DOI 10.1007/s100529800708
Quark and gluon fragmentation functions into photons
L. Bourhis1 - M. Fontannaz1 - J.Ph. Guillet2
1 Laboratoire de Physique Théorique et Hautes
Energies,
Université de Paris XI, bâtiment 211,
F-91405 Orsay Cedex, France
2 Laboratoire de Physique Théorique ENSLAPP
- Groupe
d'Annecy,
LAPP, IN2P3-CNRS, B.P. 110,
F-74941 Annecy-le-Vieux Cedex, France
Received: 28 May 1997 / Published online: 20 February 1998
Abstract
The fragmentation functions of quarks and gluons into photons
are studied beyond the Leading Logarithm approximation. We address the
nature of the initial conditions of the evolution equation solutions and
study problems related to factorization scheme invariance. The
possibility of measuring these distributions in LEP experiments is
discussed, and a comparison with existing data is made.
Copyright Springer-Verlag
