Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-11-15
Z.Phys. C76 (1997) 537-547
Physics
High Energy Physics
High Energy Physics - Phenomenology
31 pages, 6 embedded ps figures, uses macro epsfig.sty. Revised version, to be published in Z. Phys. C. Both asymptotic and CZ
Scientific paper
Starting from a bound-state model of weakly bound quarks for ($q \bar{q}$) mesons, we derive a formalism for computing the production or decay of such mesons, whatever the value of their internal orbital angular momentum L. That approach appears as a natural generalization of the Brodsky-Lepage formalism (valid only for L=0) that has been widely used in recent years for the computation of exclusive processes in perturbative QCD. We here apply it to the production, in photon-photon collisions, of: i) tensor-meson pairs; ii) pseudotensor-meson pairs; iii) hybrid pairs made of a pion and a pseudotensor meson. The numerical results we obtain allow for some hope of experimentally identifying such pairs, in the charged channels, at high-energy e^+e^- colliders of the next generation, provided integrated luminosities as high as $\approx 10^{40} cm^{-2}$ can be reached.
Hansson Johan
Houra-Yaou L.
Kessler Paul
Murgia Francesco
Parisi Joseph
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