Numéro
J. Phys. Colloques
Volume 31, Numéro C2, Mai-Juin 1970
COLLOQUE SUR LES MECANISMES DES REACTIONS NUCLEAIRES
Page(s) C2-114 - C2-115
DOI https://doi.org/10.1051/jphyscol:1970226
COLLOQUE SUR LES MECANISMES DES REACTIONS NUCLEAIRES

J. Phys. Colloques 31 (1970) C2-114-C2-115

DOI: 10.1051/jphyscol:1970226

REACTIONS PHOTONUCLEAIRES (γ, xn) DANS LES NOYAUX SPHERIQUES

P.J. Carlos, A. Veyssière, R. Bergère, H. Beil and A. Leprêtre

SMPNF - CEN-SACLAY - B.P. N°2 GIF-sur-YVETTE - 91 FRANCE


Résumé
Les sections efficaces de réactions photonucléaires (γ, xn) sur 208Pb, 89Y, Sr et 93Nb présentent des structures nettes. En particulier le dédoublement isobarique de la résonance géante apparaît avoir été mis clairement en évidence.


Abstract
Structure is clearly observed in the partial σ (γ, n) and total photoneutron cross sections σtotal (Eγ for 208Pb, 89Y, Sr and 93Nb. Our results are compared to the particle-hole calculations of the giant dipole states ; good agreement is found with the theoretical predictions of the isobaric splitting of the giant dipole states.


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