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582 results on '"Kameda, D"'

101. Proton Shell Evolution below Sn 132: First Measurement of Low-Lying β -Emitting Isomers in Ag 123,125

Author

Chen, Z. Q., Li, Z.H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K.Y., Crespi, F.C.L., Doornenbal, P., Fukuda, N., Gey, G., Gernhäuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, Andrea, Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F.G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G.J., Li, C. G., Luo, D. W., Montaner-Pizá, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyák, Z., Sumikama, T., Söderström, P.A., Sakurai, H., Taprogge, J., RIKEN Nishina Center for Accelerator-Based Science, University of Tokyo, Ministry of Science and Technology (South Korea), National Research Foundation of Korea, National Natural Science Foundation of China, Ministerio de Ciencia, Innovación y Universidades (España), Japan Society for the Promotion of Science, and Department of Energy (US)

Abstract

6 pags., 5 figs., The β-delayed γ-ray spectroscopy of neutron-rich Ag123,125 isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2- β-emitting isomers in Ag123,125 are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2+ and 1/2- levels is extended in Ag isotopes up to N=78, providing a clear signal for the reduction of the Z=40 subshell gap in Ag towards N=82. Shell-model calculations with the state-of-the-art VMU plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in Ag123,125. The tensor force is found to play a crucial role in the evolution of the size of the Z=40 subshell gap. The observed inversion of the single-particle levels around Ag123 can be well interpreted in terms of the monopole shift of the π1g9/2 orbitals mainly caused by the increasing occupation of ν1h11/2 orbitals., This work was carried out at the RIBF operated by RIKEN Nishina Center, RIKEN and CNS, University of Tokyo. Part of the WAS3ABi was supported by the Rare Isotope Science Project which is funded by MSIP and NRF of Korea. This work was supported by the National Key R&D Program of China (Contract No. 2018YFA0404403), the Natural Science Foundation of China under Grants No. 11775003, No. 11675003, No. 11775316, and No. 11875075, the National Research Foundation of Korea (No. NRF-2016R1A5A1013277 and No. NRF-2013M7A1A1075764), and the Spanish Ministerio de Economía y Competitividad under Contract No. FPA2017-84756-C4-2-P. This work was partially supported by JSPS KAKENHI (Grants No. 25247045 and No. 17H06090). Work at ANL is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357.

Published
2019

102. Measurements of interaction cross sections for 22–35Na isotopes

Author

Suzuki S., Takechi M., Ohtsubo T., Nishimura D., Fukuda M., Kuboki T., Nagashima M., Suzuki T., Yamaguchi T., Ozawa A., Ohishi H., Moriguchi T., Sumikama T., Geissel H., Aoi N., Chen Rui-Jiu, Fang De-Qing, Fukuda N., Fukuoka S., Furuki H., Inabe N., Ishibashi Y., Ito T., Izumikawa T., Kameda D., Kubo T., Lantz M., Lee C.S., Ma Yu-Gang, Mihara M., Momota S., Nagae D., Nishikiori R., Niwa T., Ohnishi T., Okumura K., Ogura T., Sakurai H., Sato K., Shimbara Y., Suzuki H., Takeda H., Takeuchi S., Tanaka K., Uenishi H., Winkler M., and Yanagisawa Y.

Subjects
Physics, QC1-999
Abstract

Interaction cross sections (σI) for 22−35Na isotopes from the stability line to the vicinity of the neutron drip line have been measured at around 240 MeV/nucleon. The σI for 33−35Na were measured for the first time. Enhancement in cross sections is clearly observed from the systematics for stable nuclei, for isotopes with large mass numbers. From the known values of the nuclear-deformation parameters β2 of 22−31Na, these enhancement can be mainly ascribed to the nuclear deformation. Large enhancement in heavier isotopes suggest that these nuclei are strongly deformed. The root-mean-square (RMS) nuclear matter radii were deduced from the σI by using Glauber-type calculation. Furthermore, a monotonic growth of the neutron-skin thickness has been deduced with increasing neutron number for Na isotopes.

Published
2014
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103. Search for halo nucleus in Mg isotopes through the measurements of reaction cross sections towards the vicinity of neutron drip line

Author

Takechi M., Suzuki S., Nishimura D., Fukuda M., Ohtsubo T., Nagashima M., Suzuki T., Yamaguchi T., Ozawa A., Moriguchi T., Ohishi H., Sumikama T., Geissel H., Ishihara M., Aoi N., Chen Rui-Jiu, Fang De-Qing, Fukuda N., Fukuoka S., Furuki H., Inabe N., Ishibashi Y., Itoh T., Izumikawa T., Kameda D., Kubo T., Lee C. S., Lantz M., Ma Yu-Gang, Matsuta K., Mihara M., Momota S., Nagae D., Nishikiori R., Niwa T., Ohnishi T., Okumura K., Ogura T., Sakurai H., Sato K., Shimbara Y., Suzuki H., Takeda H., Takeuchi S., Tanaka K., Uenishi H., Winkler M., Yanagisawa Y., Watanabe S., Minomo K., Tagami S., Shimada M., Kimura M., Matsumoto T., Shimizu Y. R., and Yahiro M.

Subjects
Physics, QC1-999
Abstract

Reaction cross sections (σR) for 24–38Mg on C targets at the energies of around 240 MeV/nucleon have been measured precisely at RIBF, RIKEN for the purpose of obtaining the crucial information on the changes of nuclear structure in unstable nuclei, especially around the so-called “island of inversion” region. In the island of inversion region, which includes neutron-rich Ne, Na, and Mg isotopes, the vanishing of the N = 20 magic number for neutrons have been discussed along with nuclear deformation. The present result suggest deformation features of Mg isotopes and shows a large cross section of weakly-bound nucleus 37Mg, which could be caused by a neutron halo formation.

Published
2014
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104. Isomer and beta decay spectroscopy in the 132Sn region with EURICA

Author

Jungclaus A., Simpson G.S., Gey G., Taprogge J., Nishimura S., Doornenbal P., Lorusso G., Söderström P.-A., Sumikama T., Xu Z., Baba H., Browne F., Fukuda N., Inabe N., Isobe T., Jung H.S., Kameda D., Kim G.D., Kim Y.-K., Kojouharov I., Kubo T., Kurz N., Kwon Y.K., Li Z., Sakurai H., Schaffner H., Suzuki H., Takeda H., Vajta Z., Watanabe H., Wu J., Yagi A., Yoshinaga K., Bönig S., Daugas J.-M., Drouet F., Gernhäuser R., Ilieva S., Kröll T., Montaner-Pizá A., Moschner K., Mücher D., Nishibata H., Orlandi R., Steiger K., and Wendt A.

Subjects
Physics, QC1-999
Abstract

The first EURICA campaign with high intensity Uranium beams took place at RIKEN in November/December 2012. Within this campaign experiment NP1112-RIBF85 was performed dedicated to the study of the isomeric and beta decays of neutronrich Cd, In, Sn and Sb isotopes towards and beyond the N=82 neutron shell closure. In this contribution we present a first status report of the analysis of the extensive data set obtained in this experiment.

Published
2014
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108. New and comprehensive β - and βp-decay spectroscopy results in the vicinity of Sn100

Author

Park, J., Krucken, Reiner, Lubos, D., Gernhäuser, Roman, Lewitowicz, Marek, Nishimura, S., Ahn, Deuk Soon, Baba, Hidetada, Blank, Bertram B., Blazhev, A., Boutachkov, P, Browne, F, Čeliković, Igor T., de France, G., Doornenbal, P, Faestermann, T, Fang, Y, Fukuda, N, Giovinazzo, J, Goel, N, Górska, M, Grawe, H, Ilieva, S, Inabe, N, Isobe, T, Jungclaus, A, Kameda, D, Kim, G. D., Kim, Y.-K., Kojouharov, I, Kubo, T, Kurz, N, Kwon, Y K, Lorusso, G, Moschner, K, Murai, D, Nishizuka, I, Patel, Z, Rajabali, M M, Rice, S, Sakurai, H, Schaffner, H, Shimizu, Y, Sinclair, L, Söderström, P.-A., Steiger, K, Sumikama, T, Suzuki, H, Takeda, H, Wang, Z, Watanabe, H, Wu, J, Xu, Z Y, Park, J., Krucken, Reiner, Lubos, D., Gernhäuser, Roman, Lewitowicz, Marek, Nishimura, S., Ahn, Deuk Soon, Baba, Hidetada, Blank, Bertram B., Blazhev, A., Boutachkov, P, Browne, F, Čeliković, Igor T., de France, G., Doornenbal, P, Faestermann, T, Fang, Y, Fukuda, N, Giovinazzo, J, Goel, N, Górska, M, Grawe, H, Ilieva, S, Inabe, N, Isobe, T, Jungclaus, A, Kameda, D, Kim, G. D., Kim, Y.-K., Kojouharov, I, Kubo, T, Kurz, N, Kwon, Y K, Lorusso, G, Moschner, K, Murai, D, Nishizuka, I, Patel, Z, Rajabali, M M, Rice, S, Sakurai, H, Schaffner, H, Shimizu, Y, Sinclair, L, Söderström, P.-A., Steiger, K, Sumikama, T, Suzuki, H, Takeda, H, Wang, Z, Watanabe, H, Wu, J, and Xu, Z Y

Abstract

A decay spectroscopy experiment on proton-rich nuclei in the vicinity of the doubly magic Sn100 was carried out at RIKEN Nishina Center. More than 20 nuclei with 43≤Z≤50 and N≤51, produced by fragmentation reactions were investigated via analyses of β-decay, βp-decay, and subsequent γ-ray data. Owing to higher statistics, the precision on the half-lives of many of the ground states and isomers was improved. β-decay endpoint energies of 11 states in 8 nuclei were measured for the first time, and the corresponding QEC and excitation energies were generally consistent with various mass models. Many β-delayed proton emission branching ratios were measured either for the first time or with higher precision compared to literature values, and some of them differed by more than 2σ. Many of the large discrepancies were associated with nuclei with long-lived isomeric states, highlighting large systematic uncertainties involved in these measurements. Twenty-five new γ rays were observed, and ten new states are proposed with unambiguous excitation energies, spins, and parities. Most of the energies of the excited states were consistent within 300 keV or 20%, whichever was greater, compared to shell model predictions in the proton/neutron (p1/2,g9/2) model space assuming a Sr76 core. A signature of a new (1/2-) isomer in Cd97 with T1/2=0.73(7) s was found, in good agreement with shell model predictions. © 2019 American Physical Society.

Published
2019

109. Toward the limit of nuclear binding on the N = Z line : Spectroscopy of Cd-96

Author

Davies, P. J., Park, J., Grawe, H., Wadsworth, R., Gernhauser, R., Krucken, R., Nowacki, F., Ahn, D. S., Ameil, F., Baba, H., Bäck, T., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I, Dewald, M., Doornenbal, P., Faestermann, T., Fang, Y., de France, G., Fukuda, N., Gengelbach, Aila, Gerl, J., Giovinazzo, J., Go, S., Goel, N., Gorska, M., Gregor, E., Hotaka, H., Ilieva, S., Inabe, N., Isobe, T., Jenkins, D. G., Jolie, J., Jung, H. S., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y-K, Kojouharov, I, Kubo, T., Kurz, N., Lewitowicz, M., Lorusso, G., Lubos, D., Maier, L., Merchan, E., Moschner, K., Murai, D., Naqvi, F., Nishibata, H., Nishimura, D., Nishimura, S., Nishizuka, I, Patel, Z., Pietralla, N., Rajabali, M. M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L. F., Soederstroem, P-A, Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Taprogge, J., Thöle, P., Valder, S., Wang, Z., Warr, N., Watanabe, H., Werner, V, Wu, J., Xu, Z. Y., Yagi, A., Yoshinaga, K., Zhu, Y., Davies, P. J., Park, J., Grawe, H., Wadsworth, R., Gernhauser, R., Krucken, R., Nowacki, F., Ahn, D. S., Ameil, F., Baba, H., Bäck, T., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I, Dewald, M., Doornenbal, P., Faestermann, T., Fang, Y., de France, G., Fukuda, N., Gengelbach, Aila, Gerl, J., Giovinazzo, J., Go, S., Goel, N., Gorska, M., Gregor, E., Hotaka, H., Ilieva, S., Inabe, N., Isobe, T., Jenkins, D. G., Jolie, J., Jung, H. S., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y-K, Kojouharov, I, Kubo, T., Kurz, N., Lewitowicz, M., Lorusso, G., Lubos, D., Maier, L., Merchan, E., Moschner, K., Murai, D., Naqvi, F., Nishibata, H., Nishimura, D., Nishimura, S., Nishizuka, I, Patel, Z., Pietralla, N., Rajabali, M. M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L. F., Soederstroem, P-A, Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Taprogge, J., Thöle, P., Valder, S., Wang, Z., Warr, N., Watanabe, H., Werner, V, Wu, J., Xu, Z. Y., Yagi, A., Yoshinaga, K., and Zhu, Y.

Abstract

A gamma -decaying isomeric state (tau(1/2) = 197(-17)(+19) ns) has been identified in Cd-96, which is one alpha particle away from the last known bound N = Z nucleus, Sn-100. Comparison of the results with shell-model calculations has allowed a tentative experimental level scheme to be deduced and the isomer to be interpreted as a medium-spin negative-parity spin trap based on the coupling of isoscalar (T = 0) and isovector (T = 1) neutron-proton pairs. The data also suggest evidence for the population of a 9(+) T = 1 state, which is predicted by shell-model calculations to be yrast. Such a low-lying T = 1 state, which is unknown in lighter mass even-even self-conjugate nuclei, can also be interpreted in terms of the coupling of T = 0 and T = 1 neutron-proton pairs.

Published
2019
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110. New and comprehensive beta- and beta p-decay spectroscopy results in the vicinity of Sn-100

Author

Park, J., Krucken, R., Lubos, D., Gernhaeuser, R., Lewitowicz, M., Nishimura, S., Ahn, D. S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I, de France, G., Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Gorska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y-K, Kojouharov, I, Kubo, T., Kurz, N., Kwon, Y. K., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I, Pate, Z., Rajabali, M. M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Soderstrom, P-A, Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., Xu, Z. Y., Park, J., Krucken, R., Lubos, D., Gernhaeuser, R., Lewitowicz, M., Nishimura, S., Ahn, D. S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I, de France, G., Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Gorska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y-K, Kojouharov, I, Kubo, T., Kurz, N., Kwon, Y. K., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I, Pate, Z., Rajabali, M. M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Soderstrom, P-A, Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., and Xu, Z. Y.

Abstract

A decay spectroscopy experiment on proton-rich nuclei in the vicinity of the doubly magic Sn-100 was carried out at RIKEN Nishina Center. More than 20 nuclei with 43 <= Z <= 50 and N <= 51, produced by fragmentation reactions were investigated via analyses of beta-decay, beta p-decay, and subsequent gamma-ray data. Owing to higher statistics, the precision on the half-lives of many of the ground states and isomers was improved. beta-decay endpoint energies of 11 states in 8 nuclei were measured for the first time, and the corresponding Q(EC) and excitation energies were generally consistent with various mass models. Many beta-delayed proton emission branching ratios were measured either for the first time or with higher precision compared to literature values, and some of them differed by more than 2 sigma. Many of the large discrepancies were associated with nuclei with long-lived isomeric states, highlighting large systematic uncertainties involved in these measurements. Twenty-five new gamma rays were observed, and ten new states are proposed with unambiguous excitation energies, spins, and parities. Most of the energies of the excited states were consistent within 300 keV or 20%, whichever was greater, compared to shell model predictions in the proton/neutron (P-1/2, g(9/2)) model space assuming a Sr-76 core. A signature of a new (1/2(-)) isomer in Cd-97 with T-1/2 = 0.73(7) s was found, in good agreement with shell model predictions.

Published
2019

111. New isomers in Pd-125(79) and Pd-127(81): Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

Author

Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., Yoshinaga, K., Watanabe, H., Wang, H. K., Lorusso, G., Nishimura, S., Xu, Z. Y., Sumikama, T., Soderstrom, P. -A., Doornenbal, P., Browne, F., Gey, G., Jung, H. S., Taprogge, J., Vajta, Zs., Wu, J., Yagi, A., Baba, H., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Fukuda, N., Gernhauser, R., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Lane, G. J., Lin, Z., Moon, C. -B., Montaner-Piza, A., Moschner, K., Naqvi, F., Niikura, M., Nishibata, H., Nishimura, D., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Sun, Y., Suzuki, H., Takeda, H., Wendt, A., and Yoshinaga, K.

Abstract

The neutron-rich isotopes of palladium have attracted considerable interest in terms of the evolution of the N = 82 neutron shell closure and its influence on the r-process nucleosynthesis. In this Letter, we present the first spectroscopic information on the excited states in Pd-125(79) and Pd-127(81) studied using the EURICA gamma-ray spectrometer, following production via in-flight fission of a high-intensity U-238 beam at the RIBF facility. New isomeric states with half-lives of 144(4) ns and 39(6) mu s have been assigned spins and parities of (23/2(+)) and (19/2(+)) in Pd-125 and Pd-127, respectively. The observed level properties are compared to a shell-model calculation, suggesting the competition between proton excitations and neutron excitations in the proton-hole and neutron-hole systems in the vicinity of the doubly magic nucleus Sn-132. (C) 2019 The Author(s). Published by Elsevier B.V.

Published
2019

112. Proton Shell Evolution below Sn-132: First Measurement of Low-Lying beta-Emitting Isomers in Ag-123,Ag-325

Author

Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., Yoshinaga, K., Chen, Z. Q., Li, Z. H., Hua, H., Watanabe, H., Yuan, C. X., Zhang, S. Q., Lorusso, G., Nishimura, S., Baba, H., Browne, F., Benzoni, G., Chae, K. Y., Crespi, F. C. L., Doornenbal, P., Fukuda, N., Gey, G., Gernhaeuser, R., Inabe, N., Isobe, T., Jiang, D. X., Jungclaus, A., Jung, H. S., Jin, Y., Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kondev, F. G., Kubo, T., Kurz, N., Kwon, Y. K., Li, X. Q., Lou, J. L., Lane, G. J., Li, C. G., Luo, D. W., Montaner-Piza, A., Moschner, K., Niu, C. Y., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyak, Zs., Sumikama, T., Soderstrom, P. -A., Sakurai, H., Schaffner, H., Simpson, G. S., Steiger, K., Suzuki, H., Taprogge, J., Takeda, H., Vajta, Zs., Wang, H. K., Wu, J., Wendt, A., Wang, C. G., Wu, H. Y., Wang, X., Wu, C. G., Xu, C., Xu, Z. Y., Yagi, A., Ye, Y. L., and Yoshinaga, K.

Abstract

The beta-delayed gamma-ray spectroscopy of neutron-rich Ag-123,Ag-325 isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2(-) beta-emitting isomers in Ag-123,Ag-325 are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2(+) and 1/2(-) levels is extended in Ag isotopes up to N = 78, providing a clear signal for the reduction of the Z = 40 subshell gap in Ag towards N = 82. Shell-model calculations with the state-of-the-art V-MU plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in Ag-123,Ag-325. The tensor force is found to play a crucial role in the evolution of the size of the Z = 40 subshell gap. The observed inversion of the single-particle levels around Ag-123 can be well interpreted in terms of the monopole shift of the pi 1g(9/2) orbitals mainly caused by the increasing occupation of nu 1h(11/2) orbitals.

Published
2019

113. Charge-changing cross sections of ^<30>Ne, ^<32,33>Na with a proton target

Author

Ozawa, A., Moriguchi, T., Ohtsubo, T., Aoi, N., Fang, D. Q., Fukuda, N., Fukuda, M., Geissel, H., Hachiuma, I., Inabe, N., Ishibashi, Y., Ishimoto, S., Ito, Y., Izumikawa, T., Kameda, D., Kubo, T., Kuboki, T., Kusaka, K., Lantz, M., Ma, Y. G., Mihara, M., Miyashita, Y., Momota, S., Nagae, D., Namihira, K., Nishimura, D., Ooishi, H., Ohkuma, Y., Ohnishi, T., Ohtake, M., Ogawa, K., Shimbara, Y., Suda, T., Sumikama, T., Suzuki, H., Suzuki, S., Suzuki, T., Takechi, M., Takeda, H., Tanaka, K., Watanabe, R., Winkler, M., Yamaguchi, T., Yanagisawa, Y., Yasuda, Y., Yoshinaga, K., Yoshida, A., Yoshida, K., Ozawa, A., Moriguchi, T., Ohtsubo, T., Aoi, N., Fang, D. Q., Fukuda, N., Fukuda, M., Geissel, H., Hachiuma, I., Inabe, N., Ishibashi, Y., Ishimoto, S., Ito, Y., Izumikawa, T., Kameda, D., Kubo, T., Kuboki, T., Kusaka, K., Lantz, M., Ma, Y. G., Mihara, M., Miyashita, Y., Momota, S., Nagae, D., Namihira, K., Nishimura, D., Ooishi, H., Ohkuma, Y., Ohnishi, T., Ohtake, M., Ogawa, K., Shimbara, Y., Suda, T., Sumikama, T., Suzuki, H., Suzuki, S., Suzuki, T., Takechi, M., Takeda, H., Tanaka, K., Watanabe, R., Winkler, M., Yamaguchi, T., Yanagisawa, Y., Yasuda, Y., Yoshinaga, K., Yoshida, A., and Yoshida, K.

Abstract

The total charge-changing, charge pick-up, and partial charge-changing cross sections of very neutron-rich nuclei (^<30>Ne, ^<32,33>Na) with a proton target have been measured at ∼240A MeV for the first time. We introduced the phenomenological correction factor in Glauber-model calculations for the total charge-changing cross sections with the proton target, and applied it to deduce the proton radii of these nuclei. For ^<30>Ne and ^<32>Na, the neutron skin thicknesses of the nuclei were deduced by comparing the proton radii with the matter radii deduced from the interaction cross-section measurements. A significant thick neutron-skin has been observed for the nuclei. We also found that the charge pick-up cross sections are much larger than those in the systematics of stable nuclei.

Published
2019

114. How different is the core of $^{25}$F from $^{24}$O$_{g.s.}$?

Author

Tang, T.L., Uesaka, T., Kawase, S., Beaumel, D., Dozono, M., Fujii, T., Fukuda, N., Fukunaga, T., Galindo-Uribarri, A., Hwang, S.H., Inabe, N., Kameda, D., Kawahara, T., Kim, W., Kisamori, K., Kobayashi, M., Kubo, T., Kubota, Y., Kusaka, K., Lee, C.S., Maeda, Y., Matsubara, H., Michimasa, S., Miya, H., Noro, T., Obertelli, A., Ogata, K., Ota, S., Padilla-Rodal, E., Sakaguchi, S., Sakai, H., Sasano, M., Shimoura, S., Stepanyan, S.S., Suzuki, H., Takaki, M., Takeda, H., Tokieda, H., Wakasa, T., Wakui, T., Yako, K., Yanagisawa, Y., Yasuda, J., Yokoyama, R., Yoshida, K., Zenihiro, J., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

The neutron-shell structure of $^{25}$F was studied using quasi-free (p,2p) knockout reaction at 270A MeV in inverse kinematics. The sum of spectroscopic factors of $\pi$0d$_{5/2}$ orbital is found to be $1.0 \pm 0.3$. However, the spectroscopic factor for the ground-state to ground-state transition ($^{25}$F, $^{24}$O$_{g.s.}$) is only $0.36\pm 0.13$, and $^{24}$O excited states are produced from the 0d$_{5/2}$ proton knockout. The result shows that the $^{24}$O core of $^{25}$F nucleus significantly differs from a free $^{24}$O nucleus, and the core consists of 35% $^{24}$O$_{g.s}$. and 65% excited $^{24}$O.

Published
2018

115. $\beta$ decays of the heaviest $N=Z-1$ nuclei and proton instability of $^{97}\mathrm{In}$

Author

Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Ahn, D.S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I., De France, G., Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Górska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G.D., Kim, Y.K., Kojouharov, I., Kubo, T., Kurz, N., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I., Patel, Z., Rajabali, M.M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Söderström, P.A., Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., Xu, Z.Y., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; We report on new or more precise half-lives, β-decay endpoint energies, and β-delayed proton emission branching ratios of Pd91, Cd95, In97, and Sn99. The measured values are consistent with known mirror transitions in lighter Tz=−1/2 nuclei, shell-model calculations, and various mass models. In addition to the β-decaying (9/2+) ground state, circumstantial evidence for a short-lived, proton-emitting isomer with spin (1/2−) was found in In97. Based on the experimental data, a semiempirical theory on proton emission, and shell-model calculations, the proton separation energy of the In97 ground state was determined to be −0.10±0.19 MeV. The existence of the short-lived, proton-unstable (1/2−) isomer in In97 establishes Cd96 as an rp-process waiting point.

Published
2018

116. Beta decays of the heaviest N = Z - l nuclei and proton instability of In-97

Author

Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Ahn, D.S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I., France, G. de, Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Górska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, Andrea, Kameda, D., Kim, G. D., Kim, Y.-K., Kojouharov, I., Kubo, T., Kurz, N., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I., Patel, Z., Rajabali, M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Söderström, P.-A., Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., Xu, Z. Y., German Research Foundation, Federal Ministry of Education and Research (Germany), Ministerio de Economía y Competitividad (España), Natural Sciences and Engineering Research Council of Canada, French-Japanese International Associated Laboratory for Nuclear Structure Problems, National Research Foundation of Korea, Ministry of Education, Science and Technology (South Korea), University of Tokyo, RIKEN Nishina Center for Accelerator-Based Science, and Japan Society for the Promotion of Science

Abstract

6 pags., 4 figs., tab. -- Rapid Communications, We report on new or more precise half-lives, beta-decay endpoint energies, and beta-delayed proton emission branching ratios of(91) Pd, Cd-95,In-97, and Sn-99. The measured values are consistent with known mirror transitions in lighter T-z = -1/2 nuclei, shell-model calculations, and various mass models. In addition to the beta -decaying (9/2(+)) ground state, circumstantial evidence for a short-lived, proton-emitting isomer with spin (1 /2(-)) was found in(97)In. Based on the experimental data, a semiempirical theory on proton emission, and shell-model calculations, the proton separation energy of the In-97 ground state was determined to be -0.10 +/- 0.19 MeV. The existence of the short-lived, proton-unstable (1 /2(-)) isomer in In-97 establishes Cd-9S as an rp-process waiting point., This experiment was performed at RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo.We acknowledge the EUROBALL Owners Committee for loaning the germanium detectors and the PreSpec Collaboration for the readout electronics of the cluster detectors of EURICA. Support for theWAS3ABi setup was provided by the Rare Isotope Science Project, funded by the Ministry of Education, Science and Technology (MEST) and National Research Foundation (NRF) of Korea, as well as KAKENHI (Grant No. 25247045) of the Japan Society for the Promotion of Science (JSPS). The authors acknowledge the support of the DFG cluster of excellence “Origin and Structure of the Universe,” German BMBF under Contract No. 05P15PKFNA and the Spanish Ministerio de Economa y Competitividad via Project No. FPA2014-57196-C5-4-P. Part of the research was funded by the Natural Sciences and Engineering Research Council (NSERC) of Canada and also supported by FJ-NSP (French-Japanese International Associated Laboratory for Nuclear Structure Problems).

Published
2018

117. First observation of $^{20}$B and $^{21}$B

Author

Leblond, S., Marqués, F.M., Gibelin, J., Orr, N.A., Kondo, Y., Nakamura, T., Bonnard, J., Michel, N., Achouri, N.L., Aumann, T., Baba, H., Delaunay, F., Deshayes, Q., Doornenbal, P., Fukuda, N., Hwang, J.W., Inabe, N., Isobe, T., Kameda, D., Kanno, D., Kim, S., Kobayashi, N., Kobayashi, T., Kubo, T., Lee, J., Minakata, R., Motobayashi, T., Murai, D., Murakami, T., Muto, K., Nakashima, T., Nakatsuka, N., Navin, A., Nishi, S., Ogoshi, S., Otsu, H., Sato, H., Satou, Y., Shimizu, Y., Suzuki, H., Takahashi, K., Takeda, H., Takeuchi, S., Tanaka, R., Togano, Y., Tuff, A.G., Vandebrouck, M., Yoneda, K., Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory (nucl-th), Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Phase Diagram of QCD, Quark-Gluon Plasma, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Nuclear Physics
Abstract

The most neutron-rich boron isotopes 20B and 21B have been observed for the first time following proton removal from 22N and 22C at energies around 230 MeV/nucleon. Both nuclei were found to exist as resonances which were detected through their decay into 19B and one or two neutrons. Two-proton removal from 22N populated a prominent resonance-like structure in 20B at around 2.5 MeV above the one-neutron decay threshold, which is interpreted as arising from the closely spaced 1-,2- ground-state doublet predicted by the shell model. In the case of proton removal from 22C, the 19B plus one- and two-neutron channels were consistent with the population of a resonance in 21B 2.47+-0.19 MeV above the two-neutron decay threshold, which is found to exhibit direct two-neutron decay. The ground-state mass excesses determined for 20,21B are found to be in agreement with mass surface extrapolations derived within the latest atomic-mass evaluations., Comment: Accepted for publication in Physical Review Letters. Supplemental Material at http://link.aps.org/supplemental/10.1103/PhysRevLett.121.262502

Published
2018

118. Improved Value for the Gamow-Teller Strength of the Sn100 Beta Decay

Author

Lubos, D., primary, Park, J., additional, Faestermann, T., additional, Gernhäuser, R., additional, Krücken, R., additional, Lewitowicz, M., additional, Nishimura, S., additional, Sakurai, H., additional, Ahn, D. S., additional, Baba, H., additional, Blank, B., additional, Blazhev, A., additional, Boutachkov, P., additional, Browne, F., additional, Čeliković, I., additional, de France, G., additional, Doornenbal, P., additional, Fang, Y., additional, Fukuda, N., additional, Giovinazzo, J., additional, Goel, N., additional, Górska, M., additional, Ilieva, S., additional, Inabe, N., additional, Isobe, T., additional, Jungclaus, A., additional, Kameda, D., additional, Kim, Y. K., additional, Kojouharov, I., additional, Kubo, T., additional, Kurz, N., additional, Kwon, Y. K., additional, Lorusso, G., additional, Moschner, K., additional, Murai, D., additional, Nishizuka, I., additional, Patel, Z., additional, Rajabali, M. M., additional, Rice, S., additional, Schaffner, H., additional, Shimizu, Y., additional, Sinclair, L., additional, Söderström, P.-A., additional, Steiger, K., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Wang, Z., additional, Warr, N., additional, Watanabe, H., additional, Wu, J., additional, and Xu, Z., additional

Published
2019
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119. Proton Shell Evolution below Sn132 : First Measurement of Low-Lying β -Emitting Isomers in Ag123,125

Author

Chen, Z. Q., primary, Li, Z. H., additional, Hua, H., additional, Watanabe, H., additional, Yuan, C. X., additional, Zhang, S. Q., additional, Lorusso, G., additional, Nishimura, S., additional, Baba, H., additional, Browne, F., additional, Benzoni, G., additional, Chae, K. Y., additional, Crespi, F. C. L., additional, Doornenbal, P., additional, Fukuda, N., additional, Gey, G., additional, Gernhäuser, R., additional, Inabe, N., additional, Isobe, T., additional, Jiang, D. X., additional, Jungclaus, A., additional, Jung, H. S., additional, Jin, Y., additional, Kameda, D., additional, Kim, G. D., additional, Kim, Y. K., additional, Kojouharov, I., additional, Kondev, F. G., additional, Kubo, T., additional, Kurz, N., additional, Kwon, Y. K., additional, Li, X. Q., additional, Lou, J. L., additional, Lane, G. J., additional, Li, C. G., additional, Luo, D. W., additional, Montaner-Pizá, A., additional, Moschner, K., additional, Niu, C. Y., additional, Naqvi, F., additional, Niikura, M., additional, Nishibata, H., additional, Odahara, A., additional, Orlandi, R., additional, Patel, Z., additional, Podolyák, Zs., additional, Sumikama, T., additional, Söderström, P.-A., additional, Sakurai, H., additional, Schaffner, H., additional, Simpson, G. S., additional, Steiger, K., additional, Suzuki, H., additional, Taprogge, J., additional, Takeda, H., additional, Vajta, Zs., additional, Wang, H. K., additional, Wu, J., additional, Wendt, A., additional, Wang, C. G., additional, Wu, H. Y., additional, Wang, X., additional, Wu, C. G., additional, Xu, C., additional, Xu, Z. Y., additional, Yagi, A., additional, Ye, Y. L., additional, and Yoshinaga, K., additional

Published
2019
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120. New and comprehensive β - and βp -decay spectroscopy results in the vicinity of Sn100

Author

Park, J., primary, Krücken, R., additional, Lubos, D., additional, Gernhäuser, R., additional, Lewitowicz, M., additional, Nishimura, S., additional, Ahn, D. S., additional, Baba, H., additional, Blank, B., additional, Blazhev, A., additional, Boutachkov, P., additional, Browne, F., additional, Čeliković, I., additional, de France, G., additional, Doornenbal, P., additional, Faestermann, T., additional, Fang, Y., additional, Fukuda, N., additional, Giovinazzo, J., additional, Goel, N., additional, Górska, M., additional, Grawe, H., additional, Ilieva, S., additional, Inabe, N., additional, Isobe, T., additional, Jungclaus, A., additional, Kameda, D., additional, Kim, G. D., additional, Kim, Y.-K., additional, Kojouharov, I., additional, Kubo, T., additional, Kurz, N., additional, Kwon, Y. K., additional, Lorusso, G., additional, Moschner, K., additional, Murai, D., additional, Nishizuka, I., additional, Patel, Z., additional, Rajabali, M. M., additional, Rice, S., additional, Sakurai, H., additional, Schaffner, H., additional, Shimizu, Y., additional, Sinclair, L., additional, Söderström, P.-A., additional, Steiger, K., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Wang, Z., additional, Watanabe, H., additional, Wu, J., additional, and Xu, Z. Y., additional

Published
2019
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121. Toward the limit of nuclear binding on the N=Z line: Spectroscopy of Cd96

Author

Davies, P. J., primary, Park, J., additional, Grawe, H., additional, Wadsworth, R., additional, Gernhäuser, R., additional, Krücken, R., additional, Nowacki, F., additional, Ahn, D. S., additional, Ameil, F., additional, Baba, H., additional, Bäck, T., additional, Blank, B., additional, Blazhev, A., additional, Boutachkov, P., additional, Browne, F., additional, Čeliković, I., additional, Dewald, M., additional, Doornenbal, P., additional, Faestermann, T., additional, Fang, Y., additional, de France, G., additional, Fukuda, N., additional, Gengelbach, A., additional, Gerl, J., additional, Giovinazzo, J., additional, Go, S., additional, Goel, N., additional, Górska, M., additional, Gregor, E., additional, Hotaka, H., additional, Ilieva, S., additional, Inabe, N., additional, Isobe, T., additional, Jenkins, D. G., additional, Jolie, J., additional, Jung, H. S., additional, Jungclaus, A., additional, Kameda, D., additional, Kim, G. D., additional, Kim, Y.-K., additional, Kojouharov, I., additional, Kubo, T., additional, Kurz, N., additional, Lewitowicz, M., additional, Lorusso, G., additional, Lubos, D., additional, Maier, L., additional, Merchan, E., additional, Moschner, K., additional, Murai, D., additional, Naqvi, F., additional, Nishibata, H., additional, Nishimura, D., additional, Nishimura, S., additional, Nishizuka, I., additional, Patel, Z., additional, Pietralla, N., additional, Rajabali, M. M., additional, Rice, S., additional, Sakurai, H., additional, Schaffner, H., additional, Shimizu, Y., additional, Sinclair, L. F., additional, Söderström, P.-A., additional, Steiger, K., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Taprogge, J., additional, Thöle, P., additional, Valder, S., additional, Wang, Z., additional, Warr, N., additional, Watanabe, H., additional, Werner, V., additional, Wu, J., additional, Xu, Z. Y., additional, Yagi, A., additional, Yoshinaga, K., additional, and Zhu, Y., additional

Published
2019
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122. First Observation of B20 and B21

Author

Leblond, S., primary, Marqués, F. M., additional, Gibelin, J., additional, Orr, N. A., additional, Kondo, Y., additional, Nakamura, T., additional, Bonnard, J., additional, Michel, N., additional, Achouri, N. L., additional, Aumann, T., additional, Baba, H., additional, Delaunay, F., additional, Deshayes, Q., additional, Doornenbal, P., additional, Fukuda, N., additional, Hwang, J. W., additional, Inabe, N., additional, Isobe, T., additional, Kameda, D., additional, Kanno, D., additional, Kim, S., additional, Kobayashi, N., additional, Kobayashi, T., additional, Kubo, T., additional, Lee, J., additional, Minakata, R., additional, Motobayashi, T., additional, Murai, D., additional, Murakami, T., additional, Muto, K., additional, Nakashima, T., additional, Nakatsuka, N., additional, Navin, A., additional, Nishi, S., additional, Ogoshi, S., additional, Otsu, H., additional, Sato, H., additional, Satou, Y., additional, Shimizu, Y., additional, Suzuki, H., additional, Takahashi, K., additional, Takeda, H., additional, Takeuchi, S., additional, Tanaka, R., additional, Togano, Y., additional, Tuff, A. G., additional, Vandebrouck, M., additional, and Yoneda, K., additional

Published
2018
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123. Cross-Shell States in 17,19C Populated via One-Neutron Knockout Reactions

Author

Satou, Y., primary, Hwang, J. W., additional, Kim, S., additional, Orr, N. A., additional, Kondo, Y., additional, Nakamura, T., additional, Gibelin, J., additional, Achouri, N. L., additional, Aumann, T., additional, Baba, H., additional, Delaunay, F., additional, Doornenbal, P., additional, Fukuda, N., additional, Inabe, N., additional, Isobe, T., additional, Kameda, D., additional, Kanno, D., additional, Kobayashi, N., additional, Kobayashi, T., additional, Kubo, T., additional, Leblond, S., additional, Lee, J., additional, Marqués, F. M., additional, Minakata, R., additional, Motobayashi, T., additional, Murai, D., additional, Murakami, T., additional, Muto, K., additional, Nakashima, T., additional, Nakatsuka, N., additional, Navin, A., additional, Nishi, S., additional, Ogoshi, S., additional, Otsu, H., additional, Sato, H., additional, Shimizu, Y., additional, Suzuki, H., additional, Takahashi, K., additional, Takeda, H., additional, Takeuchi, S., additional, Tanaka, R., additional, Togano, Y., additional, Tuff, A. G., additional, Vandebrouck, M., additional, and Yoneda, K., additional

Published
2018
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124. Observation of a γ-decaying millisecond isomeric state in 128Cd80

Author

Jungclaus, A., Grawe, H., Nishimura, S., Doornenbal, P., Lorusso, G., Simpson, G.S., Söderström, P.-A., Sumikama, T., Taprogge, J., Xu, Z.Y., Baba, H., Browne, F., Fukuda, N., Gernhäuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H.S., Kameda, D., Kim, G.D., Kim, Y.-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y.K., Li, Z., Sakurai, H., Schaffner, H., Shimizu, Y., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Bönig, S., Chae, K.Y., Coraggio, L., Daugas, J.-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Itaco, N., Kondev, F.G., Kröll, T., Lane, G.J., Montaner-Pizá, A., Moschner, K., Mücher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyák, Zs., and Wendt, A.

Published
2017
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125. Lifetime measurements of the first 2 + states in 104,106 Zr: Evolution of ground-state deformations

Author

Browne, F., Bruce, A.M., Sumikama, T., Nishizuka, I., Nishimura, S., Doornenbal, P., Lorusso, G., Söderström, P.-A., Watanabe, H., Daido, R., Patel, Z., Rice, S., Sinclair, L., Wu, J., Xu, Z.Y., Yagi, A., Baba, H., Chiga, N., Carroll, R., Didierjean, F., Fang, Y., Fukuda, N., Gey, G., Ideguchi, E., Inabe, N., Isobe, T., Kameda, D., Kojouharov, I., Kurz, N., Kubo, T., Lalkovski, S., Li, Z., Lozeva, R., Nishibata, H., Odahara, A., Podolyák, Zs., Regan, P.H., Roberts, O.J., Sakurai, H., Schaffner, H., Simpson, G.S., Suzuki, H., Takeda, H., Tanaka, M., Taprogge, J., Werner, V., and Wieland, O.

Subjects
Nuclear and High Energy Physics
Published
2015
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126. First observation of gamma rays emitted from excited states south-east of Sn-132: The pi g(9/2)(-1) circle times nu f(7/2) multiplet of In-132(83)

Author

Jungclaus, A, Gargano, A, Grawe, H, Taprogge, J, Nishimura, S, Doornenbal, P, Lorusso, G, Shimizu, Y, Simpson, Gs, Soderstrom, Pa, Sumikama, T, Xu, Zy, Baba, H, Browne, F, Fukuda, N, Gernhauser, R, Gey, G, Inabe, N, Isobe, T, Jung, Hs, Kameda, D, Kim, Gd, Kim, Yk, Kojouharov, I, Kubo, T, Kurz, N, Kwon, Yk, Li, Z, Sakurai, H, Schaffner, H, Steiger, K, Suzuki, H, Takeda, H, Vajta, Z, Watanabe, H, Wu, J, Yagi, A, Yoshinaga, K, Bonig, S, Coraggio, L, Daugas, Jm, Drouet, F, Gadea, A, Ilieva, S, Kroll, T, Montaner Piza, A, Moschner, K, Mucher, D, Nishibata, H, Odahara, A, Orlandi, R, Wendt, A., ITACO, Nunzio, Jungclaus, A, Gargano, A, Grawe, H, Taprogge, J, Nishimura, S, Doornenbal, P, Lorusso, G, Shimizu, Y, Simpson, G, Soderstrom, Pa, Sumikama, T, Xu, Zy, Baba, H, Browne, F, Fukuda, N, Gernhauser, R, Gey, G, Inabe, N, Isobe, T, Jung, H, Kameda, D, Kim, Gd, Kim, Yk, Kojouharov, I, Kubo, T, Kurz, N, Kwon, Yk, Li, Z, Sakurai, H, Schaffner, H, Steiger, K, Suzuki, H, Takeda, H, Vajta, Z, Watanabe, H, Wu, J, Yagi, A, Yoshinaga, K, Bonig, S, Coraggio, L, Daugas, Jm, Drouet, F, Gadea, A, Ilieva, S, Itaco, Nunzio, Kroll, T, Montaner Piza, A, Moschner, K, Mucher, D, Nishibata, H, Odahara, A, Orlandi, R, and Wendt, A.

Subjects
Nuclear Experiment
Abstract

For the first time, the γ decay of excited states has been observed in a nucleus situated in the quadrant south-east of doubly magic 132Sn, a region in which experimental information so far is limited to ground-state properties. Six γ rays with energies of 50, 86, 103, 227, 357, and 602 keV were observed following the β-delayed neutron emission from 133Cd85, populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN within the EURICA project. The new experimental information is compared to the results of a modern realistic shell-model calculation, the first one in this region very far from stability, focusing in particular on the π0g−19/2⊗ ν1f7/2 particle-hole multiplet in 132In83. In addition, theoretical estimates based on a scaling of the two-body matrix elements for the πh11/2⊗ νg9/2 analog multiplet in 208Tl127, one major proton and one major neutron shell above, are presented. ispartof: Physical Review C vol:93 issue:4 pages:1-6 status: published

Published
2016

127. beta decay of semi-magic Cd-130: Revision and extension of the level scheme of In-130

Author

Jungclaus, A., Grawe, 1 H., Nishimura, 2 S., Doornenbal, 3 P., Lorusso, 3 G., Simpson, 5 G. S., S¨oderstr¨om, 6 P. A., Sumikama, 3 T., Taprogge, 7 J., Xu, 3 Z. Y., Baba, 9 H., Browne, 3 F., Fukuda, 3 N., Gernh¨auser, 3 R., Gey, 11 G., Inabe, 3 N., Isobe, 3 T., Jung, 3 H. S., Kameda, * D., Kim, 3 G. D., Kim, 14 Y. K., Kojouharov, 15 I., Kubo, 2 T., Kurz, 3 N., Kwon, 2 Y. K., Li, 14 Z., Sakurai, 16 H., Schaffner, 9 H., Shimizu, 2 Y., Steiger, 3 K., Suzuki, 11 H., Takeda, 3 H., Zs Vajta, 3 Z.s. Vajta, Watanabe, 3 H., Wu, 3 J., Yagi, 3 A., Yoshinaga, 18 K., Benzoni, 19 G., B¨onig, 20 S., Chae, 21 K. Y., Coraggio, 22 L., Daugas, 23 J. M., Drouet, 24 F., Gadea, 6 A., Gargano, 25 A., Ilieva, 23 S., Kondev, 26 F. G., Kr¨oll, 27 T., Lane, 21 G. J., Montaner Piz´a, 28 A., Moschner, 25 K., M¨ucher, 29 D., Naqvi, 11 F., Niikura, 30 M., Nishibata, 9 H., Odahara, 18 A., Orlandi, 18 R., Patel, 32 Z., Zs Podoly´ak, 5 Z.s. Podoly´ak, A. Wendt, 5, A. Wendt, ITACO, Nunzio, Jungclaus, A., Grawe, 1 H., Nishimura, 2 S., Doornenbal, 3 P., Lorusso, 3 G., Simpson, 5 G. S., S¨oderstr¨om, 6 P. A., Sumikama, 3 T., Taprogge, 7 J., Xu, 3 Z. Y., Baba, 9 H., Browne, 3 F., Fukuda, 3 N., Gernh¨auser, 3 R., Gey, 11 G., Inabe, 3 N., Isobe, 3 T., Jung, 3 H. S., Kameda, * D., Kim, 3 G. D., Kim, 14 Y. K., Kojouharov, 15 I., Kubo, 2 T., Kurz, 3 N., Kwon, 2 Y. K., Li, 14 Z., Sakurai, 16 H., Schaffner, 9 H., Shimizu, 2 Y., Steiger, 3 K., Suzuki, 11 H., Takeda, 3 H., Zs Vajta, 3 Z. s. Vajta, Watanabe, 3 H., Wu, 3 J., Yagi, 3 A., Yoshinaga, 18 K., Benzoni, 19 G., B¨onig, 20 S., Chae, 21 K. Y., Coraggio, 22 L., Daugas, 23 J. M., Drouet, 24 F., Gadea, 6 A., Gargano, 25 A., Ilieva, 23 S., Itaco, Nunzio, Kondev, 26 F. G., Kr¨oll, 27 T., Lane, 21 G. J., Montaner Piz´a, 28 A., Moschner, 25 K., M¨ucher, 29 D., Naqvi, 11 F., Niikura, 30 M., Nishibata, 9 H., Odahara, 18 A., Orlandi, 18 R., Patel, 32 Z., Zs Podoly´ak, 5 Z. s. Podoly´ak, A. Wendt, 5, and A., Wendt

Abstract

The beta decay of the semi-magic nucleus Cd-130 has been studied at the RIBF facility at the RIKEN Nishina Center. The high statistics of the present experiment allowed for a revision of the established level scheme of In-130 and the observation of additional beta feeding to high- lying core-excited states in In-130. The experimental results are compared to shell-model calculations employing a model space consisting of the full major N = 50-82 neutron and Z = 28-50 proton shells and the NA-14 interaction, and good agreement is found.

Published
2016

128. Beta decays of the heaviest N = Z - l nuclei and proton instability of In-97.

Author

German Research Foundation, Federal Ministry of Education and Research (Germany), Ministerio de Economía y Competitividad (España), Natural Sciences and Engineering Research Council of Canada, French-Japanese International Associated Laboratory for Nuclear Structure Problems, National Research Foundation of Korea, Ministry of Education, Science and Technology (South Korea), University of Tokyo, RIKEN Nishina Center for Accelerator-Based Science, Japan Society for the Promotion of Science, Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Ahn, D.S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I., France, G. de, Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Górska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, Andrea, Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kubo, T., Kurz, N., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I., Patel, Z., Rajabali, M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Söderström, P.-A., Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., Xu, Z. Y., German Research Foundation, Federal Ministry of Education and Research (Germany), Ministerio de Economía y Competitividad (España), Natural Sciences and Engineering Research Council of Canada, French-Japanese International Associated Laboratory for Nuclear Structure Problems, National Research Foundation of Korea, Ministry of Education, Science and Technology (South Korea), University of Tokyo, RIKEN Nishina Center for Accelerator-Based Science, Japan Society for the Promotion of Science, Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Ahn, D.S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I., France, G. de, Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Górska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, Andrea, Kameda, D., Kim, G. D., Kim, Y. K., Kojouharov, I., Kubo, T., Kurz, N., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I., Patel, Z., Rajabali, M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Söderström, P.-A., Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., and Xu, Z. Y.

Abstract

We report on new or more precise half-lives, beta-decay endpoint energies, and beta-delayed proton emission branching ratios of(91) Pd, Cd-95,In-97, and Sn-99. The measured values are consistent with known mirror transitions in lighter T-z = -1/2 nuclei, shell-model calculations, and various mass models. In addition to the beta -decaying (9/2(+)) ground state, circumstantial evidence for a short-lived, proton-emitting isomer with spin (1 /2(-)) was found in(97)In. Based on the experimental data, a semiempirical theory on proton emission, and shell-model calculations, the proton separation energy of the In-97 ground state was determined to be -0.10 +/- 0.19 MeV. The existence of the short-lived, proton-unstable (1 /2(-)) isomer in In-97 establishes Cd-9S as an rp-process waiting point.

Published
2018

129. Properties of γ -decaying isomers and isomeric ratios in the Sn 100 region

Author

Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Jungclaus, Andrea, Kameda, D., Suzuki, H., Takeda, H., Wang, Z., RIKEN Nishina Center for Accelerator-Based Science, University of Tokyo, Ministry of Education, Science and Technology (South Korea), National Research Foundation of Korea, Japan Society for the Promotion of Science, German Research Foundation, Federal Ministry of Education and Research (Germany), Ministerio de Economía y Competitividad (España), Natural Sciences and Engineering Research Council of Canada, and French-Japanese International Associated Laboratory for Nuclear Structure Problems

Abstract

J. Park et al.-- 10 pags., 10 figs., 2 tabs. -- Publisher's Note / Erratum: Phys. Rev. C 96, 049901 (2017), Half-lives and energies of γ rays emitted in the decay of isomeric states of nuclei in the vicinity of the doubly magic Sn100 were measured in a decay spectroscopy experiment at Rikagaku Kenkyusho (The Institute of Physical and Chemical Research) of Japan Nishina Center. The measured half-lives, some with improved precision, are consistent with literature values. Three new results include a 55-keV E2γ ray from a new (4+) isomer with T1/2=0.23(6)μs in Rh92, a 44-keV E2γ ray from the (15+) isomer in Ag96, and T1/2(6+)=13(2) ns in Cd98. Shell-model calculations of electromagnetic transition strengths in the (p1/2,g9/2) model space agree with the experimental results. In addition, experimental isomeric ratios were compared to the theoretical predictions derived with an abrasion-ablation model and the sharp cutoff model. The results agreed within a factor of 2 for most isomers. From the nonobservation of time-delayed γ rays in Sn100, new constraints on the T1/2, γ-ray energy, and internal conversion coefficients are proposed for the hypothetical isomer in Sn100., The authors would like to thank the personnel at the RIKEN Nishina Center for providing the exotic radioactive isotope beam with record intensities. This experiment was performed at RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo.We acknowledge the EUROBALL Owners Committee for loaning the germanium detectors and the PreSpec Collaboration for the readout electronics of the cluster detectors of EURICA. Support for the WAS3ABi setup was provided by the Rare Isotope Science Project, funded by the Ministry of Education, Science and Technology (MEST) and National Research Foundation (NRF) of Korea, as well as KAKENHI (Grant No. 25247045) of Japan Society for the Promotion of Science (JSPS). The authors acknowledge the support of the DFG cluster of excellence “Origin and Structure of the Universe,” German BMBF under Contract No. 05P15PKFNA and the Spanish Ministerio de Economía y Competitividad via Project No. FPA2014-57196-C5-4-P. Part of the research was funded by the Natural Sciences and Engineering Research Council (NSERC) of Canada and also supported by FJNSP LIA (French-Japanese International Associated Laboratory for Nuclear Structure Problems).

Published
2017

130. Isomer-delayed -ray spectroscopy of A = 159 - 164 midshell nuclei and the variation of K-forbidden E1 transition hindrance factors

Author

Patel, Z, Walker, Philip, Podolyak, Zsolt, Regan, Patrick, Berry, Thomas, Söderström, P-A, Watanabe, H, Ideguchi, E, Simpson, GS, Nishimura, S, Wu, Q, Xu, FR, Browne, F, Doornenbal, P, Lorusso, G, Rice, S, Sinclair, L, Sumikama, T, Wu, J, Xu, ZY, Aoi, N, Baba, H, Bello Garrote, FL, Benzoni, G, Daido, R, Dombrádi, Zs, Fang, Y, Fukuda, N, Gey, G, Go, S, Gottardo, A, Inabe, N, Isobe, T, Kameda, D, Kobayashi, K, Kobayashi, M, Komatsubara, T, Kojouharov, I, Kubo, T, Kurz, N, Kuti, I, Li, Z, Matsushita, M, Michimasa, S, Moon, C-B, Nishibata, H, Nishizuka, I, Odahara, A, Sahin, E, Sakurai, H, Schaffner, H, Suzuki, H, Takeda, H, Tanaka, M, Taprogge, J, Vajta, Zs, Yagi, A, and Yokoyama, R

Abstract

Excited states have been studied in \iso{159}{Sm}, \iso{161}{Sm}, \iso{162}{Sm} (Z~=~62), \iso{163}{Eu} (Z~=~63), and \iso{164}{Gd} (Z~=~64), populated by isomeric decay following 238U projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6 \mus. In comparison with other published data, revised interpretations are proposed for \iso{159}{Sm} and \iso{163}{Eu}. The first data for excited states in \iso{161}{Sm} are presented, where a 2.6 \mus isomer is assigned a three-quasiparticle, K^\pi = 17/2^- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in 163Sm, 164Eu and 165Eu.

Published
2017

131. K-selection in the decay of the (ν 5 2 [532] ⊗ 3 2 [411])4- isomeric state in 102Zr

Author

Browne, F, Bruce, AM, Sumikama, T, Nishizuka, I, Nishimura, S, Doornenbal, P, Lorusso, G, Soderstrom, P-A, Watanabe, H, Daido, R, Patel, Z, Rice, S, Sinclair, L, Wu, J, Xu, ZY, Yagi, A, Baba, H, Chiga, N, Carroll, R, Didierjean, F, Fang, Y, Fukuda, N, Gey, G, Ideguchi, E, Inabe, N, Isobe, T, Kameda, D, Kojouharov, I, Kurz, N, Kubo, T, Lalkovski, S, Li, Z, Lozeva, R, Nishibata, N, Odahara, A, Podolyak, Zsolt, Regan, Patrick, Roberts, OJ, Sakurai, H, Schaffner, H, Simpson, GS, Suzuki, H, Takeda, H, Tanaka, M, Taprogge, J, Werner, V, and Wieland, O

Abstract

The (ν 5 2 [532] ⊗ 3 2 [411]) 4− state in 102Zr, populated in the β-decay of 102Y, has been measured to be isomeric with a mean lifetime of 9.5(7) ns. It decays via four transitions, two of which are ∆K = 2 (to the 3+ and 4+ members of the 2+ γ band) and one is ∆K = 4 (to the 4+ member of the ground state 0+ band). The fourth (low-energy) transition is inferred to decay to an as-yet unassigned state. Hindrances of 106 were derived for the ∆K = 2 transitions compared to Weisskopf estimates and the ∆K = 4 transition hindered by a factor of 109 . These values are consistent with the decay pattern of the analogous isomeric state in the neighbouring N = 62 nucleus 100Sr and with the broader systematics of such transitions. A comparison of the hindrances for the ∆K = 4 transitions suggests that 102Zr is hardened against the γ degree of freedom compared to 100Sr.

Published
2017

132. Properties of $\gamma$-decaying isomers and isomeric ratios in the $^{100}$Sn region

Author

Park, J., Krücken, R., Lubos, D., Gernhäuser, R., Lewitowicz, M., Nishimura, S., Ahn, D.S., Baba, H., Blank, B., Blazhev, A., Boutachkov, P., Browne, F., Celikovic, I., De France, G., Doornenbal, P., Faestermann, T., Fang, Y., Fukuda, N., Giovinazzo, J., Goel, N., Górska, M., Grawe, H., Ilieva, S., Inabe, N., Isobe, T., Jungclaus, A., Kameda, D., Kim, G.D., Kim, Y.-K., Kojouharov, I., Kubo, T., Kurz, N., Lorusso, G., Moschner, K., Murai, D., Nishizuka, I., Patel, Z., Rajabali, M.M., Rice, S., Sakurai, H., Schaffner, H., Shimizu, Y., Sinclair, L., Söderström, P.-A., Steiger, K., Sumikama, T., Suzuki, H., Takeda, H., Wang, Z., Watanabe, H., Wu, J., Xu, Z.Y., Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; Half-lives and energies of γ rays emitted in the decay of isomeric states of nuclei in the vicinity of the doubly magic Sn100 were measured in a decay spectroscopy experiment at Rikagaku Kenkyusho (The Institute of Physical and Chemical Research) of Japan Nishina Center. The measured half-lives, some with improved precision, are consistent with literature values. Three new results include a 55-keV E2γ ray from a new (4+) isomer with T1/2=0.23(6)μs in Rh92, a 44-keV E2γ ray from the (15+) isomer in Ag96, and T1/2(6+)=13(2) ns in Cd98. Shell-model calculations of electromagnetic transition strengths in the (p1/2,g9/2) model space agree with the experimental results. In addition, experimental isomeric ratios were compared to the theoretical predictions derived with an abrasion-ablation model and the sharp cutoff model. The results agreed within a factor of 2 for most isomers. From the nonobservation of time-delayed γ rays in Sn100, new constraints on the T1/2, γ-ray energy, and internal conversion coefficients are proposed for the hypothetical isomer in Sn100.

Published
2017

133. Corrigendum to 'Single-neutron knockout from $^{20}$C and the structure of $^{20}$C' [Phys. Lett. B 769 (2017) 503–508]

Author

Hwang, J. W., Kim, S., Delaunay, F., Doornenbal, P., Fukuda, N., Inabe, N., Isobe, T., Kameda, D., Kanno, D., Kobayashi, N., Kobayashi, T., Kubo, T., Satou, Y., Leblond, S., Lee, J., Marqués, F. M., Minakata, R., Motobayashi, T., Murai, D., Murakami, T., Muto, K., Nakashima, T., Nakatsuka, N., Orr, N. A., Navin, A., Nishi, S., Ogoshi, S., Otsu, H., Sato, H., Shimizu, Y., Suzuki, H., Takahashi, K., Takeda, H., Takeuchi, S., Kondo, Y., Tanaka, R., Togano, Y., Tuff, A. G., Vandebrouck, M., Yoneda, K., Nakamura, T., Gibelin, J., Achouri, N. L., Aumann, T., and Baba, H.

Subjects
ddc:530
Abstract

Physics letters / B 774, 723 - (2017). doi:10.1016/j.physletb.2017.08.072, Published by North-Holland Publ., Amsterdam

Published
2017
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134. $K$ selection in the decay of the ($ν\frac{5}{2}[532] \bigotimes \frac{3}{2}[411]$)4$^−$ isomeric state in $^{102}$Zr

Author

Browne, F., Bruce, A.M., Sumikama, T., Nishizuka, I., Nishimura, S., Doornenbal, P., Lorusso, G., Söderström, P.-A., Watanabe, H., Daido, R., Patel, Z., Rice, S., Sinclair, L., Wu, J., Xu, Z.Y., Yagi, A., Baba, H., Chiga, N., Carroll, R., Didierjean, F., Fang, Y., Fukuda, N., Gey, G., Ideguchi, E., Inabe, N., Isobe, T., Kameda, D., Kojouharov, I., Kurz, N., Kubo, T., Lalkovski, S., Li, Z., Lozeva, R., Nishibata, N., Odahara, A., Podolyák, Zs., Regan, P.H., Roberts, O.J., Sakurai, H., Schaffner, H., Simpson, G.S., Suzuki, H., Takeda, H., Tanaka, M., Taprogge, J., Werner, V., Wieland, O., Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut Laue-Langevin (ILL), ILL, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The (ν52[532]⊗32[411]) 4− state in Zr102, populated in the β decay of Y102, has been measured to be isomeric with a mean lifetime of 9.5(7) ns. It decays via four transitions, two of which are ΔK=2 (to the 3+ and 4+ members of the 2γ+ band) and one is ΔK=4 (to the 4+ member of the ground state 0+ band). The fourth (low-energy) transition is inferred to decay to an as-yet unassigned state. Hindrances of 106 were derived for the ΔK=2 transitions compared to Weisskopf estimates and the ΔK=4 transition hindered by a factor of 109. These values are consistent with the decay pattern of the analogous isomeric state in the neighboring N=62 nucleus Sr100 and with the broader systematics of such transitions. A comparison of the hindrances for the ΔK=4 transitions suggests that Zr102 is hardened against the γ degree of freedom compared to Sr100.

Published
2017

135. Discovery of new isotopes $^{81,82}$Mo and $^{85,86}$Ru and a determination of the particle instability of $^{103}$Sb

Author

Suzuki, H., Kubo, T., Fukuda, N., Inabe, N., Kameda, D., Takeda, H., Yoshida, K., Kusaka, K., Yanagisawa, Y., Ohtake, M., Sato, H., Shimizu, Y., Baba, H., Kurokawa, M., Tanaka, K., Tarasov, O.B., Bazin, D., Morrissey, D.J., Sherrill, B.M., Ieki, K., Murai, D., Iwasa, N., Chiba, A., Ohkoda, Y., Ideguchi, E., Go, S., Yokoyama, R., Fujii, T., Nishimura, D., Nishibata, H., Momota, S., Lewitowicz, M., De France, G., Celikovic, I., Steiger, K., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; A search for new proton-rich isotopes using projectile fragmentation of a 345-MeV/nucleon 124Xe beam has been performed with the BigRIPS in-flight separator at the RIKEN Nishina Center RI Beam Factory. Projectile fragments were identified by measuring the time of flight, magnetic rigidity, and energy loss in the BigRIPS separator. Projectile fragments then were transported downstream of the BigRIPS separator and re-identified by measuring the time of flight and total kinetic energy. Through such particle re-identification, we have discovered four new isotopes 81,82Mo and 85,86Ru located near the proton drip line. The 76Y and 78Zr isotopes near the proton drip line also were identified, supporting the previous report on their discovery. Furthermore, we have obtained the first clear evidence for the particle instability of 103Sb. Based on the systematics of measured production yields, the upper limit values were evaluated for the half-lives of the particle-unbound isotopes 81Nb,85Tc, and 103Sb.

Published
2017

136. Single-neutron knockout from $^{20}\textrm{C}$ and the structure of $^{19}\textrm{C}$

Author

Hwang, J.W., Kim, S., Satou, Y., Orr, N.A., Kondo, Y., Nakamura, T., Gibelin, J., Achouri, N.L., Aumann, T., Baba, H., Delaunay, F., Doornenbal, P., Fukuda, N., Inabe, N., Isobe, T., Kameda, D., Kanno, D., Kobayashi, N., Kobayashi, T., Kubo, T., Leblond, S., Lee, J., Marqués, F.M., Minakata, R., Motobayashi, T., Murai, D., Murakami, T., MUTO, K., Nakashima, T., Nakatsuka, N., Navin, A., Nishi, S., Ogoshi, S., Otsu, H., Sato, H., Shimizu, Y., Suzuki, H., Takahashi, K., Takeda, H., Takeuchi, S., Tanaka, R., Togano, Y., Tuff, A.G., Vandebrouck, M., Yoneda, K., Laboratoire de physique corpusculaire de Caen ( LPCC ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Ecole Nationale Supérieure d'Ingénieurs de Caen ( ENSICAEN ), Normandie Université ( NU ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Grand Accélérateur National d'Ions Lourds ( GANIL ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], FOS: Physical sciences, Heavy-ion knockout, Shell evolution, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Theory (nucl-th), Invariant mass spectroscopy, Nuclear Experiment (nucl-ex), [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, [ PHYS.NUCL ] Physics [physics]/Nuclear Theory [nucl-th]
Abstract

The low-lying unbound level structure of the halo nucleus $^{19}\textrm{C}$ has been investigated using single-neutron knockout from $^{20}\textrm{C}$ on a carbon target at 280 MeV/nucleon. The invariant mass spectrum, derived from the momenta of the forward going beam velocity $^{18}\textrm{C}$ fragment and neutrons, was found to be dominated by a very narrow near threshold ($E_\textrm{rel}$ = 0.036(1) MeV) peak. Two less strongly populated resonance-like features were also observed at $E_\textrm{rel}$ = 0.84(4) and 2.31(3) MeV, both of which exhibit characteristics consistent with neutron $p$-shell hole states. Comparisons of the energies, measured cross sections and parallel momentum distributions to the results of shell-model and eikonal reaction calculations lead to spin-parity assignments of $5/2^+_1$ and $1/2^-_1$ for the levels at $E_x$ = 0.62(9) and 2.89(10) MeV with $S_n$ = 0.58(9) MeV. Spectroscopic factors were also deduced and found to be in reasonable accord with shell-model calculations. The valence neutron configuration of the $^{20}\textrm{C}$ ground state is thus seen to include, in addition to the known $1s^2_{1/2}$ component, a significant $0d^2_{5/2}$ contribution. The level scheme of $^{19}\textrm{C}$, including significantly the $1/2^-_1$ cross-shell state, is well accounted for by the YSOX shell-model interaction developed from the monopole-based universal interaction., Physics Letters B, in press

Published
2017

138. Nuclear structure and β -decay schemes for Te nuclides beyond N=82

Author

Moon, B., Moon, C.B., Söderström, P.A., Odahara, A., Lozeva, R., Hong, B., Browne, F., Jung, H.S., Lee, P., Lee, C.S., Yagi, A., Yuan, C., Nishimura, S., Doornenbal, P., Lorusso, G., Sumikama, T., Watanabe, H., Kojouharov, I., Isobe, T., Baba, H., Sakurai, H., Daido, R., Fang, Y., Nishibata, H., Patel, Z., Rice, S., Sinclair, L., Wu, J., Xu, Z.Y., Yokoyama, R., Kubo, T., Inabe, N., Suzuki, H., Fukuda, N., Kameda, D., Takeda, H., Ahn, D.S., Shimizu, Y., Murai, D., Bello Garrote, F.L., Daugas, J.M., Didierjean, F., Ideguchi, E., Ishigaki, T., Morimoto, S., Niikura, M., Nishizuka, I., Komatsubara, T., Kwon, Y.K., Tshoo, K., Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière ( CSNSM ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Pluridisciplinaire Hubert Curien ( IPHC ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ), Direction des Applications Militaires ( DAM ), and Commissariat à l'énergie atomique et aux énergies alternatives ( CEA )

Subjects
27.60.+j, Astrophysics::High Energy Astrophysical Phenomena, 21.60.Cs, 21.10.Re, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 23.40.-s
Abstract

International audience; We study for the first time the internal structure of Te140 through the β-delayed γ-ray spectroscopy of Sb140. The very neutron-rich Sb140 nuclei with Z=51 and N=89 were produced by the in-flight fission of U238 beams at the Radioactive Isotope Beam Factory, RIKEN. The half-life and spin-parity of Sb140 are reported as 173±12 ms and 3−, respectively. In addition to the excited states of Te140 produced by the β-decay branch, the β-delayed one-neutron and two-neutron emission branches were also established. By identifying the first 2+ and 4+ excited states of Te140, we found that Te isotopes persist in their vibrator character with E(4+)/E(2+)=2. We discuss the distinctive features manifest in this region revealed in pairs of isotopes with the same neutron holes and particles with respect to N=82.

Published
2017

139. Isomer-delayed $\gamma$-ray spectroscopy of $A=159-164$ midshell nuclei and the variation of $K$-forbidden $E1$ transition hindrance factors

Author

Patel, Z., Walker, P.M., Podolyák, Zs., Regan, P.H., Berry, T.A., Söderström, P.A., Watanabe, H., Ideguchi, E., Simpson, G.S., Nishimura, S., Wu, Q., Xu, F.R., Browne, F., Doornenbal, P., Lorusso, G., Rice, S., Sinclair, L., Sumikama, T., Wu, J., Xu, Z.Y., Aoi, N., Baba, H., Bello Garrote, F.L., Benzoni, G., Daido, R., Dombrádi, Zs., Fang, Y., Fukuda, N., Gey, G., Go, S., Gottardo, A., Inabe, N., Isobe, T., Kameda, D., Kobayashi, K., Kobayashi, M., Komatsubara, T., Kojouharov, I., Kubo, T., Kurz, N., Kuti, I., Li, Z., Matsushita, M., Michimasa, S., Moon, C.B., Nishibata, H., Nishizuka, I., Odahara, A., Şahin, E., Sakurai, H., Schaffner, H., Suzuki, H., Takeda, H., Tanaka, M., Taprogge, J., Vajta, Zs., Yagi, A., Yokoyama, R., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; Excited states have been studied in Sm159, Sm161, Sm162 (Z=62), Eu163 (Z=63), and Gd164 (Z=64), populated by isomeric decay following U238 projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6μs. In comparison with other published data, revised interpretations are proposed for Sm159 and Eu163. The first data for excited states in Sm161 are presented, where a 2.6-μs isomer is assigned a three-quasiparticle, Kπ=17/2− structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in Sm163, Eu164, and Eu165.

Published
2017

140. New $K$ isomers in the neutron-rich $N$=100 isotones $^{162}$Sm, $^{136}$Eu , and $^{164}$Gd

Author

Yokoyama, R., Go, S., Kameda, D., Kubo, T., Inabe, N., Fukuda, N., Takeda, H., Suzuki, H., Yoshida, K., Kusaka, K., Tanaka, K., Yanagisawa, Y., Ohtake, M., Sato, H., Shimizu, Y., Baba, H., Kurokawa, M., Nishimura, D., Ohnishi, T., Iwasa, N., Chiba, A., Yamada, T., Ideguchi, E., Fujii, T., Nishibata, H., Ieki, K., Murai, D., Momota, S., Sato, Y., Hwang, J.W., Kim, S., Tarasov, O.B., Morrissey, D.J., Sherrill, B.M., Simpson, G., Praharaj, C.R., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; Very neutron-rich Z∼60 isotopes produced by in-flight fission of a 345 MeV/nucleon U238 beam at the RI Beam Factory, RIKEN Nishina Center, have been studied by delayed γ-ray spectroscopy. New isomers were discovered in the neutron-rich N=100 isotones Sm162, Eu163, and Gd164. Half-lives, γ-ray energies, and relative intensities of these isomers were obtained. Level schemes were proposed for these nuclei and the first 2+ and 4+ states were assigned for the even-even nuclei. The first 2+ and 4+ state energies decrease as the proton numbers get smaller. The energies and the half-lives of the new isomers are very similar to those of 4− isomers known in less neutron-rich N=100 isotones Er168 and Yb170. A deformed Hartree-Fock with angular momentum projection model suggests Kπ=4− two-quasiparticle states with ν7/2[633]⊗ν1/2[521] configurations with similar excitation energy. The results suggest that neutron-rich N=100 nuclei are well deformed and the deformation gets larger as Z decreases to 62. The onset of K isomers with the same configuration at almost the same energy in N=100 isotones indicates that the neutron single-particle structures of neutron-rich isotones down to Z=62 do not change significantly from those of the Z=70 stable nuclei. Systematics of the excitation energies of new isomers can be explained without the predicted N=100 shell gap.

Published
2017

142. Identification of a millisecond isomeric state in Cd81129 via the detection of internal conversion and Compton electrons

Author

Taprogge, J., Jungclaus, A., Grawe, H., Nishimura, S., Xu, Z.Y., Doornenbal, P., Lorusso, G., Nácher, E., Simpson, G.S., Söderström, P.-A., Sumikama, T., Baba, H., Browne, F., Fukuda, N., Gernhäuser, R., Gey, G., Inabe, N., Isobe, T., Jung, H.S., Kameda, D., Kim, G.D., Kim, Y.-K., Kojouharov, I., Kubo, T., Kurz, N., Kwon, Y.K., Li, Z., Sakurai, H., Schaffner, H., Steiger, K., Suzuki, H., Takeda, H., Vajta, Zs., Watanabe, H., Wu, J., Yagi, A., Yoshinaga, K., Benzoni, G., Bönig, S., Chae, K.Y., Coraggio, L., Covello, A., Daugas, J.-M., Drouet, F., Gadea, A., Gargano, A., Ilieva, S., Kondev, F.G., Kröll, T., Lane, G.J., Montaner-Pizá, A., Moschner, K., Mücher, D., Naqvi, F., Niikura, M., Nishibata, H., Odahara, A., Orlandi, R., Patel, Z., Podolyák, Zs., and Wendt, A.

Subjects
Nuclear and High Energy Physics
Published
2014
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143. Interaction cross section study of the two-neutron halo nucleus 22C

Author

Togano, Y., Nakamura, T., Kondo, Y., Tostevin, J.A., Saito, A.T., Gibelin, J., Orr, N.A., Achouri, N.L., Aumann, T., Baba, H., Delaunay, F., Doornenbal, P., Fukuda, N., Hwang, J.W., Inabe, N., Isobe, T., Kameda, D., Kanno, D., Kim, S., Kobayashi, N., Kobayashi, T., Kubo, T., Leblond, S., Lee, J., Marqués, F.M., Minakata, R., Motobayashi, T., Murai, D., Murakami, T., Muto, K., Nakashima, T., Nakatsuka, N., Navin, A., Nishi, S., Ogoshi, S., Otsu, H., Sato, H., Satou, Y., Shimizu, Y., Suzuki, H., Takahashi, K., Takeda, H., Takeuchi, S., Tanaka, R., Tuff, A.G., Vandebrouck, M., and Yoneda, K.

Published
2016
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144. Decay spectroscopy of 160Sm: The lightest four-quasiparticle K isomer

Author

Patel, Z., Podolyák, Zs., Walker, P.M., Regan, P.H., Söderström, P.-A., Watanabe, H., Ideguchi, E., Simpson, G.S., Nishimura, S., Browne, F., Doornenbal, P., Lorusso, G., Rice, S., Sinclair, L., Sumikama, T., Wu, J., Xu, Z.Y., Aoi, N., Baba, H., Bello Garrote, F.L., Benzoni, G., Daido, R., Dombrádi, Zs., Fang, Y., Fukuda, N., Gey, G., Go, S., Gottardo, A., Inabe, N., Isobe, T., Kameda, D., Kobayashi, K., Kobayashi, M., Komatsubara, T., Kojouharov, I., Kubo, T., Kurz, N., Kuti, I., Li, Z., Liu, H.L., Matsushita, M., Michimasa, S., Moon, C.-B., Nishibata, H., Nishizuka, I., Odahara, A., Şahin, E., Sakurai, H., Schaffner, H., Suzuki, H., Takeda, H., Tanaka, M., Taprogge, J., Vajta, Zs., Xu, F.R., Yagi, A., and Yokoyama, R.

Published
2016
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145. Extraction of the Landau-Migdal Parameter from the Gamow-Teller Giant Resonance in Sn132

Author

Yasuda, J., primary, Sasano, M., additional, Zegers, R. G. T., additional, Baba, H., additional, Bazin, D., additional, Chao, W., additional, Dozono, M., additional, Fukuda, N., additional, Inabe, N., additional, Isobe, T., additional, Jhang, G., additional, Kameda, D., additional, Kaneko, M., additional, Kisamori, K., additional, Kobayashi, M., additional, Kobayashi, N., additional, Kobayashi, T., additional, Koyama, S., additional, Kondo, Y., additional, Krasznahorkay, A. J., additional, Kubo, T., additional, Kubota, Y., additional, Kurata-Nishimura, M., additional, Lee, C. S., additional, Lee, J. W., additional, Matsuda, Y., additional, Milman, E., additional, Michimasa, S., additional, Motobayashi, T., additional, Muecher, D., additional, Murakami, T., additional, Nakamura, T., additional, Nakatsuka, N., additional, Ota, S., additional, Otsu, H., additional, Panin, V., additional, Powell, W., additional, Reichert, S., additional, Sakaguchi, S., additional, Sakai, H., additional, Sako, M., additional, Sato, H., additional, Shimizu, Y., additional, Shikata, M., additional, Shimoura, S., additional, Stuhl, L., additional, Sumikama, T., additional, Suzuki, H., additional, Tangwancharoen, S., additional, Takaki, M., additional, Takeda, H., additional, Tako, T., additional, Togano, Y., additional, Tokieda, H., additional, Tsubota, J., additional, Uesaka, T., additional, Wakasa, T., additional, Yako, K., additional, Yoneda, K., additional, and Zenihiro, J., additional

Published
2018
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146. β decays of the heaviest N=Z−1 nuclei and proton instability of In97

Author

Park, J., primary, Krücken, R., additional, Lubos, D., additional, Gernhäuser, R., additional, Lewitowicz, M., additional, Nishimura, S., additional, Ahn, D. S., additional, Baba, H., additional, Blank, B., additional, Blazhev, A., additional, Boutachkov, P., additional, Browne, F., additional, Čeliković, I., additional, de France, G., additional, Doornenbal, P., additional, Faestermann, T., additional, Fang, Y., additional, Fukuda, N., additional, Giovinazzo, J., additional, Goel, N., additional, Górska, M., additional, Grawe, H., additional, Ilieva, S., additional, Inabe, N., additional, Isobe, T., additional, Jungclaus, A., additional, Kameda, D., additional, Kim, G. D., additional, Kim, Y.-K., additional, Kojouharov, I., additional, Kubo, T., additional, Kurz, N., additional, Lorusso, G., additional, Moschner, K., additional, Murai, D., additional, Nishizuka, I., additional, Patel, Z., additional, Rajabali, M. M., additional, Rice, S., additional, Sakurai, H., additional, Schaffner, H., additional, Shimizu, Y., additional, Sinclair, L., additional, Söderström, P.-A., additional, Steiger, K., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Wang, Z., additional, Watanabe, H., additional, Wu, J., additional, and Xu, Z. Y., additional

Published
2018
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147. Excitation of the Isovector Spin Monopole Resonance via the Exothermic Zr90(N12,C12) Reaction at 175MeV/u

Author

Noji, S., primary, Sakai, H., additional, Aoi, N., additional, Baba, H., additional, Berg, G. P. A., additional, Doornenbal, P., additional, Dozono, M., additional, Fukuda, N., additional, Inabe, N., additional, Kameda, D., additional, Kawabata, T., additional, Kawase, S., additional, Kikuchi, Y., additional, Kisamori, K., additional, Kubo, T., additional, Maeda, Y., additional, Matsubara, H., additional, Michimasa, S., additional, Miki, K., additional, Miya, H., additional, Miyasako, H., additional, Sakaguchi, S., additional, Sasamoto, Y., additional, Shimoura, S., additional, Takaki, M., additional, Takeda, H., additional, Takeuchi, S., additional, Tokieda, H., additional, Ohnishi, T., additional, Ota, S., additional, Uesaka, T., additional, Wang, H., additional, Yako, K., additional, Yanagisawa, Y., additional, Yokota, N., additional, Yoshida, K., additional, and Zegers, R. G. T., additional

Published
2018
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148. Beta-gamma spectroscopy of the neutron-rich 150Ba

Author

Yokoyama, R, primary, Ideguchi, E, additional, Simpson, G S, additional, Tanaka, Mn, additional, Nishimura, S, additional, Doornenbal, P, additional, Lorusso, G, additional, Söderström, P-A, additional, Sumikama, T, additional, Wu, J, additional, Xu, Z Y, additional, Aoi, N, additional, Baba, H, additional, Bello Garrote, F L, additional, Benzoni, G, additional, Browne, F, additional, Daido, R, additional, Fang, Y, additional, Fukuda, N, additional, Gottardo, A, additional, Gey, G, additional, Go, S, additional, Inabe, N, additional, Isobe, T, additional, Kameda, D, additional, Kobayashi, K, additional, Kobayashi, M, additional, Kojouharov, I, additional, Komatsubara, T, additional, Kubo, T, additional, Kurz, N, additional, Kuti, I, additional, Li, Z, additional, Matsushita, M, additional, Michimasa, S, additional, Moon, C B, additional, Nishibata, H, additional, Nishizuka, I, additional, Odahara, A, additional, Patel, Z, additional, Rice, S, additional, Sahin, E, additional, Sakurai, H, additional, Schaffner, H, additional, Sinclair, L, additional, Suzuki, H, additional, Takeda, H, additional, Taprogge, J, additional, Vajta, Zs, additional, Watanabe, H, additional, Yagi, A, additional, and Inakura, T, additional

Published
2018
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149. Erratum: Properties of γ -decaying isomers and isomeric ratios in the Sn100 region [Phys. Rev. C 96 , 044311 (2017)]

Author

Park, J., primary, Krücken, R., additional, Lubos, D., additional, Gernhäuser, R., additional, Lewitowicz, M., additional, Nishimura, S., additional, Ahn, D. S., additional, Baba, H., additional, Blank, B., additional, Blazhev, A., additional, Boutachkov, P., additional, Browne, F., additional, Čeliković, I., additional, de France, G., additional, Doornenbal, P., additional, Faestermann, T., additional, Fang, Y., additional, Fukuda, N., additional, Giovinazzo, J., additional, Goel, N., additional, Górska, M., additional, Grawe, H., additional, Ilieva, S., additional, Inabe, N., additional, Isobe, T., additional, Jungclaus, A., additional, Kameda, D., additional, Kim, G. D., additional, Kim, Y.-K., additional, Kojouharov, I., additional, Kubo, T., additional, Kurz, N., additional, Lorusso, G., additional, Moschner, K., additional, Murai, D., additional, Nishizuka, I., additional, Patel, Z., additional, Rajabali, M. M., additional, Rice, S., additional, Sakurai, H., additional, Schaffner, H., additional, Shimizu, Y., additional, Sinclair, L., additional, Söderström, P.-A., additional, Steiger, K., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Wang, Z., additional, Watanabe, H., additional, Wu, J., additional, and Xu, Z. Y., additional

Published
2018
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150. Unbound states in 17C probed via single-neutron removal from 18C at 245 MeV/u

Author

Kim, S., primary, Hwang, J. W., additional, Satou, Y., additional, Orr, N. A., additional, Kondo, Y., additional, Nakamura, T., additional, Gibelin, J., additional, Achouri, N. L., additional, Aumann, T., additional, Baba, H., additional, Delaunay, F., additional, Doornenbal, P., additional, Fukuda, N., additional, Inabe, N., additional, Isobe, T., additional, Kameda, D., additional, Kanno, D., additional, Kobayashi, N., additional, Kobayashi, T., additional, Kubo, T., additional, Leblond, S., additional, Lee, J., additional, Marqués, F. M., additional, Minakata, R., additional, Motobayashi, T., additional, Murai, D., additional, Murakami, T., additional, Muto, K., additional, Nakashima, T., additional, Nakatsuka, N., additional, Navin, A., additional, Nishi, S., additional, Ogoshi, S., additional, Otsu, H., additional, Sato, H., additional, Shimizu, Y., additional, Suzuki, H., additional, Takahashi, K., additional, Takeda, H., additional, Takeuchi, S., additional, Tanaka, R., additional, Togano, Y., additional, Tuff, A. G., additional, Vandebrouck, M., additional, and Yoneda, K., additional

Published
2018
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