Improved parton distributions from global analysis of recent deep inelastic scattering and inclusive jet data

H. L. Lai, J. Huston, S. Kuhlmann, F. Olness, J. Owens, D. Soper, W. K. Tung, and H. Weerts
Phys. Rev. D 55, 1280 – Published 1 February 1997
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Abstract

The impact of recent precision measurements of DIS structure functions and inclusive jet production at the Fermilab Tevatron on the global QCD analysis of parton distribution functions is studied in detail. Particular emphasis is placed on exploring the range of variation of the gluon distribution G(x,Q) allowed by these new data. The strong coupling of G(x,Q) with αs is fully taken into account. A new generation of CTEQ parton distributions, CTEQ4, is presented. It consists of the three standard sets [modified minimal subtraction (MS¯), deep inelastic scattering (DIS), and leading order (LO)], a series that gives a range of parton distributions with corresponding αs’s, and a set with a low starting value of Q. Previously obtained gluon distributions that are consistent with the high Et jet cross section are also discussed in the context of this new global analysis.

  • Received 21 June 1996

DOI:https://doi.org/10.1103/PhysRevD.55.1280

©1997 American Physical Society

Authors & Affiliations

H. L. Lai1, J. Huston1, S. Kuhlmann2, F. Olness3, J. Owens4, D. Soper5, W. K. Tung1, and H. Weerts1

  • 1Michigan State University, East Lansing, Michigan 48824
  • 2Argonne National Laboratory, Argonne, Illinois 60439
  • 3Southern Methodist University, Dallas, Texas 75275
  • 4Florida State University, Tallahassee, Florida 32306
  • 5University of Oregon, Eugene, Oregon 97403

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Vol. 55, Iss. 3 — 1 February 1997

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