCb $\\Delta m_s$ measurements from Refs. [8\u201311], the result presented in this article and...","name":"Figure 3"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1857623?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/105881"}],"inLanguage":"en","name":"Precise determination of the B0s-B0sbar oscillation frequency","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1857623?version=1","version":1}