4th Pre-PAC Workshop for AGATA@LNL

Session

LoI 2

3 Oct 2023, 09:20

INFN-LNL

2. Searching for the second proton 0+ in the bubble nucleus 46Ar

Andrea Gottardo (Istituto Nazionale di Fisica Nucleare)

03/10/2023, 09:30

Physics aim

A recent measurement at the Spiral1 facility at GANIL has revealed that the $^{46}$Ar nucleus is a bubble nucleus with a filled $\pi d_{3/2}$ shell and an empty $\pi s_{1/2}$ [1]. This finding also explain the small B(E2) value for $^{46}$Ar 2$^+$ state.
This important discovery is in agreement with ab-initio calculations with the NNLOsat parametrization of the chiral...

14. Intruder configurations toward the Island of Inversion

Pablo Antonio Aguilera Jorquera (Istituto Nazionale di Fisica Nucleare)

03/10/2023, 09:50

In the previously accepted proposal we aimed to study the transition into the N = 20 Island of Inversion by multi-nucleon transfer reactions using a 26Mg beam on a 238U target. The proposal was evaluated by the PAC in December 2022. The experiment was scheduled and performed in April 2023.
In our original submission, we proposed to use a 26Mg beam at 7 MeV/A and a 1 mg/cm2 thick 238U target....

11. Lifetime measurements in the octupole bands of $^{220}$Ra

Marta Polettini (Istituto Nazionale di Fisica Nucleare)

03/10/2023, 10:10

In the landscape of nuclear shapes, dominated by reflection-symmetric forms leading to either spherical or axially-deformed arrangements, the occurrence of asymmetric pear-like nuclei is present only in selected areas of the nuclear chart, named Islands of Octupole Deformation. A measurement of lifetimes of the first excited states of $^{220}$Ra, being at the edge of the island of octupole...

18. Combined lifetime and transition-probability measurements in 96Zr via unsafe Coulomb excitation

Magda Zielinska (CEA Saclay)

03/10/2023, 10:30

We propose to Coulomb excite $^{96}$Zr on a $^{116}$Sn target 1-mg/cm$^2$ thick, using the maximum energy of $^{96}$Zr beam available from the TANDEM-ALPI facility (5.5 MeV/u). The data resulting from ``safe'' Coulomb excitation (24$^{\circ} \le \theta_{LAB} \le 27^{\circ}$) will be used to extract $B(E2)$ and $B(E3)$ values. Lifetimes of excited states that are within the sensitivity range...

19. Octupole correlations in exotic neutron-deficient xenon isotopes using novel multinucleon transfer reactions

Dr James Keatings

03/10/2023, 10:50

Multinucleon transfer reactions are known to provide a useful method of populating
neutron-rich nuclei in gamma-ray spectroscopy experiments. Recent theoretical
calculations have suggested that such reactions could also be used to produce neutron-
deficient nuclei, but this has not been properly tested in experiments. The calculations
suggest that it may be possible to produce the...