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Isospin breaking in the $^{71}$Kr and $^{71}$Br mirror system

Fuente: arXiv

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Bibliographic Details
Main Authors:	Algora, A., Vitéz-Sveiczer, A., Poves, A., Kiss, G. G., Rubio, B., de Angelis, G., Recchia, F., Nishimura, S., Rodriguez, T., Sarriguren, P., Agramunt, J., Guadilla, V., Montaner-Pizá, A., Morales, A. I., Orrigo, S. E. A., Napoli, D., Lenzi, S. M., Boso, A., Phong, V. H., Wu, J., Söderström, P. -A., Sumikama, T., Suzuki, H., Takeda, H., Ahn, D. S., Baba, H., Doornenbal, P., Fukuda, N., Inabe, N., Isobe, T., Kubo, T., Kubono, S., Sakurai, H., Shimizu, Y., Chen, S., Blank, B., Ascher, P., Gerbaux, M., Goigoux, T., Giovinazzo, J., Grévy, S., Nieto, T. Kurtukián, Magron, C., Gelletly, W., Dombrádi, 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., Schaffner, H., Kruppa, A.
Format:	Preprint
Published:	2024
Subjects:	Nuclear Experiment Nuclear Theory
Online Access:	Acceder al recurso
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_version_	1866915001651953664
author	Algora, A. Vitéz-Sveiczer, A. Poves, A. Kiss, G. G. Rubio, B. de Angelis, G. Recchia, F. Nishimura, S. Rodriguez, T. Sarriguren, P. Agramunt, J. Guadilla, V. Montaner-Pizá, A. Morales, A. I. Orrigo, S. E. A. Napoli, D. Lenzi, S. M. Boso, A. Phong, V. H. Wu, J. Söderström, P. -A. Sumikama, T. Suzuki, H. Takeda, H. Ahn, D. S. Baba, H. Doornenbal, P. Fukuda, N. Inabe, N. Isobe, T. Kubo, T. Kubono, S. Sakurai, H. Shimizu, Y. Chen, S. Blank, B. Ascher, P. Gerbaux, M. Goigoux, T. Giovinazzo, J. Grévy, S. Nieto, T. Kurtukián Magron, C. Gelletly, W. Dombrádi, 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. Schaffner, H. Kruppa, A.
author_facet	Algora, A. Vitéz-Sveiczer, A. Poves, A. Kiss, G. G. Rubio, B. de Angelis, G. Recchia, F. Nishimura, S. Rodriguez, T. Sarriguren, P. Agramunt, J. Guadilla, V. Montaner-Pizá, A. Morales, A. I. Orrigo, S. E. A. Napoli, D. Lenzi, S. M. Boso, A. Phong, V. H. Wu, J. Söderström, P. -A. Sumikama, T. Suzuki, H. Takeda, H. Ahn, D. S. Baba, H. Doornenbal, P. Fukuda, N. Inabe, N. Isobe, T. Kubo, T. Kubono, S. Sakurai, H. Shimizu, Y. Chen, S. Blank, B. Ascher, P. Gerbaux, M. Goigoux, T. Giovinazzo, J. Grévy, S. Nieto, T. Kurtukián Magron, C. Gelletly, W. Dombrádi, 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. Schaffner, H. Kruppa, A.
contents	Isospin symmetry is a fundamental concept in nuclear physics. Even though isospin symmetry is partially broken, it holds approximately for most nuclear systems, which makes exceptions very interesting from the nuclear structure perspective. In this framework, it is expected that the spins and parities of the ground states of mirror nuclei should be the same, in particular for the simplest systems where a proton is exchanged with a neutron or vice versa. In this work, we present evidence that this assumption is broken in the mirror pair $^{71}$Br and $^{71}$Kr system. Our conclusions are based on a high-statistics $β$ decay study of $^{71}$Kr and on state-of-the-art shell model calculations. In our work, we also found evidence of a new state in $^{70}$Se, populated in the $β$-delayed proton emission process which can be interpreted as the long sought coexisting 0$^+$ state.
format	Preprint
id	arxiv_https___arxiv_org_abs_2411_00509
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Isospin breaking in the $^{71}$Kr and $^{71}$Br mirror system Algora, A. Vitéz-Sveiczer, A. Poves, A. Kiss, G. G. Rubio, B. de Angelis, G. Recchia, F. Nishimura, S. Rodriguez, T. Sarriguren, P. Agramunt, J. Guadilla, V. Montaner-Pizá, A. Morales, A. I. Orrigo, S. E. A. Napoli, D. Lenzi, S. M. Boso, A. Phong, V. H. Wu, J. Söderström, P. -A. Sumikama, T. Suzuki, H. Takeda, H. Ahn, D. S. Baba, H. Doornenbal, P. Fukuda, N. Inabe, N. Isobe, T. Kubo, T. Kubono, S. Sakurai, H. Shimizu, Y. Chen, S. Blank, B. Ascher, P. Gerbaux, M. Goigoux, T. Giovinazzo, J. Grévy, S. Nieto, T. Kurtukián Magron, C. Gelletly, W. Dombrádi, 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. Schaffner, H. Kruppa, A. Nuclear Experiment Nuclear Theory Isospin symmetry is a fundamental concept in nuclear physics. Even though isospin symmetry is partially broken, it holds approximately for most nuclear systems, which makes exceptions very interesting from the nuclear structure perspective. In this framework, it is expected that the spins and parities of the ground states of mirror nuclei should be the same, in particular for the simplest systems where a proton is exchanged with a neutron or vice versa. In this work, we present evidence that this assumption is broken in the mirror pair $^{71}$Br and $^{71}$Kr system. Our conclusions are based on a high-statistics $β$ decay study of $^{71}$Kr and on state-of-the-art shell model calculations. In our work, we also found evidence of a new state in $^{70}$Se, populated in the $β$-delayed proton emission process which can be interpreted as the long sought coexisting 0$^+$ state.
title	Isospin breaking in the $^{71}$Kr and $^{71}$Br mirror system
topic	Nuclear Experiment Nuclear Theory
url	https://arxiv.org/abs/2411.00509