Kr-67 TWO-PROTON RADIOACTIVITY: RESULTS AND THEORETICAL INTERPRETATIONS

Goigoux, T.; Ascher, P.; Blank, B.; Gerbaux, M.; Giovinazzo, J.; Grevy, S.; Nieto, T.; Magron, C.; Ahn, D.; Doornenbal, P.; Fukuda, N.; Inabe, N.; Kiss, G.; Kubo, T.; Kubono, S.; Nishimura, S.; Sakurai, H.; Shimizu, Y.; Sidong, C.; Soderstrom, P-A; Sumikama, T.; Suzuki, H.; Takeda, H.; Vi, P.; Wu, J.; Fujita, Y.; Tanaka, M.; Agramunt, J.; Algora, A.; Guadilla, V; Montaner-Piza, A.; Morales, A.; Orrigo, S.; Rubio, B.; Gelletly, W.; Aguilera, P.; Molina, F.; Diel, F.; Lubos, D.; de Angelis, G.; Napoli, D.; Borcea, C.; Boso, A.; Cakirli, Rabia; Ganioglu, Ela; Chiba, J.; Nishimura, D.; Oikawa, H.; Takei, Y.; Yagi, S.; Wimmer, K.; De France, G.; Go, S.; Brown, B.

doi:10.5506/aphyspolb.50.399

Kr-67 TWO-PROTON RADIOACTIVITY: RESULTS AND THEORETICAL INTERPRETATIONS

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Goigoux T., Ascher P., Blank B., Gerbaux M., Giovinazzo J., Grevy S., ...More

ACTA PHYSICA POLONICA B, vol.50, no.3, pp.399-404, 2019 (SCI-Expanded)

Publication Type: Article / Article
Volume: 50 Issue: 3
Publication Date: 2019
Doi Number: 10.5506/aphyspolb.50.399
Journal Name: ACTA PHYSICA POLONICA B
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.399-404
Istanbul University Affiliated: Yes

Abstract

The two-proton radioactivity is a unique tool to study the nuclear structure beyond the proton drip-line. Since its discovery in 2002, the known emitters have been Mg-19, Fe-45, Ni-48, Zn-54 and Kr-67. Kr-67 was observed for the first time at the RIKEN Nishina Center in 2015. Its decay energy was measured at 1690(17) keV with a branching ratio of 37(14) %. The halflife, 7.4(30) ms, was found in contradiction with theoretical calculations, pointing out effects of decay dynamics and nuclear deformation.