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Isospin character of the giant quadrupole transition in 124Sn
J. Horen D., Bertrand F.E., Beene J.R., Satchler G.R., Mittig W. et al
Physical Review C 44 (1991) 2385-2389 - http://hal.in2p3.fr/in2p3-00695566
Physique/Physique Nucléaire Expérimentale
Isospin character of the giant quadrupole transition in 124Sn
D. J. Horen, F.E. Bertrand, J.R. Beene, G.R. Satchler, W. Mittig1, A.C.C. Villari1, Y. Schutz1, Z. Wenlong1, E. Plagnol1, A. Gillibert2
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
http://www.ganil-spiral2.eu
CNRS : UPR3266 – IN2P3 – CEA : DSM/GANIL
Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5
France
2 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
CEA : DSM/IRFU
France
Use has been made of the interference between the nuclear and Coulomb amplitudes in the scattering of 84 MeV/nucleon 17O ions by 124Sn to study the isospin character of the giant quadrupole transition. The data are well described by assuming the transition is ''isoscalar,'' i.e., Mn/Mp=N/Z. This is in disagreement with the results of π+/π- scattering on 118Sn and recent (e,e'n) measurements on 116Sn. Cross sections for excitation of the 2+ state at 1.132 MeV, 3- state at 2.614 MeV, and giant monopole resonance are included with corresponding coupled-channels calculations.

Articles dans des revues avec comité de lecture
1991
Physical Review C (Phys. Rev. C)
Publisher American Physical Society
ISSN 0556-2813 (eISSN : 1089-490X)
44
2385-2389