Next-to-Leading-Order QCD Corrections to J/{psi} Polarization at Tevatron and Large-Hadron-Collider Energies

Journal Article · Fri Jun 13 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.232001· OSTI ID:21134017

Bin, Gong; Jianxiong, Wang ^[1]

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1. Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918(4), Beijing, 100049 (China)

We calculate the next-to-leading-order QCD corrections to J/{psi} polarization at the Fermilab Tevatron and CERN Large Hadron Collider. Our results show that the J/{psi} polarization status drastically changes from transverse-polarization dominant at leading order to longitudinal-polarization dominant at next-to-leading order. Although the theoretical evaluation predicts a larger longitudinal polarization than the value measured at the Tevatron, it may provide a solution towards the previous large discrepancy for J/{psi} polarization between theoretical predication and experimental measurement.

• OSTI ID: 21134017
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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