J/{psi} production associated with a hard photon and the color-octet signature in e{sup +}e{sup {minus}} annihilation

Journal Article · Fri Aug 01 00:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.R1363· OSTI ID:527154

Chang, C ^[1]; Qiao, C ^[1]; Wang, J ^[1]

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1. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

J/{psi} production associated with a hard photon in e{sup +}e{sup {minus}} annihilation, being of a QED nature, is investigated thoroughly in this paper. To show its influence on the observation of the color-octet signature in e{sup +}e{sup {minus}} annihilation via J/{psi} inclusive production, the cross sections of J/{psi} production through different mechanisms at various energies are compared quantitatively by presenting them in figures together. The contribution from the production associated with a hard photon to the inclusive production of J/{psi} is pointed out to be significant at the concerned energies; thus, the influence of it on the observation of the color-octet signature should be dealt with carefully. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 527154
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANNIHILATION
COLOR MODEL
CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
J PSI-3097 MESONS
OCTET MODEL
PARTICLE PRODUCTION
PHOTONS
QUANTUM ELECTRODYNAMICS