Measurements of the [formula omitted] decay amplitudes and the [formula omitted] polarisation in pp collisions at [formula omitted

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doi:10.1016/j.physletb.2013.05.041

Abstract

An angular analysis of Λb0→J/ψΛ 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 Λb0→J/ψΛ decay of 0.05±0.17±0.07 and a Λb0 transverse production polarisation of 0.06±0.07±0.02 are measured, where the first uncertainty is statistical and the second systematic.

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