Lifetime measurements using γ-γ coincidence techniques following a heavy ion induced fusion evaporation reaction; 46Ti, an example

1979 ◽  
Vol 161 (2) ◽  
pp. 291-297 ◽  
Author(s):  
N.R.F. Rammo ◽  
A.M. Al-Naser ◽  
A.H. Behbehani ◽  
L.L. Green ◽  
A.N. James ◽  
...  
2006 ◽  
Vol 15 (07) ◽  
pp. 1531-1540 ◽  
Author(s):  
D. TONEV ◽  
P. PETKOV ◽  
D. L. BALABANSKI ◽  
G. DE ANGELIS ◽  
A. GADEA ◽  
...  

Lifetimes of exited states in 134 Pr were measured be means of the recoil distance Doppler-shift and Doppler-shift attenuation techniques. The experiments were performed at IReS, Strasbourg using the EUROBALL IV spectrometer, in conjunction with the inner BGO ball and the Cologne coincidence plunger apparatus. Exited states in 134 Pr were populated in the fusion-evaporation reaction 119 Sn (19 F , 4 n )134 Pr . Reduced transition probabilities in 134 Pr are compared to the predictions of the two quasiparticle+triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in 134 Pr underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in 134 Pr can be supported.


2014 ◽  
Vol 89 (2) ◽  
Author(s):  
S. S. Bhattacharjee ◽  
R. Bhattacharjee ◽  
R. Chakrabarti ◽  
R. Raut ◽  
S. S. Ghugre ◽  
...  

2021 ◽  
Vol 57 (5) ◽  
Author(s):  
G. Häfner ◽  
A. Esmaylzadeh ◽  
J. Jolie ◽  
J.-M. Régis ◽  
C. Müller-Gatermann ◽  
...  

AbstractThe level lifetimes of the $$2_1^+$$ 2 1 + and $$4_1^+$$ 4 1 + states in $$^{182}\hbox {Pt}$$ 182 Pt have been re-measured employing the $$\gamma $$ γ –$$\gamma $$ γ fast-timing technique using fast $$\hbox {LaBr}_3$$ LaBr 3 (Ce) scintillators. Excited states in the nucleus of interest were populated by the fusion-evaporation reaction $$^{170}\hbox {Yb}(^{16}\hbox {O},\hbox {4n})^{182}\hbox {Pt}$$ 170 Yb ( 16 O , 4n ) 182 Pt at a beam energy of 87 MeV provided by the FN Tandem accelerator of the University of Cologne. The lifetime of the $$2_1^+$$ 2 1 + state was re-measured with high accuracy to be $$\tau = 563(12)~$$ τ = 563 ( 12 ) ps and resolves inconsistencies from previous measurements. Experimental results are compared to theoretical calculations in the framework of the sd-IBM with and without configuration mixing.


2009 ◽  
Vol 80 (3) ◽  
Author(s):  
R. Chakrabarti ◽  
S. Mukhopadhyay ◽  
Krishichayan ◽  
A. Chakraborty ◽  
A. Ghosh ◽  
...  

2019 ◽  
Vol 223 ◽  
pp. 01072
Author(s):  
Irene Zanon ◽  
Marco Siciliano ◽  
Alain Goasduff ◽  
Philipp R. John

The mercury isotopic chain is depicted as one of the best fields to observe many phenomena related to collectivity evolution as, for instance, shape transition, shape coexistence or shape staggering. In this context, the 189Hg presents several interesting aspects and is still relatively unexplored. The nucleus has been studied at the Laboratori Nazionali di Legnaro using a fusion-evaporation reaction and the γ rays emitted have been detected by the GALILEO array, coupled with Neutron Wall and the GALILEO plunger. The presorting and the preliminary results are presented.


2008 ◽  
Vol 42 (2) ◽  
pp. 025002 ◽  
Author(s):  
Elmar Träbert ◽  
Jens Hoffmann ◽  
Claude Krantz ◽  
Andreas Wolf ◽  
Yasuyuki Ishikawa ◽  
...  

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