Buchumschlag

The 76Cu conundrum remains unsolved

Fuente: arXiv

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Olaizola, B., Illana, A., Benito, J., Suárez-Bustamante, D. P., Del Piccolo, G., Algora, A., Andel, B., Andreyev, A. N., Araszkiewicz, M., Ayyad, Y., Bark, R. A., Berry, T., Borge, M. J. G., Chrysalidis, K., Cocolios, T. E., Costache, C., Cubiss, J. G., Van Duppen, P., Favier, Z., Fraile, L. M., Fynbo, H. O. U., Galtarossa, F., Georgiev, G., Greenless, P. T., Grzywacz, R., Harkness-Brennan, L. J., Heinke, R., Huyse, M., Ibañez, P., Johnston, K., Jones, P. M., Judson, D. S., Konki, J., Korgul, A., Köster, U., Kurcewicz, J., Labiche, M., Lazarus, I., Lică, R., Llanos-Expósito, M., Madurga, M., Marginean, N., Marginean, R., Marsh, B. A., Mihai, C., Mihai, R. E., Murias, J. R., Nácher, E., Neacsu, C., Negret, A., Nouvilas, V. M., Ojala, J., Orce, J. N., Page, C. A. A., Page, R. D., Pakarinen, J., Papadakis, J., Pascu, S., Perea, A., Piersa-Siłkowska, M., Plaza, A. M., Podolyák, Zs., Poklepa, W., Pucknell, V., Rahkila, P., Raison, C., Rapisarda, E., Rezynkina, K., Rotaru, F., Schomacker, K., Siciliano, M., Sotty, C., Stryjczyk, M., Tengblad, O., Udías, J. M., Vedia, V., Viñals, S., Wadsworth, R., Warr, N., De Witte, H., Yates, D., Yue, Z., collaboration, the IDS
Format:	Preprint
Veröffentlicht:	2025
Schlagworte:	Nuclear Experiment
Online-Zugang:	Acceder al recurso
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

_version_	1866909606331023360
author	Olaizola, B. Illana, A. Benito, J. Suárez-Bustamante, D. P. Del Piccolo, G. Algora, A. Andel, B. Andreyev, A. N. Araszkiewicz, M. Ayyad, Y. Bark, R. A. Berry, T. Borge, M. J. G. Chrysalidis, K. Cocolios, T. E. Costache, C. Cubiss, J. G. Van Duppen, P. Favier, Z. Fraile, L. M. Fynbo, H. O. U. Galtarossa, F. Georgiev, G. Greenless, P. T. Grzywacz, R. Harkness-Brennan, L. J. Heinke, R. Huyse, M. Ibañez, P. Johnston, K. Jones, P. M. Judson, D. S. Konki, J. Korgul, A. Köster, U. Kurcewicz, J. Labiche, M. Lazarus, I. Lică, R. Llanos-Expósito, M. Madurga, M. Marginean, N. Marginean, R. Marsh, B. A. Mihai, C. Mihai, R. E. Murias, J. R. Nácher, E. Neacsu, C. Negret, A. Nouvilas, V. M. Ojala, J. Orce, J. N. Page, C. A. A. Page, R. D. Pakarinen, J. Papadakis, J. Pascu, S. Perea, A. Piersa-Siłkowska, M. Plaza, A. M. Podolyák, Zs. Poklepa, W. Pucknell, V. Rahkila, P. Raison, C. Rapisarda, E. Rezynkina, K. Rotaru, F. Schomacker, K. Siciliano, M. Sotty, C. Stryjczyk, M. Tengblad, O. Udías, J. M. Vedia, V. Viñals, S. Wadsworth, R. Warr, N. De Witte, H. Yates, D. Yue, Z. collaboration, the IDS
author_facet	Olaizola, B. Illana, A. Benito, J. Suárez-Bustamante, D. P. Del Piccolo, G. Algora, A. Andel, B. Andreyev, A. N. Araszkiewicz, M. Ayyad, Y. Bark, R. A. Berry, T. Borge, M. J. G. Chrysalidis, K. Cocolios, T. E. Costache, C. Cubiss, J. G. Van Duppen, P. Favier, Z. Fraile, L. M. Fynbo, H. O. U. Galtarossa, F. Georgiev, G. Greenless, P. T. Grzywacz, R. Harkness-Brennan, L. J. Heinke, R. Huyse, M. Ibañez, P. Johnston, K. Jones, P. M. Judson, D. S. Konki, J. Korgul, A. Köster, U. Kurcewicz, J. Labiche, M. Lazarus, I. Lică, R. Llanos-Expósito, M. Madurga, M. Marginean, N. Marginean, R. Marsh, B. A. Mihai, C. Mihai, R. E. Murias, J. R. Nácher, E. Neacsu, C. Negret, A. Nouvilas, V. M. Ojala, J. Orce, J. N. Page, C. A. A. Page, R. D. Pakarinen, J. Papadakis, J. Pascu, S. Perea, A. Piersa-Siłkowska, M. Plaza, A. M. Podolyák, Zs. Poklepa, W. Pucknell, V. Rahkila, P. Raison, C. Rapisarda, E. Rezynkina, K. Rotaru, F. Schomacker, K. Siciliano, M. Sotty, C. Stryjczyk, M. Tengblad, O. Udías, J. M. Vedia, V. Viñals, S. Wadsworth, R. Warr, N. De Witte, H. Yates, D. Yue, Z. collaboration, the IDS
contents	Near the doubly-magic nucleus \nuc{Ni}{78} ($Z=28$, $N=50$), there has been a decades-long debate on the existence of a long-lived isomer in \nuc{Cu}{76}. A recent mass measurement claimed to have settled the debate, by measuring the energy of the isomer and shedding light on the structure of the nucleus. In this work, we present new, more accurate, and precise values of the half-lives of the isomeric and ground states in \nuc{Cu}{76}. Our findings suggest that both states have very similar half-lives, in the 600-700 ms range, in disagreement with the literature values, implying that they cannot be differentiated by their decay curves. These results raise more questions than they answer, reopening the debate and showing that the structures in \nuc{Cu}{76} are still not fully understood.
format	Preprint
id	arxiv_https___arxiv_org_abs_2505_06400
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	The 76Cu conundrum remains unsolved Olaizola, B. Illana, A. Benito, J. Suárez-Bustamante, D. P. Del Piccolo, G. Algora, A. Andel, B. Andreyev, A. N. Araszkiewicz, M. Ayyad, Y. Bark, R. A. Berry, T. Borge, M. J. G. Chrysalidis, K. Cocolios, T. E. Costache, C. Cubiss, J. G. Van Duppen, P. Favier, Z. Fraile, L. M. Fynbo, H. O. U. Galtarossa, F. Georgiev, G. Greenless, P. T. Grzywacz, R. Harkness-Brennan, L. J. Heinke, R. Huyse, M. Ibañez, P. Johnston, K. Jones, P. M. Judson, D. S. Konki, J. Korgul, A. Köster, U. Kurcewicz, J. Labiche, M. Lazarus, I. Lică, R. Llanos-Expósito, M. Madurga, M. Marginean, N. Marginean, R. Marsh, B. A. Mihai, C. Mihai, R. E. Murias, J. R. Nácher, E. Neacsu, C. Negret, A. Nouvilas, V. M. Ojala, J. Orce, J. N. Page, C. A. A. Page, R. D. Pakarinen, J. Papadakis, J. Pascu, S. Perea, A. Piersa-Siłkowska, M. Plaza, A. M. Podolyák, Zs. Poklepa, W. Pucknell, V. Rahkila, P. Raison, C. Rapisarda, E. Rezynkina, K. Rotaru, F. Schomacker, K. Siciliano, M. Sotty, C. Stryjczyk, M. Tengblad, O. Udías, J. M. Vedia, V. Viñals, S. Wadsworth, R. Warr, N. De Witte, H. Yates, D. Yue, Z. collaboration, the IDS Nuclear Experiment Near the doubly-magic nucleus \nuc{Ni}{78} ($Z=28$, $N=50$), there has been a decades-long debate on the existence of a long-lived isomer in \nuc{Cu}{76}. A recent mass measurement claimed to have settled the debate, by measuring the energy of the isomer and shedding light on the structure of the nucleus. In this work, we present new, more accurate, and precise values of the half-lives of the isomeric and ground states in \nuc{Cu}{76}. Our findings suggest that both states have very similar half-lives, in the 600-700 ms range, in disagreement with the literature values, implying that they cannot be differentiated by their decay curves. These results raise more questions than they answer, reopening the debate and showing that the structures in \nuc{Cu}{76} are still not fully understood.
title	The 76Cu conundrum remains unsolved
topic	Nuclear Experiment
url	https://arxiv.org/abs/2505.06400