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Conference papers
Competition between $β$-delayed proton and $β$-delayed $γ$ decay of the exotic $T_z$ = -2 nucleus $^{56}$Zn and fragmentation of the IAS
B. Rubio
S.E.A. Orrigo
Y. Fujita
B. Blank
1
W. Gelletly
J. Agramunt
A. Algora
P. Ascher
1
B. Bilgier
L. Caceres
2
R.B. Cakirli
H. Fujita
E. Ganioglu
M. Gerbaux
J. Giovinazzo
1
S. Grévy
1
O. Kamalou
2
H.C. Kozer
L. Kucuk
T. Kurtukian Nieto
1
F. Molina
L. Popescu
A.M. Rogers
G. Susoy
C. Stodel
2
T. Suzuki
A. Tamii
J.C. Thomas
2
O. Kamalou 2
Author
H.C. Kozer
Author
L. Kucuk
Author
T. Kurtukian Nieto 1
Author IdHAL : t-kurtukian-nieto ResearcherId : http://www.researcherid.com/rid/J-1707-2014 ORCID : https://orcid.org/0000-0002-0028-0220
1
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan (Chemin du Solarium - BP 120 - 33175 Gradignan Cedex - France)
- Université Sciences et Technologies - Bordeaux 1 (351 cours de la Libération - 33405 Talence cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR5797 (France)
2
GANIL - Grand Accélérateur National d'Ions Lourds (Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR3266 (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/GANIL (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
Abstract : A very exotic decay mode at the proton drip-line, $\beta$-delayed $\gamma$-proton decay, has been observed in the $\beta$ decay of the $T_z$ = -2 nucleus $^{56}$Zn. Three $\gamma$-proton sequences have been observed following the $\beta$ decay. The fragmentation of the IAS in $^{56}$Cu has also been observed for the first time. The results were reported in a recent publication. At the time of publication the authors were puzzled by the competition between proton and $\gamma$ decays from the main component of the IAS. Here we outline a possible explanation based on the nuclear structure properties of the three nuclei involved, namely $^{56}$Zn, $^{56}$Cu and $^{55}$Ni, close to the doubly magic nucleus $^{56}$Ni. From the fragmentation of the Fermi strength and the excitation energy of the two populated 0$^{+}$ states we could deduce the off-diagonal matrix element of the charge-dependent part of the Hamiltonian responsible for the mixing. These results are compared with the decay of $^{55}$Cu with one proton less than $^{56}$Zn. For completeness we summarise the results already published.
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Conference papers
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http://hal.in2p3.fr/in2p3-01104065
Contributor : Michel Lion <>
Submitted on : Friday, January 16, 2015 - 8:58:20 AM
Last modification on : Friday, May 29, 2020 - 12:02:56 PM
Contributor : Michel Lion <>
Submitted on : Friday, January 16, 2015 - 8:58:20 AM
Last modification on : Friday, May 29, 2020 - 12:02:56 PM
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- HAL Id : in2p3-01104065, version 1
- ARXIV : 1501.03390
- DOI : 10.7566/JPSCP.6.020048
- INSPIRE : 1339287
Citation
B. Rubio, S.E.A. Orrigo, Y. Fujita, B. Blank, W. Gelletly, et al.. Competition between $β$-delayed proton and $β$-delayed $γ$ decay of the exotic $T_z$ = -2 nucleus $^{56}$Zn and fragmentation of the IAS. Conference on Advances in Radioactive Isotope Science (ARIS2014), Jun 2014, Tokyo, Japan. pp.020048, ⟨10.7566/JPSCP.6.020048⟩. ⟨in2p3-01104065⟩
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