Polarized J/psi from chi_{cJ} and psi' Decays at the Tevatron

Details Polarized J/psi from chi_{cJ} and psi' Decays at the Tevatron Polarized J/psi from chi_{cJ} and psi' Decays at the Tevatron

2000-07-26

arxiv.org/abs/hep-ph/0007292v1

Phys.Rev.D62:114027,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages (Latex), 1 figure (Postscript)

Scientific paper

10.1103/PhysRevD.62.114027

We calculate the partonic cross sections for the hadroproduction of polarized chi_{cJ} mesons using the factorization formalism of nonrelativistic QCD. We also describe how the polarization is passed on to the J/psi mesons in the radiative feed-down chi_{cJ} -> J/psi + gamma and in the double-cascade decays of psi' mesons via chi_{cJ} intermediate states. These represent the missing ingredients needed to predict the polarization of prompt J/psi mesons at the Fermilab Tevatron.

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