J/ψ Production with NRQCD: HERA, Tevatron, RHIC and LHC

被引：7

作者：

Butenschoen, Mathias ^{[1
]}

Kniehl, Bernd A. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

来源：

IX INTERNATIONAL CONFERENCE ON QUARK CONFINEMENT AND THE HADRON SPECTRUM (QCHS IX) | 2011年 / 1343卷

关键词：

Lepton-Nucleon Scattering; Nucleon-Nucleon Scattering; Heavy Quarkonia; Nonrelativistic QCD; OCTET QUARKONIA PRODUCTION; QCD CORRECTIONS; PHOTOPRODUCTION; MESONS;

D O I：

10.1063/1.3575045

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We report on our recent calculation of the inclusive direct photo- and hadroproduction of the J/psi meson at next-to-leading order within the factorization formalism of nonrelativistic QCD. We fit the color-octet (CO) long-distance matrix elements < O(J/psi) ((1)S(0)([8]))>, < O(J/psi) ((3)S(1)([8]))> and < O(J/psi) ((3)P(0)([8]))> to the transverse momentum (p(T)) distributions measured by CDF at Fermilab Tevatron and by H1 at DESY HERA and show that they also successfully describe the p(T) distributions from PHENIX at BNL RHIC and CMS at the CERN LHC as well as the photon-proton c.m. energy and (with worse agreement) the inelasticity distributions from H1. In all experiments, the CO processes are shown to be indispensable.

引用

页码：409 / 411

页数：3

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