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Observation of Ni-54 : Cross-Conjugate Symmetry in f(7/2) Mirror Energy Differences

Gadea, A, Lenzi, S M, Lunardi, S, Marginean, N, Zuker, A P, de Angelis, G, Axiotis, M, Martinez, T, Napoli, D R, Farnea, E , Menegazzo, R, Pavan, P, Ur, C A, Bazzacco, D, Venturelli, R, Kleinheinz, P, Bednarczyk, P, Curien, D, Dorvaux, O, Nyberg, J, Grawe, H, Gorska, M, Palacz, M, Lagergren, K, Milechina, L, Ekman, J, Rudolph, D, Andreoiu, C, Bentley, M A, Gelletly, W, Rubio, B, Algora, A, Nacher, E, Caballero, L, Trotta, M and Moszynski, M (2006) Observation of Ni-54 : Cross-Conjugate Symmetry in f(7/2) Mirror Energy Differences Physical Review Letters, 97 (15).


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Gamma decays from excited states up to J(pi)=6() in the N=Z-2 nucleus Ni-54 have been identified for the first time. Level energies are compared with those of the isobars Co-54 and Fe-54 and of the cross-conjugate nuclei of mass A=42. The good but puzzling f(7/2) cross-conjugate symmetry in mirror and triplet energy differences is analyzed. Shell model calculations reproduce the new data but the necessary nuclear charge-dependent phenomenology is not fully explained by modern nucleon-nucleon potentials.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Gadea, A
Lenzi, S M
Lunardi, S
Marginean, N
Zuker, A P
de Angelis, G
Axiotis, M
Martinez, T
Napoli, D R
Farnea, E
Menegazzo, R
Pavan, P
Ur, C A
Bazzacco, D
Venturelli, R
Kleinheinz, P
Bednarczyk, P
Curien, D
Dorvaux, O
Nyberg, J
Grawe, H
Gorska, M
Palacz, M
Lagergren, K
Milechina, L
Ekman, J
Rudolph, D
Andreoiu, C
Bentley, M A
Rubio, B
Algora, A
Nacher, E
Caballero, L
Trotta, M
Moszynski, M
Date : 1 January 2006
DOI : 10.1103/PhysRevLett.97.152501
Additional Information : Published in <i>Physical Review Letters,</i> Vol. 97, Iss. 15. Copyright 2006 American Physical Society. Click <a href=>here</a> to access the journal's website.
Depositing User : Mr Adam Field
Date Deposited : 27 May 2010 14:07
Last Modified : 16 Jan 2019 16:18

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