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Title: Measurement of the shape of the Λ b 0 Λ c + μ ν ¯ μ differential decay rate

Journal Article · · Physical Review D
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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+cμ¯νμ is reported, using data corresponding to 3 fb–1 collected with the LHCb detector in proton-proton collisions. The Λ+cμ¯νμ(+anything) final states are reconstructed through the detection of a muon and a Λ+c baryon decaying into pKπ+, and the decays Λ0b→Λ+cπ+πμ¯νμ are used to determine contributions from Λ0b→Λ*c+μ¯νμ 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.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
LHCb Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1525265
Journal Information:
Physical Review D, Vol. 96, Issue 11; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (6)

Weak decays of heavy baryons in the light-front approach journal August 2018
Further tests of lepton flavor universality from the charged lepton energy distribution in b c semileptonic decays: The case of Λ b Λ c ν ¯ journal December 2019
Measurement of | V c b | with B s 0 D s ( * ) μ + ν μ decays journal April 2020
Measurement of b hadron fractions in 13 TeV pp collisions text January 2019
Measurement of $b$ hadron fractions in 13 TeV $pp$ collisions text January 2019
Weak Decays of Heavy Baryons in Light-Front Approach text January 2018

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