Measurements of the Λ[superscript 0][subscript b]→J/ΨΛ Decay Amplitudes and the Λ[superscript 0][subscript b] Polarisation in Pp Collisions at √S=7 TeV

An angular analysis of Λ[superscript 0][subscript b] → J /ψΛ decays is performed using a data sample corresponding to 1.0fb[superscript -1] collected in pp collisions at √s = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the Λ[superscript 0][subscript...

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Bibliographic Details
Main Author: Williams, Michael
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Published: Elsevier BV 2018
Online Access:http://hdl.handle.net/1721.1/116650
https://orcid.org/0000-0001-8285-3346
Description
Summary:An angular analysis of Λ[superscript 0][subscript b] → J /ψΛ decays is performed using a data sample corresponding to 1.0fb[superscript -1] collected in pp collisions at √s = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the Λ[superscript 0][subscript b] → J /ψΛ decay of 0.05 ± 0.17 ± 0.07 and a Λ[superscript 0][subscript b] transverse production polarisation of 0.06 ± 0.07 ± 0.02 are measured, where the first uncertainty is statistical and the second systematic. © 2013 CERN for the benefit of the LHCb Collaboration