Journal Article

Isomeric Lifetime Measurement in the Neutron-rich 189 Ta

Esmaylzadeh, Arwin, Pigliapoco, Sara, Kostyleva, Daria, Kojouharov, Ivan, Aggez, Guler, Koseoglou, Pavlos, Regan, Patrick, Hornung, Christine, Kurz, Nikolaus, Kosir, Gregor, Albers, Helena M., Plaß, Wolfgang, Lozeva, Radomira, Pelonis, Stefanos, Górska, Magdalena, John, Philipp R., Scheidenberger, Christoph, Blazhev, Andrey, Cederwall, Bo, Million, Bénédicte, Jazrawi, Shaheen, Jones, Calum, Sood, Arshiya, Mikolajczuk, Michal, Schaffner, Henning, Vasileiou, Polytimos, Hall, Oscar, Armstrong, Michael, Alhomaidhi, Sultan, Wiederhold, Johannes, Zyriliou, Aikaterini, Ha, Jeongsu, Quintana, Begoña, Vesic, Jelena, Pietralla, Norbert, Mukha, Ivan, Doncel, Maria, Boutachkov, Plamen, Mertzimekis, Theo J., Ahmed, Usama, Expósito, Marcos L., Benzoni, Giovanna, García, Jaime B., Bruce, Alison, Mistry, Andrew K., Karayonchev, Vasil, Arici, Tugba, Orrigo, Sonja E. A., zhang, guangxin, Polettini, Marta, Heggen, Henning, Sahin, Elif, Chishti, Muhammad M. R., Yaneva, Aleksandrina, Sexton, Lewis, Pellumaj, Julgen, Singh, Nara, Knafla, Lukas, Wollersheim, Hans-Jürgen, Jolie, Jan, Weick, Helmut, Fraile, Luis M., Gerl, Jürgen, Dob

2023

Overview

Isomeric states of the neutron-rich isotope 189 73 Ta 116 were populated via fragmentation of a primary beam of 208 Pb ions at 1 GeV/u impinging on a 9 Be target at GSI, Darmstadt, Germany. The isotopes of interest were separated, identified and delivered to the DESPEC setup. Two isomers were deduced in 189 Ta 116 and their lifetimes were measured based on the γ-ray time distributions.