APS » PROLA » Phys. Rev. Lett. » Volume 76 » Issue 6

Phys. Rev. Lett. 76, 877 - 880 (1996)

Color-Octet Quarkonium Production at the Z Pole

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Kingman Cheung1, Wai-Yee Keung2,3, and Tzu Chiang Yuan4
1Center for Particle Physics, University of Texas at Austin, Austin, Texas 78712
2Physics Department, University of Illinois at Chicago, Illinois 60607-7059
3Fermilab, P.O. Box 500, Batavia, Illinois 60510
4Davis Institute for High Energy Physics, University of California at Davis, Davis, California 95616

Received 15 September 1995

The direct production rate of J/ψ via the color-octet mechanism is calculated at the Z resonance. The color-octet production process Z→J/ψqq̅ is shown to have a substantial branching ratio as well as a distinctive energy spectrum, which can be used as a powerful tool to distinguish from the color-singlet direct production of the J/ψ.


©1996 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v76/p877
DOI: 10.1103/PhysRevLett.76.877
PACS: 13.65.+i, 13.87.Fh

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