Crespi, F. C. L., Bracco, A., Nicolini, R., Lanza, E. G., Vitturi, A., Mengoni, D., Leoni, S., Benzoni, G., Blasi, N., Boiano, C., Bottoni, S., Brambilla, S., Camera, F., Corsi, A., Giaz, A., Million, B., Pellegri, L., Vandone, V., Wieland, O., Bednarczyk, P., Ciemala, M., Kmiecik, M., Krzysiek, M., Maj, A., Bazzacco, D., Bellato, M., Birkenbach, B., Bortolato, D., Calore, E., Cederwall, B., de Angelis, G., Desesquelles, P., Eberth, J., Farnea, E., Gadea, A., Goergen, A., Gottardo, A., Hess, H., Isocrate, R., Jolie, J., Jungclaus, A., Kempley, R. S., Labiche, M., Menegazzo, R., Michelagnoli, C., Molini, P., Napoli, D. R., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Sahin, E., Siem, S., Soederstroem, P. -A., Stezowski, O., Theisen, Ch., Ur, C. and Valiente-Dobon, J. J. (2015). 1(-) and 2(+) discrete states in Zr-90 populated via the (O-17, O-17 'gamma) reaction. Phys. Rev. C, 91 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

2(+) and 1(-) states in Zr-90 were populated via the (O-17, O-17 'gamma) reaction at 340 MeV. The gamma decay was measured with high resolution using the AGATA (advanced gamma tracking array demonstrator array). Differential cross sections were obtained at few different angles for the scattered particle. The results of the elastic scattering and inelastic excitation of 2(+), 3(,)(-) and 1(-) states are compared with distorted-wave Born approximation (DWBA) calculations, using both the standard collective form factor and a form factor obtained by folding microscopically calculated transition densities. This allowed to extract the isoscalar component of the 1(-) state at 6.424 MeV. The comparison of the present (17O, 17O 'gamma) data with existing (gamma,gamma') and (p, p') data in the corresponding region of the gamma continuum (6-11 MeV), characterized by a large E1 component, shows completely different behaviors of the cross section as a function of the nuclear excitation energy. The comparison of the data with DWBA calculations suggests a decrease of the isoscalar strength in the cross section with increasing excitation energy.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Crespi, F. C. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bracco, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nicolini, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lanza, E. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vitturi, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mengoni, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leoni, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Benzoni, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blasi, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Boiano, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bottoni, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brambilla, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Camera, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Corsi, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giaz, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Million, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pellegri, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vandone, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wieland, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bednarczyk, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ciemala, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kmiecik, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krzysiek, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maj, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bazzacco, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bellato, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Birkenbach, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bortolato, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Calore, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cederwall, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Angelis, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Desesquelles, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eberth, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Farnea, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gadea, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goergen, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gottardo, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hess, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Isocrate, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jolie, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jungclaus, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kempley, R. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Labiche, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Menegazzo, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michelagnoli, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Molini, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Napoli, D. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pullia, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quintana, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Recchia, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reiter, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sahin, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siem, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Soederstroem, P. -A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stezowski, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Theisen, Ch.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ur, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Valiente-Dobon, J. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-412152
DOI: 10.1103/PhysRevC.91.024323
Journal or Publication Title: Phys. Rev. C
Volume: 91
Number: 2
Date: 2015
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1089-490X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
GIANT-RESONANCES; DIPOLE RESONANCE; PHOTON DECAY; EXCITATION; SCATTERING; ENERGYMultiple languages
Physics, NuclearMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/41215

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