Ingoing-wave Boundary-condition Versus Optical-model Transmission Coefficients - A Systematic Comparison With Particle-emission Data

M., Kildir
LA RANA, Giovanni
Moro, RENATA EMILIA MARIA
Brondi, Augusto
Vardaci, Emanuele
A., D'Onofrio
D., Fessas
Perillo, Eugenio
Roca, Vincenzo
Romano, Mario
F., Terrasi
G., Nebbia
G., Viesti
G., Prete

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Publication date

January 1995

DOI

10.1103/PhysRevC.51.1873

Publisher

American Physical Society (APS)

ISSN

0556-2813

Abstract

Evaporative 1,2,3H and 4He yields and energy spectra have been analyzed in the framework of the statistical model in ten heavy-ion reactions, spanning composite systems with 20<56. Transmission coefficients derived from the ingoing-wave boundary condition (IWBCM) or optical models (OM) have been used in the calculations. The effect of using different values of deformation parameters, level-density parameter a and radii of the real part of the transmission coefficient potentials has been investigated. Except for the low-energy side of the proton spectra, the shape of energy spectra are reasonably well reproduced by both sets of transmission coefficients. While the two models are essentially equivalent for 1H and 4He cross sections, they diff...