%0 Journal Article
%T Measurement of the Lambda(0)(b) -> J/psi Lambda angular distribution and the Lambda(0)(b) polarisation in pp collisions
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2020
%V 06
%N 6
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2020
%O WOS:000543735000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4449), last updated on Wed, 15 Jul 2020 13:44:05 +0000
%X This paper presents an analysis of the Lambda(0)(b) -> J/psi Lambda angular distribution and the transverse production polarisation of Lambda(0)(b) baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fb(-1), collected with the LHCb experiment. The polarisation is determined in a fiducial region of Lambda(0)(b) transverse momentum and pseudorapidity of 1 < p(T) < 20 GeV/c and 2 < eta < 5, respectively. The data are consistent with Lambda(0)(b) baryons being produced unpolarised in this region. The parity-violating asymmetry parameter of the Lambda -> p pi(-) decay is also determined from the data and its value is found to be consistent with a recent measurement by the BES III collaboration.
%K B physics
%K Flavor physics
%K Hadron-Hadron scattering (experiments)
%K Heavy quark production
%K Polarization
%R 10.1007/JHEP06(2020)110
%U https://arxiv.org/abs/2004.10563
%U https://doi.org/10.1007/JHEP06(2020)110
%P 110-30pp