Eur. Phys. J. C 19, 89-98
DOI: 10.1007/s100520100579

Next-to-leading order determination of fragmentation functions

L. Bourhis¹, M. Fontannaz², J.Ph. Guillet³ and M. Werlen<sup>3

1</sup>  Department of Theoretical Physics, South Road, Durham City DH1 3LE, UK
²  Laboratoire de Physique Théorique (Unité mixte de recherche (CNRS) UMR 8627) , Université de Paris XI, Bâtiment 210, 91405 Orsay Cedex, France
³  Laboratoire de Physique Théorique LAPTH (UMR 5108 du CNRS, associée à l'Université de Savoie) , B.P. 110, 74941 Annecy-le-Vieux Cedex, France

(Received: 8 September 2000 / Published online: 5 February 2001 -© Springer-Verlag 2001)

Abstract
We analyse LEP and PETRA data on single inclusive charged hadron cross-sec tions to establish new sets of Next-to-Leading order Fragmentation Functions. Data on hadro-production of large- hadrons are also used to constrain the gluon Fragmentation Function. We carry out a critical com pa ri son with other NLO parametrizations.

© Società Italiana di Fisica, Springer-Verlag 2001