6533b835fe1ef96bd129fc29

RESEARCH PRODUCT

Measurements of the Lambda(0)(b) -> J/psi Lambda decay amplitudes and the Lambda(0)(b) polarisation in pp collisions at root s=7 TeV

Lhcb CollaborationArantza Oyanguren CamposPablo Ruiz Valls

subject

High Energy Physics::ExperimentFísica nuclearAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics

description

An angular analysis of Lambda(0)(b) -> J/psi Lambda decays is performed using a data sample corresponding to 1.0 fb(-1) collected in pp collisions at root s = 7 TeV with the LHCb detector at the LHC. A parity violating asymmetry parameter characterising the Lambda(0)(b) -> J/psi Lambda decay of 0.05 +/- 0.17 +/- 0.07 and a Lambda(0)(b) transverse production polarisation of 0.06 +/- 0.07 +/- 0.02 are measured, where the first uncertainty is statistical and the second systematic.

yearjournalcountryeditionlanguage
2013-01-01
10.1016/j.physletb.2013.05.041http://hdl.handle.net/10550/33913