DOI 10.1007/s100529800904
Parton distributions: a new global analysis
A.D. Martin1 - R.G. Roberts2 - W.J. Stirling1,3 - R.S. Thorne4
1 Department of Physics, University of Durham,
Durham, DH1 3LE
2 Rutherford Appleton Laboratory, Chilton,
Didcot, Oxon, OX11 0QX
3 Department of Mathematical Sciences, University of Durham,
Durham, DH1 3LE
4 Jesus College, University of Oxford, Oxford, OX1 3DW
Received: 23 March 1998 / Published online: 23 June 1998
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
and (iii) the minimum Q2 cut on the data that are included in
the global fit.
Copyright Springer-Verlag
