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1. Publisher Correction: First observation of 28O

Author

Kondo, Y., primary, Achouri, N. L., additional, Falou, H. Al, additional, Atar, L., additional, Aumann, T., additional, Baba, H., additional, Boretzky, K., additional, Caesar, C., additional, Calvet, D., additional, Chae, H., additional, Chiga, N., additional, Corsi, A., additional, Delaunay, F., additional, Delbart, A., additional, Deshayes, Q., additional, Dombrádi, Zs., additional, Douma, C. A., additional, Ekström, A., additional, Elekes, Z., additional, Forssén, C., additional, Gašparić, I., additional, Gheller, J.-M., additional, Gibelin, J., additional, Gillibert, A., additional, Hagen, G., additional, Harakeh, M. N., additional, Hirayama, A., additional, Hoffman, C. R., additional, Holl, M., additional, Horvat, A., additional, Horváth, Á., additional, Hwang, J. W., additional, Isobe, T., additional, Jiang, W. G., additional, Kahlbow, J., additional, Kalantar-Nayestanaki, N., additional, Kawase, S., additional, Kim, S., additional, Kisamori, K., additional, Kobayashi, T., additional, Körper, D., additional, Koyama, S., additional, Kuti, I., additional, Lapoux, V., additional, Lindberg, S., additional, Marqués, F. M., additional, Masuoka, S., additional, Mayer, J., additional, Miki, K., additional, Murakami, T., additional, Najafi, M., additional, Nakamura, T., additional, Nakano, K., additional, Nakatsuka, N., additional, Nilsson, T., additional, Obertelli, A., additional, Ogata, K., additional, de Oliveira Santos, F., additional, Orr, N. A., additional, Otsu, H., additional, Otsuka, T., additional, Ozaki, T., additional, Panin, V., additional, Papenbrock, T., additional, Paschalis, S., additional, Revel, A., additional, Rossi, D., additional, Saito, A. T., additional, Saito, T. Y., additional, Sasano, M., additional, Sato, H., additional, Satou, Y., additional, Scheit, H., additional, Schindler, F., additional, Schrock, P., additional, Shikata, M., additional, Shimizu, N., additional, Shimizu, Y., additional, Simon, H., additional, Sohler, D., additional, Sorlin, O., additional, Stuhl, L., additional, Sun, Z. H., additional, Takeuchi, S., additional, Tanaka, M., additional, Thoennessen, M., additional, Törnqvist, H., additional, Togano, Y., additional, Tomai, T., additional, Tscheuschner, J., additional, Tsubota, J., additional, Tsunoda, N., additional, Uesaka, T., additional, Utsuno, Y., additional, Vernon, I., additional, Wang, H., additional, Yang, Z., additional, Yasuda, M., additional, Yoneda, K., additional, and Yoshida, S., additional

Published
2023
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2. First observation of 28O

Author

Kondo, Y., primary, Achouri, N. L., additional, Falou, H. Al, additional, Atar, L., additional, Aumann, T., additional, Baba, H., additional, Boretzky, K., additional, Caesar, C., additional, Calvet, D., additional, Chae, H., additional, Chiga, N., additional, Corsi, A., additional, Delaunay, F., additional, Delbart, A., additional, Deshayes, Q., additional, Dombrádi, Zs., additional, Douma, C. A., additional, Ekström, A., additional, Elekes, Z., additional, Forssén, C., additional, Gašparić, I., additional, Gheller, J.-M., additional, Gibelin, J., additional, Gillibert, A., additional, Hagen, G., additional, Harakeh, M. N., additional, Hirayama, A., additional, Hoffman, C. R., additional, Holl, M., additional, Horvat, A., additional, Horváth, Á., additional, Hwang, J. W., additional, Isobe, T., additional, Jiang, W. G., additional, Kahlbow, J., additional, Kalantar-Nayestanaki, N., additional, Kawase, S., additional, Kim, S., additional, Kisamori, K., additional, Kobayashi, T., additional, Körper, D., additional, Koyama, S., additional, Kuti, I., additional, Lapoux, V., additional, Lindberg, S., additional, Marqués, F. M., additional, Masuoka, S., additional, Mayer, J., additional, Miki, K., additional, Murakami, T., additional, Najafi, M., additional, Nakamura, T., additional, Nakano, K., additional, Nakatsuka, N., additional, Nilsson, T., additional, Obertelli, A., additional, Ogata, K., additional, de Oliveira Santos, F., additional, Orr, N. A., additional, Otsu, H., additional, Otsuka, T., additional, Ozaki, T., additional, Panin, V., additional, Papenbrock, T., additional, Paschalis, S., additional, Revel, A., additional, Rossi, D., additional, Saito, A. T., additional, Saito, T. Y., additional, Sasano, M., additional, Sato, H., additional, Satou, Y., additional, Scheit, H., additional, Schindler, F., additional, Schrock, P., additional, Shikata, M., additional, Shimizu, N., additional, Shimizu, Y., additional, Simon, H., additional, Sohler, D., additional, Sorlin, O., additional, Stuhl, L., additional, Sun, Z. H., additional, Takeuchi, S., additional, Tanaka, M., additional, Thoennessen, M., additional, Törnqvist, H., additional, Togano, Y., additional, Tomai, T., additional, Tscheuschner, J., additional, Tsubota, J., additional, Tsunoda, N., additional, Uesaka, T., additional, Utsuno, Y., additional, Vernon, I., additional, Wang, H., additional, Yang, Z., additional, Yasuda, M., additional, Yoneda, K., additional, and Yoshida, S., additional

Published
2023
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3. .sup.78Ni revealed as a doubly magic stronghold against nuclear deformation

Author

Taniuchi, R., Santamaria, C., Doornenbal, P., Obertelli, A., Yoneda, K., Authelet, G., and Baba, H.

Subjects
Atomic nuclei -- Research, Nuclear research, Nickel (Metal) -- Atomic properties -- Spectra, Deformation -- Analysis, Magical thinking -- Analysis, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Nuclear magic numbers correspond to fully occupied energy shells of protons or neutrons inside atomic nuclei. Doubly magic nuclei, with magic numbers for both protons and neutrons, are spherical and extremely rare across the nuclear landscape. Although the sequence of magic numbers is well established for stable nuclei, experimental evidence has revealed modifications for nuclei with a large asymmetry between proton and neutron numbers. Here we provide a spectroscopic study of the doubly magic nucleus .sup.78Ni, which contains fourteen neutrons more than the heaviest stable nickel isotope. We provide direct evidence of its doubly magic nature, which is also predicted by ab initio calculations based on chiral effective-field theory interactions and the quasi-particle random-phase approximation. Our results also indicate the breakdown of the neutron magic number 50 and proton magic number 28 beyond this stronghold, caused by a competing deformed structure. State-of-the-art phenomenological shell-model calculations reproduce this shape coexistence, predicting a rapid transition from spherical to deformed ground states, with .sup.78Ni as the turning point. A spectroscopic study of .sup.78Ni confirms its doubly magic nature and reveals it as a stronghold beyond which the magic numbers 28 and 50 break down because of competing deformation., Author(s): R. Taniuchi [sup.1] [sup.2] , C. Santamaria [sup.2] [sup.3] , P. Doornenbal [sup.2] , A. Obertelli [sup.2] [sup.3] [sup.4] , K. Yoneda [sup.2] , G. Authelet [sup.3] , H. [...]

Published
2019
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4. Observation of a correlated free four-neutron system

Author

Duer, M., primary, Aumann, T., additional, Gernhäuser, R., additional, Panin, V., additional, Paschalis, S., additional, Rossi, D. M., additional, Achouri, N. L., additional, Ahn, D., additional, Baba, H., additional, Bertulani, C. A., additional, Böhmer, M., additional, Boretzky, K., additional, Caesar, C., additional, Chiga, N., additional, Corsi, A., additional, Cortina-Gil, D., additional, Douma, C. A., additional, Dufter, F., additional, Elekes, Z., additional, Feng, J., additional, Fernández-Domínguez, B., additional, Forsberg, U., additional, Fukuda, N., additional, Gasparic, I., additional, Ge, Z., additional, Gheller, J. M., additional, Gibelin, J., additional, Gillibert, A., additional, Hahn, K. I., additional, Halász, Z., additional, Harakeh, M. N., additional, Hirayama, A., additional, Holl, M., additional, Inabe, N., additional, Isobe, T., additional, Kahlbow, J., additional, Kalantar-Nayestanaki, N., additional, Kim, D., additional, Kim, S., additional, Kobayashi, T., additional, Kondo, Y., additional, Körper, D., additional, Koseoglou, P., additional, Kubota, Y., additional, Kuti, I., additional, Li, P. J., additional, Lehr, C., additional, Lindberg, S., additional, Liu, Y., additional, Marqués, F. M., additional, Masuoka, S., additional, Matsumoto, M., additional, Mayer, J., additional, Miki, K., additional, Monteagudo, B., additional, Nakamura, T., additional, Nilsson, T., additional, Obertelli, A., additional, Orr, N. A., additional, Otsu, H., additional, Park, S. Y., additional, Parlog, M., additional, Potlog, P. M., additional, Reichert, S., additional, Revel, A., additional, Saito, A. T., additional, Sasano, M., additional, Scheit, H., additional, Schindler, F., additional, Shimoura, S., additional, Simon, H., additional, Stuhl, L., additional, Suzuki, H., additional, Symochko, D., additional, Takeda, H., additional, Tanaka, J., additional, Togano, Y., additional, Tomai, T., additional, Törnqvist, H. T., additional, Tscheuschner, J., additional, Uesaka, T., additional, Wagner, V., additional, Yamada, H., additional, Yang, B., additional, Yang, L., additional, Yang, Z. H., additional, Yasuda, M., additional, Yoneda, K., additional, Zanetti, L., additional, Zenihiro, J., additional, and Zhukov, M. V., additional

Published
2022
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5. 78Ni revealed as a doubly magic stronghold against nuclear deformation

Author

Taniuchi, R., primary, Santamaria, C., additional, Doornenbal, P., additional, Obertelli, A., additional, Yoneda, K., additional, Authelet, G., additional, Baba, H., additional, Calvet, D., additional, Château, F., additional, Corsi, A., additional, Delbart, A., additional, Gheller, J.-M., additional, Gillibert, A., additional, Holt, J. D., additional, Isobe, T., additional, Lapoux, V., additional, Matsushita, M., additional, Menéndez, J., additional, Momiyama, S., additional, Motobayashi, T., additional, Niikura, M., additional, Nowacki, F., additional, Ogata, K., additional, Otsu, H., additional, Otsuka, T., additional, Péron, C., additional, Péru, S., additional, Peyaud, A., additional, Pollacco, E. C., additional, Poves, A., additional, Roussé, J.-Y., additional, Sakurai, H., additional, Schwenk, A., additional, Shiga, Y., additional, Simonis, J., additional, Stroberg, S. R., additional, Takeuchi, S., additional, Tsunoda, Y., additional, Uesaka, T., additional, Wang, H., additional, Browne, F., additional, Chung, L. X., additional, Dombradi, Z., additional, Franchoo, S., additional, Giacoppo, F., additional, Gottardo, A., additional, Hadyńska-Klęk, K., additional, Korkulu, Z., additional, Koyama, S., additional, Kubota, Y., additional, Lee, J., additional, Lettmann, M., additional, Louchart, C., additional, Lozeva, R., additional, Matsui, K., additional, Miyazaki, T., additional, Nishimura, S., additional, Olivier, L., additional, Ota, S., additional, Patel, Z., additional, Şahin, E., additional, Shand, C., additional, Söderström, P.-A., additional, Stefan, I., additional, Steppenbeck, D., additional, Sumikama, T., additional, Suzuki, D., additional, Vajta, Z., additional, Werner, V., additional, Wu, J., additional, and Xu, Z. Y., additional

Published
2019
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6. 78 Ni revealed as a doubly magic stronghold against nuclear deformation.

Author

Taniuchi R, Santamaria C, Doornenbal P, Obertelli A, Yoneda K, Authelet G, Baba H, Calvet D, Château F, Corsi A, Delbart A, Gheller JM, Gillibert A, Holt JD, Isobe T, Lapoux V, Matsushita M, Menéndez J, Momiyama S, Motobayashi T, Niikura M, Nowacki F, Ogata K, Otsu H, Otsuka T, Péron C, Péru S, Peyaud A, Pollacco EC, Poves A, Roussé JY, Sakurai H, Schwenk A, Shiga Y, Simonis J, Stroberg SR, Takeuchi S, Tsunoda Y, Uesaka T, Wang H, Browne F, Chung LX, Dombradi Z, Franchoo S, Giacoppo F, Gottardo A, Hadyńska-Klęk K, Korkulu Z, Koyama S, Kubota Y, Lee J, Lettmann M, Louchart C, Lozeva R, Matsui K, Miyazaki T, Nishimura S, Olivier L, Ota S, Patel Z, Şahin E, Shand C, Söderström PA, Stefan I, Steppenbeck D, Sumikama T, Suzuki D, Vajta Z, Werner V, Wu J, and Xu ZY

Abstract

Nuclear magic numbers correspond to fully occupied energy shells of protons or neutrons inside atomic nuclei. Doubly magic nuclei, with magic numbers for both protons and neutrons, are spherical and extremely rare across the nuclear landscape. Although the sequence of magic numbers is well established for stable nuclei, experimental evidence has revealed modifications for nuclei with a large asymmetry between proton and neutron numbers. Here we provide a spectroscopic study of the doubly magic nucleus 78 Ni, which contains fourteen neutrons more than the heaviest stable nickel isotope. We provide direct evidence of its doubly magic nature, which is also predicted by ab initio calculations based on chiral effective-field theory interactions and the quasi-particle random-phase approximation. Our results also indicate the breakdown of the neutron magic number 50 and proton magic number 28 beyond this stronghold, caused by a competing deformed structure. State-of-the-art phenomenological shell-model calculations reproduce this shape coexistence, predicting a rapid transition from spherical to deformed ground states, with 78 Ni as the turning point.

Published
2019
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