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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, Zsolt, 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), ARTN 0.

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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
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Rudolph, D
Hoischen, R
Hellstrom, M
Pietri, S
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
Lenzi, SM
Date : 1 August 2008
DOI : 10.1103/PhysRevC.78.021301
Uncontrolled Keywords : Science & Technology, Physical Sciences, Physics, Nuclear, Physics, PHYSICS, NUCLEAR, SHELL-MODEL, (CO-53)M, STATE, GSI
Related URLs :
Additional Information : Copyright 2008 The American Physical Society.
Depositing User : Mr Adam Field
Date Deposited : 22 Aug 2012 08:22
Last Modified : 30 Mar 2020 10:12

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