Observation of the Λ b 0 → Λ ϕ decay
Name
1-s2.0-S0370269316302325-main.pdf
Description
Published version
Size
1.01 MB
Format
Unknown
Checksum (MD5)
aede5fc70117cc5fe5599eac67dd4ba6
Author(s)
The LHCb Collaboration
Ilten, Philip J
Williams, Michael
Date Issued
2016
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Citation
Aaij, R., et al. "Observation of the ?b 0??f Decay." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 759 (2016): 282-92.
Version
Final published version
Abstract
© 2016 The Author. The Λb0→Λφ decay is observed using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The decay proceeds at leading order via a b→sss loop transition and is therefore sensitive to the possible presence of particles beyond the Standard Model. A first observation is reported with a significance of 5.9 standard deviations. The value of the branching fraction is measured to be (5.18±1.04±0.35-0.62+0.67)×10-6, where the first uncertainty is statistical, the second is systematic, and the third is related to external inputs. Triple-product asymmetries are measured to be consistent with zero.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2016.05.077
