2010/09/30 by Yan-Qing Ma, Kai Wang, Kuang-Ta Chao · 3 citations
Physics and Astronomy · #Algorithm #Computer science #High-Energy Particle Collisions Research #Large Hadron Collider #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Tevatron #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevlett.106.042002
published as Phys.Rev.Lett.106:042002,2011 · Version published in PRL, 4 pages, 4 figures
arxiv created 2011/01/27 · openalex publication_date 2011/01/27 · arxiv updated 2011/02/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.