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Parton distributions: a new global analysis

  • A.D. Martin
  • R.G. Roberts
  • W.J. Stirling
  • R.S. Thorne
Theoretical physics

Abstract.

We present a new analysis of parton distributions of the proton. This incorporates a wide range of new data, an improved treatment of heavy flavours and a re-examination of prompt photon production. The new set (MRST) shows systematic differences from previous sets of partons which can be identified with particular features of the new data and with improvements in the analysis. We also investigate the sensitivities of the results to (i) the uncertainty in the determination of the gluon at large \(x\), (ii) the value of \(\alpha_S (M_Z^2)\) and (iii) the minimum \(Q^2\) cut on the data that are included in the global fit.

Keywords

Systematic Difference Global Analysis Parton Distribution Improve Treatment Photon Production 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • A.D. Martin
    • 1
  • R.G. Roberts
    • 2
  • W.J. Stirling
    • 1
  • R.S. Thorne
    • 3
  1. 1. Department of Physics, University of Durham, Durham, DH1 3LE GB
  2. 2. Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX GB
  3. 3. Jesus College, University of Oxford, Oxford, OX1 3DW GB

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