AssociatedΥ+b+b¯production at the Fermilab Tevatron and CERN LHC

Abstract

In the framework of perturbative QCD and nonrelativistic bound state formalism, we calculate the production of {upsilon} mesons associated with open-beauty particles at the Tevatron and LHC conditions. We show that the contribution from the {upsilon}+b+b channel becomes comparable with that of {upsilon} sole production at the LHC at high enough transverse momenta, but is small at the Tevatron. We investigate the {upsilon} polarization effects and kinematic correlations between {upsilon} mesons and the accompanying open-beauty mesons. We show that the correlations are sensitive to the initial k{sub t} of the colliding partons, and so, can be considered as an additional test discriminating the collinear parton model and the k{sub t}-factorization approach.