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The European Physical Journal C
ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)
Abstract Volume 2 Issue 3 (1998) pp 529-537
DOI 10.1007/s100529800708
theoretical physics:
Quark and gluon fragmentation functions into photons
L. Bourhis (1), M. Fontannaz (1), J.P. Guillet (2)
(1) Laboratoire de Physique Théorique et Hautes Energies (Laboratoire associé au CNRS - URA 0063), Université de Paris XI, bâtiment 211, F-91405 Orsay Cedex, France
(2) Laboratoire de Physique Théorique ENSLAPP (URA 14-36 du CNRS, associée à l'Ecole Normale Supérieure de Lyon, et au Laboratoire d'Annecy-le-Vieux de Physique des Particules) - 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.
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Online publication: April 25, 1998
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