activity
20242026
collaborators

8 papers

nucl-ex2026

Precise determination of electron-capture value of Sn decay related to electron neutrino mass measurements

Zhuang Ge, Tommi Eronen, Vasile Alin Sevestrean +15

A high-precision measurement of the electron-capture (EC) decay value for the ground-state-to-ground-state (gs-to-gs) transition of Sn to In has been performed…

nucl-ex2025

High-precision direct decay energy measurements of the electron-capture decay of Tc

Zhuang Ge, Tommi Eronen, Vasile Alin Sevestrean +27

A direct measurement of the ground-state-to-ground-state electron-capture decay () value of Tc has been conducted employing the high resolving power phase-im…

nucl-ex2025

Isomeric yield ratios and mass spectrometry of Y and Nb isotopes in the neutron-rich N=60 region: the unusual case of Y

Simone Cannarozzo, Stephan Pomp, Anu Kankainen +14

The isomeric yield ratio (IYR) of fission products is an observable that carries relevant information about the fragments emerging from the scission of a fissioning nucleus. We rep…

nucl-ex2025

Disentangling the influence of excitation energy and compound nucleus angular momentum on fission fragment angular momentum

Simone Cannarozzo, Stephan Pomp, Andreas Solders +14

The origin of the large angular momenta observed for fission fragments is still a question under discussion. To address this, we study isomeric yield ratios (IYR), i.e. the relativ…

nucl-ex2025

Ultra-low value for the allowed decay of Ag confirmed via mass measurements

J. Ruotsalainen, M. Stryjczyk, M. Ramalho +5

The mass of the electron-antineutrino can be determined in dedicated measurements of the spectral shape near the endpoint of a $β^-$ transition, with a low value enh…

nucl-ex2025

High-precision mass measurements of the ground and isomeric states in Ag

J. Ruotsalainen, D. A. Nesterenko, M. Stryjczyk +26

The masses of the ground and isomeric states in Ag have been measured using the phase-imaging ion-cyclotron-resonance technique at the JYFLTRAP double Penning trap mass…