Measurement of the Λ0b lifetime in pp collisions at √s = 7 TeV

CMS Collaboration

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A measurement of the Λ0b lifetime using the decay Λ0b → J/ψΛ in proton-proton collisions at √s = 7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb-1, was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/ψ mass region. The Λ0b lifetime is measured to be 1.503 ± 0.052 (stat.) ± 0.031 (syst.) ps.
Original languageEnglish
Article number163
Number of pages32
JournalJournal of High Energy Physics
Issue number7
Publication statusPublished - 2013
Externally publishedYes


  • Hadron-Hadron Scattering

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