Polarized J/ψ from χcJ and ψ′ decays at the Fermilab Tevatron

2000/07/26 by Bernd A. Kniehl, Jungil Lee · 4 citations
Physics and Astronomy · #Factorization #Fermilab #Formalism (music) #High-Energy Particle Collisions Research #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Radiative transfer #Tevatron #hep-ph

paper · pdf · doi:10.1103/physrevd.62.114027

published as Phys.Rev.D62:114027,2000 · 17 pages (Latex), 1 figure (Postscript)

arxiv created 2000/07/26 · openalex publication_date 2000/11/01 · arxiv updated 2011/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We calculate the partonic cross sections for the hadroproduction of polarized \ensuremathχ_cJ mesons using the factorization formalism of nonrelativistic QCD. We also describe how the polarization is passed on to the J/\ensuremathψ mesons in the radiative feed-down \ensuremathχ_cJ\ensuremath→J/\ensuremathψ+\ensuremathγ and in the double-cascade decays of \ensuremathψ^\ensuremath' mesons via \ensuremathχ_cJ intermediate states. These represent the missing ingredients needed to predict the polarization of prompt J/\ensuremathψ mesons at the Fermilab Tevatron.

Cited by

• Quarkonium production in deep-inelastic scattering
• Polarization of promptJ/ψin proton-proton collisions at RHIC
• Hadronic decays ofχbJinto light bottom squarks
• QCD corrections toJ/ψproduction in association with aWboson at the LHC