Measurement of the shape of the Λ0b → Λ+c µνµ differential decay rate

LHCb Collaboration

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A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay Λ0b → Λ+c µνµ is reported, using data corresponding to 3 fb1 collected with the LHCb detector in proton-proton collisions. The Λ+c µνµ(+ anything) final states are reconstructed through the detection of a muon and a Λ+c baryon decaying into pKπ+, and the decays Λ0b → Λ+c π+πµνµ are used to determine contributions from Λ0b → Λc+ µνµ decays. The measured dependence of the differential decay rate upon the squared four-momentum transfer between the heavy baryons, q2, is compared with expectations from heavy-quark effective theory and from unquenched lattice QCD predictions.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Sep 6 2017

ASJC Scopus subject areas

  • General

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