Identification of gamma rays from Au-172 and alpha decays of Au-172, Ir-168, and Re-164
Tarih
2009Yazar
Nyman, M.
Sandzelius, M.
Scholey, C.
Ketelhut, S.
Khaplanov, A.
Leino, M.
Niikura, M.
Paul, E. S.
Ozgur, İffet
Wyss, R.
UUSITALO, J.
Sorri, J.
Saren, J.
Rahkila, P.
Ganioglu, Ela
Peura, P.
Andgren, K.
Back, T.
HORNILLOS, M. B. Gomez
Grahn, T.
GREENLEES, P. T.
Ideguchi, E.
Jakobsson, U.
Johnson, A.
JONES, P. M.
Julin, R.
JUUTINEN, J.
Hadinia, B.
Cederwall, B.
Page, R. D.
Üst veri
Tüm öğe kaydını gösterÖzet
The very neutron deficient odd-odd nucleus Au-172 was studied in reactions of 342 and 348 MeV Kr-78 beams with an isotopically enriched Ru-96 target. The alpha decays previously reported for Au-172 were confirmed and the decay chain extended down to Tm-152 through the discovery of a new alpha-decaying state in Re-164 [E-alpha=5623(10) keV; t(1/2)=864(-110)(+150) ms; b(alpha)=3(1)%]. Fine structure in these alpha decays of Au-172 and Ir-168 were identified. A new alpha-decaying state was also observed and assigned as the ground state in Au-172 [E-alpha=6762(10) keV; t(1/2)=22(-5)(+6) ms]. This decay chain was also correlated down to Tm-152 through previously reported alpha decays. Prompt gamma rays from excited states in Au-172 have been identified using the recoil-decay tagging technique. The partial level scheme constructed for Au-172 indicates that it has an irregular structure. Possible configurations of the alpha-decaying states in Au-172 are discussed in terms of the systematics of nuclei in this region and total Routhian surface calculations.
Koleksiyonlar
- Makale [92796]