Production and polarization of Upsilon mesons in the k_T-factorization approach in more detail

Abstract

In the framework of the k_T-factorization approach, the production and polarization of Upsilon mesons at the Fermilab Tevatron is considered, and a comparision of the calculated double differential distributions and spin alignment parameter $\alpha$ with the D0 experimental data is shown. We argue that measuring the double differential cross section and the polarization of upsilonium states can serve as a crucial test discriminating two competing theoretical approaches to the parton dynamics in QCD.

4 pges, 4 figures

References in corpus (1)

• Upsilonium polarization as a touchstone in understanding the proton dynamics in QCD

Cited by in corpus (1)

• Real next-to-next-to-leading-order QCD corrections to J/psi and Upsilon hadroproduction in association with a photon