2020 Impact factor 4.590
Particles and Fields
Eur. Phys. J. C 12, 375-392
DOI 10.1007/s100529900196

Global QCD analysis of parton structure of the nucleon:
CTEQ5 parton distributions

H.L. Lai5 - J. Huston4 - S. Kuhlmann1 - J. Morfin2 - F. Olness5 - J.F. Owens3 - J. Pumplin4 - W.K. Tung4

1 Argonne National Laboratory, Argonne, Illinois, USA
2 Fermi National Accelerator Laboratory, Batavia, Illinios, USA
3 Florida State University, Tallahassee, Florida, USA
4 Michigan State University, East Lansing, Michigan, USA
5Southern Methodist University, Dallas, Texas, USA
6 National Tsing Hua University, Taiwan

Received: 7 April 1999 / Published online: 21 December 1999

An up-to-date global QCD analysis of high energy lepton-hadron and hadron-hadron interactions is performed to better determine the gluon and quark parton distributions in the nucleon. Improved experimental data on inclusive jet production, in conjunction with precise deep inelastic scattering data, place good constraints on the gluon over a wide range of x; while new data on asymmetries in Drell-Yan processes contribute to better determine the d/u ratio. Comparisons with results of other recent global analyses are made, and the differences are described. Open issues and the general problem of determining the uncertainties of parton distributions are discussed.

Copyright Springer-Verlag 2000