22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Prompt J/psi and b -> J/psi X production in pp collisions at sqrt(s) = 7 TeV

22 Jul 2010, 09:30
Salle 242 ()

Salle 242

Parallel Session Talk 05 - Heavy Quarks Properties (experiment and theory) 05 - Heavy Quarks Properties (experiment and theory)


Giovanni Passaleva (Istituto Nazionale di Fisica Nucleare (INFN) - Florence)


Despite large experimental and theoretical efforts, the production rate and polarization of quarkonia states in hadronic collisions is not yet satisfactorily understood. With its first ~10 pb−1 of data, LHCb will be able to provide fresh measurements of the prompt and non-prompt J/ψ production cross sections, at the new center-of-mass energy of 7 TeV and in a unique range of rapidity (3 < y < 5) and transverse momentum (pT < 7GeV/c). The statistical separation between the prompt component and the contribution from b-hadron decays will be achieved using the distance between the pp collision point and J/ψ decay vertex. Preliminary measurements will be compared with predictions, and prospects for the extraction of the prompt J/ψ polarization, and prospects for the measurement of other quarkonia states will be discussed in the light of the first available signals.

Primary author

speaker’s bureau LHCb (Institute for Theoretical and Experimental Physics (ITEP))

Presentation Materials