Eur. Phys. J. C 10, 697-702
Analysis of deep inelastic scattering with z-dependent scale
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
Received: 27 April 1999 / Published online: 15 July 1999
Evolution of the parton densities at NLO in using instead of the usual Q2 for the scale of the running coupling is investigated. While this renormalisation scale change was originally proposed as the relevant one for , we explore the consequences for all x with this choice. While it leads to no improvement to the description of DIS data, the nature of the gluon at low x, low Q2 is different, avoiding the need for a `valence-like' gluon.