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Deep-inelastic structure functions for bound states in the ladder approximation

Journal Article · · Phys. Rev., D; (United States)
A simple relativistic expression for the structure function of a two-body S-wave bound state in lambdaphi/sup 3/ theory is obtained at all values of the scaling variable in terms of the Deser-Gilbert-Sudarshan-Ida spectral function of the Bethe-Salpeter wave function in the ladder approximation. A similar result is given for a fermion-antifermion bound state with approximate wave function derived from conformal invariance. At small x the structure function has the expected peak broadened by the binding effect and for a fermion-antifermion S-wave bound state it behaves like (1 - x)/sup 2/ as x ..-->.. 1.
Research Organization:
Centre de Physique Theorique de L'Ecole Polytechnique, Plateau de Palaiseau, 91128 Palaiseau Cedex, France
OSTI ID:
6335063
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 19:2; ISSN PRVDA
Country of Publication:
United States
Language:
English