Watanabe, H., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soederstroem, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhaeuser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Li, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Takeda, H., Wendt, A. and Yoshinaga, K. (2013). Isomers in Pd-128 and Pd-126: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes. Phys. Rev. Lett., 111 (15). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

The level structures of the very neutron-rich nuclei Pd-128 and Pd-126 have been investigated for the first time. In the r-process waiting-point nucleus Pd-128, a new isomer with a half-life of 5.8(8) mu s is proposed to have a spin and parity of 8(+) and is associated with a maximally aligned configuration arising from the g(9/2) proton subshell with seniority v = 2. For Pd-126, two new isomers have been identified with half-lives of 0.33(4) and 0.44(3) mu s. The yrast 2(+) energy is much higher in Pd-128 than in Pd-126, while the level sequence below the 8(+) isomer in Pd-128 is similar to that in the N = 82 isotone Cd-130. The electric quadrupole transition that depopulates the 8(+) isomer in Pd-128 is more hindered than the corresponding transition in Cd-130, as expected in the seniority scheme for a semimagic, spherical nucleus. These experimental findings indicate that the shell closure at the neutron number N = 82 is fairly robust in the neutron-rich Pd isotopes.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Watanabe, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lorusso, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishimura, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xu, Z. Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sumikama, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Soederstroem, P. -A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Doornenbal, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Browne, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gey, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jung, H. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Taprogge, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vajta, Zs.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wu, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yagi, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baba, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Benzoni, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chae, K. Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Crespi, F. C. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fukuda, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gernhaeuser, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Inabe, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Isobe, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jungclaus, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kameda, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kim, G. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kim, Y. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kojouharov, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kondev, F. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kubo, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kurz, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kwon, Y. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lane, G. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Li, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moon, C. -B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montaner-Piza, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moschner, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Naqvi, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Niikura, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishibata, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishimura, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Odahara, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Orlandi, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Patel, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Podolyak, Zs.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sakurai, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schaffner, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simpson, G. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Steiger, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Suzuki, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takeda, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wendt, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yoshinaga, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-474132
DOI: 10.1103/PhysRevLett.111.152501
Journal or Publication Title: Phys. Rev. Lett.
Volume: 111
Number: 15
Date: 2013
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEI; DEFORMATION; SN-100Multiple languages
Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/47413

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