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Updated: Jun 3, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
J/ψ(ψ') production at the Tevatron and LHC at O(α(s)4v4) in nonrelativistic QCD
Yan-Qing Ma1, Kai Wang, Kuang-Ta Chao
1Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
Abstract:
We present a complete evaluation for J/ψ(ψ') 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 3P(J)([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(T). Two new linear combinations of color-octet matrix elements are obtained from the CDF data, and used to predict J/ψ production at the LHC, which agrees with the CMS data. The possibility of (1)S(0)([8]) dominance and the J/ψ polarization puzzle are also discussed.
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