Wieland, O., Bracco, A., Camera, F., Avigo, R., Baba, H., Nakatsuka, N., Aumann, T., Banerjee, S. R., Benzoni, G., Boretzky, K., Caesar, C., Ceruti, S., Chen, S., Crespi, F. C. L., Derya, V., Doornenbal, P., Fukuda, N., Giaz, A., Ieki, K., Kobayashi, N., Kondo, Y., Koyama, S., Kubo, T., Matsushita, M., Million, B., Motobayashi, T., Nakamura, T., Nishimura, M., Otsu, H., Ozaki, T., Saito, A. T., Sakurai, H., Scheit, H., Schindler, F., Schrock, P., Shiga, Y., Shikata, M., Shimoura, S., Steppenbeck, D., Sumikama, T., Takeuchi, S., Taniuchi, R., Togano, Y., Tscheuschner, J., Tsubota, J., Wang, H., Wimmer, K. and Yoneda, K. (2018). Low-lying dipole response in the unstable Ni-70 nucleus. Phys. Rev. C, 98 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

The Coulomb excitation of the neutron-rich nucleus Ni-70 was measured in inverse kinematics at 260A MeV bombarding energy and with a Au-197 target. The beam energy allowed us to study the dipole response around the neutron separation energy (up to about 12 MeV). The experiment was performed at the RIKEN Radioactive Isotope Beam Factory (RIBF). The gamma decay from the scattered Ni-70 ions at around zero degree was measured with a scintillator detection system composed of large volume LaBr3:Ce detectors (HECTOR+ array) and NaI(Tl) detectors (DALI2 array). Results were obtained for the E1 strength in the region where the dipole response is characterized by the presence of the pygmy dipole resonance. The measured E1 strength is found to be larger as compared with that of Ni-68 below the neutron binding energy. The measured E1 strength as a function of energy is compared with available predictions based on relativistic and nonrelativistic approaches, and only in some cases does theory give a reasonable account of the data.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Wieland, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bracco, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Camera, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Avigo, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baba, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nakatsuka, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aumann, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Banerjee, S. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Benzoni, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Boretzky, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Caesar, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ceruti, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chen, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Crespi, F. C. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Derya, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Doornenbal, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fukuda, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giaz, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ieki, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kobayashi, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kondo, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Koyama, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kubo, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matsushita, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Million, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Motobayashi, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nakamura, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishimura, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Otsu, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ozaki, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Saito, A. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sakurai, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scheit, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schindler, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schrock, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shiga, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shikata, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shimoura, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Steppenbeck, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sumikama, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takeuchi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Taniuchi, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Togano, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tscheuschner, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tsubota, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wimmer, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yoneda, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-162217
DOI: 10.1103/PhysRevC.98.064313
Journal or Publication Title: Phys. Rev. C
Volume: 98
Number: 6
Date: 2018
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9993
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
INELASTIC-SCATTERING; STRENGTH FUNCTION; GAMMA-DECAY; COULOMB; RESONANCE; PARAMETRIZATION; PB-208; STATEMultiple languages
Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/16221

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