QCD Corrections to Double J/{psi} Production in e{sup +}e{sup -} Annihilation at {radical}(s)=10.6 GeV

Journal Article · Fri May 09 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.181803· OSTI ID:21128118

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)

Next-to-leading-order (NLO) QCD corrections to double J/{psi} production in e{sup +}e{sup -} annihilation at {radical}(s)=10.6 GeV are calculated. We find that they greatly decrease the cross section, with a K factor (NLO/LO) ranging from -0.31 to 0.25 depending on the renormalization scale. Although the renormalization scale dependence indicates a large uncertainty, when combined with the NLO QCD corrections to J/{psi}+{eta}{sub c} production, it can explain why the double J/{psi} production could not be found at B factories while the J/{psi}+{eta}{sub c} production could, despite the fact that cross section of the former is larger than that of the latter at LO by a factor of 1.8.

• OSTI ID: 21128118
• Journal Information: Physical Review Letters, Vol. 100, Issue 18; Other Information: DOI: 10.1103/PhysRevLett.100.181803; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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MESON FACTORIES
PARTICLE PRODUCTION
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