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Isospin symmetry and proton decay: Identification of the 10(+) isomer in (54)Ni

Rudolph, D, Hoischen, R, Hellstrom, M, Pietri, S, Podolyak, Z, Regan, PH, Garnsworthy, AB, Steer, SJ, Becker, F, Bednarczyk, P, Caceres, L, Doornenbal, P, Gerl, J, Gorska, M, Grebosz, J, Kojouharov, I, Kurz, N, Prokopowicz, W, Schaffner, H, Wollersheim, HJ, Andersson, L-L, Atanasova, L, Balabanski, DL, Bentley, MA, Blazhev, A, Brandau, C, Brown, JR, Fahlander, C, Johansson, EK, Jungclaus, A and Lenzi, SM (2008) Isospin symmetry and proton decay: Identification of the 10(+) isomer in (54)Ni PHYSICAL REVIEW C, 78 (2). ? - ?. ISSN 0556-2813

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Abstract

The gamma decays from an isomeric 10(+) state at 6457 keV in the nucleus Ni-54(28)26 have been identified using the GSI fragment separator in conjunction with the RISING Ge-detector array. The state is interpreted as the isobaric analog of the 6527-keV 10(+) isomer in Fe-54(26)28.The results are discussed in terms of isospin-dependent shell-model calculations. Clear evidence is presented for a discrete l = 5 proton decay branch into the first excited 9/2(-) state of the daughter Co-53. This decay is the first of its kind observed following projectile fragmentation reactions.

Item Type: Article
Additional Information: Copyright 2008 The American Physical Society.
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Nuclear, Physics, SHELL-MODEL, (CO-53)M, STATE, GSI
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 22 Aug 2012 08:22
Last Modified: 23 Sep 2013 19:32
URI: http://epubs.surrey.ac.uk/id/eprint/711991

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