Vitez-Sveiczer, A., Algora, A., Morales, A., I, Rubio, B., Kiss, G. G., Sarriguren, P., Van Isacker, P., de Angelis, G., Recchia, F., Nishimura, S., Agramunt, J., Guadilla, V, Montaner-Piza, A., Orrigo, S. E. A., Horvath, A., Napoli, D., Lenzi, S., Boso, A., Phong, V. H., Wu, J., Soderstrom, P-A, Sumikama, T., Suzuki, H., Takeda, H., Ahn, D. S., Baba, H., Doornebal, P., Fukuda, N., Inabe, N., Isobe, T., Kubo, T., Kubono, S., Sakurai, H., Shimizu, Y., Sidong, C., Blank, B., Ascher, P., Gerbaux, M., Goigoux, T., Giovinazzo, J., Grevy, S., Nieto, T. Kurtukian, Magron, C., Gelletly, W., Dombradi, Zs, Fujita, Y., Tanaka, M., Aguilera, P., Molina, F., Eberth, J., Diel, F., Lubos, D., Borcea, C., Ganioglu, E., Nishimura, D., Oikawa, H., Takei, Y., Yagi, S., Korten, W., de France, G., Davies, P., Liu, J., Lee, J., Lokotko, T., Kojouharov, I, Kurz, N., Shaffner, H. and Petrovici, A. (2022). The beta-decay of Kr-70 into Br-70: Restoration of the pseudo-SU(4) symmetry. Phys. Lett. B, 830. AMSTERDAM: ELSEVIER. ISSN 1873-2445

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Abstract

The beta-decay of the even-even nucleus Kr-70 with Z=N+2, has been investigated at the Radioactive Ion Beam Factory (RIBF) of the RIKEN Nishina Center using the BigRIPS fragment separator, the ZeroDegree Spectrometer, the WAS3ABI implantation station and the EURICA HPGe cluster array. Fifteen gamma-rays associated with the beta-decay of( 70)Kr into Br-70 have been identified for the first time, defining ten populated states below E-exc=3300 keV. The half-life of Kr-70 was derived with increased precision and found to be t(1/2)=45.19 +/- 0.14 ms. The beta-delayed proton emission probability has also been determined as epsilon(p)=0.545(23)%. An increase in the beta-strength to the yrast 1(+) state in comparison with the heaviest Z=N+2 system studied so far (Ge-62 decay) is observed that may indicate increased np correlations in the T=0 channel. The beta-decay strength deduced from the results is interpreted in terms of the proton-neutron quasiparticle random-phase approximation (pnQRPA) and also with a schematic model that includes isoscalar and isovector pairing in addition to quadrupole deformation. The application of this last model indicates an approximate realization of pseudo-SU(4) symmetry in this system. (C) 2022 The Author(s). Published by Elsevier B.V.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Vitez-Sveiczer, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Algora, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morales, A., IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rubio, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kiss, G. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sarriguren, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Isacker, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Angelis, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Recchia, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishimura, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Agramunt, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guadilla, VUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montaner-Piza, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Orrigo, S. E. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Horvath, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Napoli, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lenzi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Boso, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Phong, V. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wu, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Soderstrom, P-AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sumikama, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Suzuki, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takeda, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ahn, D. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baba, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Doornebal, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fukuda, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Inabe, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Isobe, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kubo, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kubono, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sakurai, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shimizu, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sidong, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blank, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ascher, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gerbaux, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goigoux, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giovinazzo, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grevy, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nieto, T. KurtukianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Magron, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gelletly, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dombradi, ZsUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujita, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tanaka, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aguilera, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Molina, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eberth, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Diel, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lubos, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Borcea, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ganioglu, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nishimura, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Oikawa, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Takei, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yagi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Korten, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de France, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Davies, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lee, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lokotko, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kojouharov, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kurz, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shaffner, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Petrovici, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-697815
DOI: 10.1016/j.physletb.2022.137123
Journal or Publication Title: Phys. Lett. B
Volume: 830
Date: 2022
Publisher: ELSEVIER
Place of Publication: AMSTERDAM
ISSN: 1873-2445
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
RP-PROCESS; NUCLEOSYNTHESIS; IDENTIFICATION; EXCITATION; NUCLEI; STATES; SPINMultiple languages
Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & FieldsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/69781

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