Abstract

Abstract

MENU / onia and onia-like states at LHCb

Studies of quarkonia production in the forward region provide important tests of NRQCD. The LHCb experiment has collected a dataset corresponding to an integrated luminosity of about 3 fb-l in proton-proton collisions at sqrt(s)= 7 and 8 TeV. We present studies of the production and polarisation of the J/psi, psi(2S) and chi_c charmonium states as well as those of Upsilon and chi_b bottomonia. Absolute and relative production cross-sections are presented and compared to the most recent theoretical predictions when available. Discoveries of potentially exotic quarkonia-like states have sparked a renewal of interest in heavy flavour spectroscopy. The LHCb experiment has excellent potential to improve significantly the understanding of these states. The latest results in this area, including the determination of the quantum numbers of the X(3872) state, are presented.