Measurements of the Λ0b → J /ψΛ decay amplitudes and the Λ0b polarisation in pp collisions at √s = 7TeV
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
724
Journal Issue
1月3日
Pages
27-35
Date Issued
2013
Author(s)
Aaij, R. et al. (LHCb Collaboration)
Abstract
An angular analysis of 0 b J / decays is performed using a data sample corresponding to 1.0 fb -1 collected in pp collisions at s = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the 0 b J / decay of 0.05 0.17 0.07 and a 0 b transverse production polarisation of 0.06 0.07 0.02 are measured, where the first uncertainty is statistical and the second systematic.
Type
journal article