Krzysiek, M., Kmiecik, M., Maj, A., Bednarczyk, P., Bracco, A., Crespi, F. C. L., Lanza, E. G., Avigo, R., Bazzacco, D., Benzoni, G., Birkenbach, B., Blasi, N., Bottoni, S., Camera, F., Ceruti, S., Ciemala, M., De Angelis, G., Farnea, E., Gadea, A., Giaz, A., Gorgen, A., Gottardo, A., Grebosz, J., Isocrate, R., Leoni, S., Lunardi, S., Mazurek, K., Mengoni, D., Michelagnoli, C., Million, B., Morales, A. I., Napoli, D. R., Nicolini, R., Pellegri, L., Recchia, F., Siebeck, B., Siem, S., Ur, C., Valiente-Dobon, J. J., Wieland, O. and Zieblinski, M. (2016). GAMMA DECAY OF THE POSSIBLE 1(-) TWO-PHONON STATE IN Ce-140 EXCITED VIA INELASTIC SCATTERING OF O-17. Acta Phys. Pol. B, 47 (3). S. 859 - 867. KRAKOW: JAGIELLONIAN UNIV PRESS. ISSN 1509-5770

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Abstract

The gamma decay from the low-lying dipole states of Ce-140 excited via inelastic scattering of O-17 at bombarding energy of 340 MeV was measured using the high resolution AGATA-Demonstrator array in coincidence with scattered ions detected in two segmented Delta E-E silicon detectors of the TRACE array. Particular attention is here given to the decay of the first 1(-) state at 3643 keV which is considered to be of two-phonon character. The gamma-gamma coincidence method was applied to select desired decay branch. No direct decay from this state was observed to 2(+) and 3(-) phonon states which would be the proof of the pure harmonic coupling. The comparison between experimentally obtained differential cross sections and analysis with distorted wave Born approximation (DWBA) allowed to conclude that the first 1(-) state has a different nature than higher-lying pygmy dipole states. This was possible using the form factor obtained by folding a microscopically calculated transition density.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Krzysiek, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kmiecik, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maj, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bednarczyk, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bracco, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Crespi, F. C. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lanza, E. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Avigo, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bazzacco, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Benzoni, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Birkenbach, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blasi, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bottoni, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Camera, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ceruti, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ciemala, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
De Angelis, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Farnea, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gadea, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giaz, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gorgen, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gottardo, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grebosz, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Isocrate, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leoni, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lunardi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mazurek, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mengoni, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michelagnoli, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Million, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morales, A. I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Napoli, D. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nicolini, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pellegri, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Recchia, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siebeck, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siem, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ur, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Valiente-Dobon, J. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wieland, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zieblinski, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-282299
DOI: 10.5506/APhysPolB.47.859
Journal or Publication Title: Acta Phys. Pol. B
Volume: 47
Number: 3
Page Range: S. 859 - 867
Date: 2016
Publisher: JAGIELLONIAN UNIV PRESS
Place of Publication: KRAKOW
ISSN: 1509-5770
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEIMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/28229

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