J/{psi}({psi}{sup '}) Production at the Tevatron and LHC at O({alpha}{sub s}{sup 4}v{sup 4}) in Nonrelativistic QCD

Journal Article · Fri Jan 28 04:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.042002· OSTI ID:21532262

Yanqing, Ma; Kai, Wang ^[1]; Kuangta, Chao ^[1]

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1. Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

We present a complete evaluation for J/{psi}({psi}{sup '}) prompt production at the Tevatron and LHC at next-to-leading order in nonrelativistic QCD, including color-singlet, color-octet, and higher charmonia feeddown contributions. The short-distance coefficients of {sup 3}P{sub J}{sup [8]} at next-to-leading order are found to be larger than leading order by more than an order of magnitude but with a minus sign at high transverse momentum p{sub T}. Two new linear combinations of color-octet matrix elements are obtained from the CDF data, and used to predict J/{psi} production at the LHC, which agrees with the CMS data. The possibility of {sup 1}S{sub 0}{sup [8]} dominance and the J/{psi} polarization puzzle are also discussed.

• OSTI ID: 21532262
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 106; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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