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- W4241441394 abstract "We have calculated the color-singlet and color-octet contributions to JΨ photoproduction, including higherorder QCD corrections to the color-singlet channel. Using the values for the color-octet matrix elements extracted from fits to prompt JΨ data at the Tevatron, we demonstrate that distinctive color-octet signatures should be visible in JΨ photoproduction. However, these predictions appear at variance with recent experimental data obtained at HERA, indicating that the phenomenological importance of the color-octet contributions is smaller than expected from theoretical considerations and suggested by the Tevatron fits. We find that the experimental data on differential distributions and total cross sections are well accounted for by the color-singlet channel including higher-order QCD corrections." @default.
- W4241441394 created "2022-05-12" @default.
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- W4241441394 date "1996-12-01" @default.
- W4241441394 modified "2023-09-26" @default.
- W4241441394 title "Color-singlet and color-octet contributions to J/ψ photoproduction" @default.
- W4241441394 doi "https://doi.org/10.1016/s0920-5632(96)00460-4" @default.
- W4241441394 hasPublicationYear "1996" @default.
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