# Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV

LHCb Collaboration; et al; Bernet, R; Müller, K; Steinkamp, O; Straumann, U; Vollhardt, A (2013). Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV. Physics Letters B, 724(1-3):27-35.

## Abstract

An angular analysis of View the Λb0→J/ψΛ decays is performed using a data sample corresponding to 1.0 fb−11.0 fb−1 collected in pp collisions at s=7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the View the Λb0→J/ψΛ decay of 0.05±0.17±0.070.05±0.17±0.07 and a View the Λb0 transverse production polarisation of 0.06±0.07±0.020.06±0.07±0.02 are measured, where the first uncertainty is statistical and the second systematic.

## Abstract

An angular analysis of View the Λb0→J/ψΛ decays is performed using a data sample corresponding to 1.0 fb−11.0 fb−1 collected in pp collisions at s=7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the View the Λb0→J/ψΛ decay of 0.05±0.17±0.070.05±0.17±0.07 and a View the Λb0 transverse production polarisation of 0.06±0.07±0.020.06±0.07±0.02 are measured, where the first uncertainty is statistical and the second systematic.

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