ISOLDE Workshop and Users meeting 2023

Session

Rare Decays II

1 Dec 2023, 11:15

503/1-001 - Council Chamber (CERN)

Conveners

Rare Decays II

• Luis M Fraile (Universidad Complutense (ES))

68. Fast-timing in the $^{128}$Cd$\rightarrow$$^{128}$In$\rightarrow$$^{128}$Sn $\beta$-decay chain

Marcos Llanos Exposito (Universidad Complutense (ES))

01/12/2023, 11:15

Submitted oral (In person)

Isotopic chains close to the magic proton number \textit{Z}=50 have motivated extensive experimental and theoretical efforts in the last decades, since they provide an excellent ground to study shell-evolution and to investigate the interplay between single-particle and collective degrees of freedom. The systematic study of excited structure of nuclei in the region, and specifically the...

45. Accurate characterization of the 2+ isospin doublet of 8Be in beta -decay

Daniel Fernandez Ruiz (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

01/12/2023, 11:30

Submitted oral (In person)

In this contribution, an accurate characterization of the $2^+$ isospin mixed doublet of $^8Be$ is provided. The excitation spectrum of $^8Be$ populated in the beta decay of $^8B$ is analysed via two methods; an R-matrix approach and an alternative approach based on the beta recoil. Through this complementary analysis, the isospin mixing in the doublet and the variation with excitation energy...

41. Analysis of experiment IS570: Beta decay of ${}^{64-66}$Ge and ${}^{64-66}$Ga

Selene Barbara Parra Aedo (Univ. of Valencia and CSIC (ES))

01/12/2023, 11:45

Submitted oral (In person)

Nucleosynthesis in explosive hydrogen burning at high temperatures (T$\ > 10^8$ K) is characterized mainly by the rapid proton capture rp-process. One of the possible sites for the rp-process are Type I X-ray bursts (XRBs). Several N=Z nuclei, such as ${}^{64}$Ge, act as waiting points in the nuclear flow. The beta decays of these waiting points are needed in theoretical modeling for...

22. Total absorption gamma-ray spectroscopy at ISOLDE for isospin mirror asymmetry studies

Victor Guadilla Gomez (University of Warsaw (PL))

01/12/2023, 12:00

Submitted oral (online)

The isospin mirror asymmetry parameter in mirror systems is evaluated based on the $\beta$-decay data of the mirror partners. In particular, $\beta$ decay intensities are traditionally obtained from $\gamma$-ray spectroscopy experiments with HPGe detectors. However, due to the limited efficiency of such detectors, this approach is known to be potentially affected by the Pandemonium effect [1],...