Beta decay of the exotic Tz = - 2, $^{56}$Zn nucleus and half-life of various proton-rich Tz = -1 nuclei
S.E.A. Orrigo
(1)
,
B. Rubio
(1)
,
J. Agramunt
(1)
,
A. Algora
(1)
,
F. Molina
(1)
,
Bertram Blank
(2)
,
P. Ascher
(2)
,
M. Gerbaux
(2)
,
J. Giovinazzo
(2)
,
S. Grévy
(2)
,
T. Kurtukian Nieto
(2)
,
W. Gelletly
(3)
,
B. Bilgier
,
R.B. Cakirli
,
E. Ganioglu
,
H.C. Kozer
,
L. Kucuk
,
G. Susoy
,
L. Caceres
(4)
,
O. Kamalou
(4)
,
C. Stodel
(4)
,
J.C. Thomas
(4)
,
H. Fujita
(5)
,
T. Suzuki
(5)
,
A. Tamii
(5)
,
L. Popescu
(6)
,
A.M. Rogers
(7)
,
Y. Fujita
(5)
1
IFIC -
Instituto de Fisica Corpuscular
2 NEX - Noyaux exotiques
3 Department of Physics, University of Surrey
4 GANIL - Grand Accélérateur National d'Ions Lourds
5 Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
6 SKC CEN, Belgique
7 Physics Division, Argonne National Laboratory
2 NEX - Noyaux exotiques
3 Department of Physics, University of Surrey
4 GANIL - Grand Accélérateur National d'Ions Lourds
5 Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
6 SKC CEN, Belgique
7 Physics Division, Argonne National Laboratory
Bertram Blank
- Fonction : Auteur
- PersonId : 738372
- IdHAL : bertram-blank
- ORCID : 0000-0001-8050-6850
- IdRef : 069503834
P. Ascher
- Fonction : Auteur
- PersonId : 739967
- IdHAL : pauline-ascher
- ORCID : 0000-0002-1990-0848
- IdRef : 157777685
M. Gerbaux
- Fonction : Auteur
- PersonId : 1173352
- IdHAL : mathias-gerbaux
- ORCID : 0000-0002-3852-2643
J. Giovinazzo
- Fonction : Auteur
- PersonId : 738930
- IdHAL : jerome-giovinazzo
- ORCID : 0000-0001-7436-8877
- IdRef : 198020287
T. Kurtukian Nieto
- Fonction : Auteur
- PersonId : 10429
- IdHAL : t-kurtukian-nieto
- ORCID : 0000-0002-0028-0220
- IdRef : 259022632
B. Bilgier
- Fonction : Auteur
R.B. Cakirli
- Fonction : Auteur
E. Ganioglu
- Fonction : Auteur
H.C. Kozer
- Fonction : Auteur
L. Kucuk
- Fonction : Auteur
G. Susoy
- Fonction : Auteur
C. Stodel
- Fonction : Auteur
- PersonId : 177922
- IdHAL : christelle-stodel
- ORCID : 0000-0003-4658-2213
- IdRef : 227006291
J.C. Thomas
- Fonction : Auteur
- PersonId : 738662
- IdHAL : jean-charles-thomas
- ORCID : 0000-0001-6618-9772
Résumé
Preliminary results of an experimental study of the beta -decay of the exotic T$_z$ = - 2, $^{56}$Zn nucleus and other proton-rich T$_z$ = -1 nuclei are presented. The ions were produced at GANIL using fragmentation reactions, separated by the LISE3 spectrometer and implanted in a double-sided silicon strip detector surrounded by Ge detectors. The half-lives of $^{56}$Zn and four T$_z$ = -1 nuclei in the fp-shell have been measured. While the decay of the T$_z$ = -1 nuclei proceeds essentially by -delayed gamma emission, in the case of $^{56}$Zn -delayed proton emission is also observed. Moreover, the exotic -delayed gamma-proton decay is seen for the first time. The information from the decay study has been used to determine the absolute Fermi and Gamow-Teller transition strengths. The results for $^{56}$Zn have been compared with the mirror Charge Exchange process, the ($^3$He,t) reaction on the T$_z$ = +2, $^{56}$Fe target nucleus. This comparison is important for understanding the $^{56}$Zn decay data.