6th Pre-PAC Workshop for AGATA@LNL

Session

LoI 2

19 Nov 2024, 10:00

INFN-LNL

8. Multiple-Shape Coexistence in the Z ≈ 50 region: Coulomb-Excitation study of 122Te

Desislava Kalaydjieva (University of Guelph), Dr Marco Siciliano (Argonne National Laboratory)

19/11/2024, 10:00

We propose to perform a multi-step Coulomb-excitation study of $^{122}$Te in order to investigate its low-lying collective structures, which can potentially be interpreted in the spirit of multiple-shape coexistence. The AGATA array will be employed to obtain $\gamma$-ray intensities in coincidence with the scattered $^{58}$Ni beam ions detected at backward angles by the SPIDER particle...

10. Using Coulomb Excitation to Test the Multiple Shape-Coexistence Interpretation of 112Cd

Magda Zielinska (CEA Saclay)

19/11/2024, 10:20

We propose to Coulomb excite 112Cd using a 60Ni beam of 2pnA intensity. The γ rays depopulating Coulomb-excited states of 112Cd will be detected by 13 triple clusters (ATC) of the AGATA array working in coincidence with the SPIDER array to detect back-scattered beam particles. SPIDER will be placed at laboratory angles ranging from 124◦ to 161◦ (θCM=151◦–171◦) to enhance the probability of...

11. Shape coexistence in $^{52}$Cr: lifetime measurement of the 0$_2^+$ state

Dr Sara Pigliapoco (Istituto Nazionale di Fisica Nucleare)

19/11/2024, 10:40

Coexistence between spherical and deformed shapes is largely found in and near semi-magic or doubly-magic nuclei.
The region between the doubly-magic $^{48}$Ca and $^{56}$Ni nuclei is predicted to present phenomena of shape coexistence but information on E0 and E2 transition strengths between deformed and spherical configurations are still rather scarce.
In $^{52}$Cr ($Z=24$, $N=28$) a...

2. $\gamma$ decay of IAS in $^{71}$Ge: a new pathway to Gallium anomaly

Damiano Stramaccioni (Istituto Nazionale di Fisica Nucleare)

19/11/2024, 11:00

Inverse beta decay (IBD) is a crucial process historically employed to study neutrinos. For example, discrepancies between measured and expected IBD rates on $^{71}$Ga, the so-called $Gallium$ $anomaly$, suggest the possible existence of sterile neutrinos. A recent publication showed that the poorly known associated NME can be extracted measuring the gamma decay width from the Isobaric Analog...