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1. Xenon-gas ionization chamber to improve particle identification of heavy ion beams with Z>70

Author

Yoshimoto, Masahiro, Fukuda, Naoki, Matsumura, Riku, Nishimura, Daiki, Otsu, Hideaki, Shimizu, Yohei, Sumikama, Toshiyuki, Suzuki, Hiroshi, Takahashi, Hiroyuki, Takeda, Hiroyuki, Tanaka, Junki, and Yoshida, Koichi

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

In conventional ionization chambers (ICs) using P-10 (Ar+CH4) gas, as the atomic number (Z) of the ion beams increases in the energy region of 200-300 MeV/u, the Z resolution deteriorates rapidly when Z>70. This degradation is attributed to substantial energy loss straggling caused by charge state fluctuation when the beams traverse a gas medium. The energy loss straggling increases when the beams cannot attain charge state equilibrium in the IC gas. In this study, a xenon-based gas (Xe+CH4), exhibiting a sufficiently large charge state changing cross section, was used in the IC to reach charge state equilibrium. The responses of ICs with P-10 and the xenon-based gases were examined using 238U beams and cocktail radioactive isotope (RI) beams with Z=40-90 at the RI Beam Factory (RIBF). For 238U beams at 165-344 MeV/u, the P-10 gas IC yielded an energy resolution of 1.9-3.0% in full width at half maximum (FWHM), which proved inadequate for Z identification in the uranium region. In contrast, the xenon-based gas IC demonstrated a satisfactory energy resolution of 1.4-1.6%. When using cocktail RI beams, a Z resolution of 1.28 and 0.74 was achieved by the P-10 and the xenon-based gas ICs, respectively, for beams with Z=84-88 at 200 MeV/u. The contrast in Z resolutions between the P-10 and the xenon-based gas ICs was effectively elucidated by the energy loss straggling model, incorporating collisional straggling and straggling due to charge state changes in the IC gases. The xenon-based gas IC, with more than 3sigma Z separation across a broad Z range (Z=40-90), emerged as a practical solution for Z identification of heavy ion beams., Comment: 24 pages, 13 figures, 1 table

Published
2024

2. Unbound states in 17C and p-sd shell-model interactions

Author

Kim, Sunji, Hwang, Jongwon, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, Nadia Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, Francisco Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-ichiro

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Unbound states in 17C were investigated via one-neutron removal from a 18C beam at an energy of 245 MeV/nucleon on a carbon target. The energy spectrum of 17C, above the single-neutron decay threshold, was reconstructed using invariant mass spectroscopy from the measured momenta of the 16C fragment and neutron, and was found to exhibit resonances at Er=0.52(2), 0.77(2), 1.36(1), 1.91(1), 2.22(3) and 3.20(1) MeV. The resonance at Er=0.77(2) MeV [Ex=1.51(3) MeV] was provisionally assigned as the second 5/2+ state. The two resonances at Er=1.91(1) and 3.20(1) MeV [Ex=2.65(2) and 3.94(2) MeV] were identified, through comparison of the energies, cross sections and momentum distributions with shell-model and eikonal reaction calculations, as p-shell hole states with spin-parities 1/2- and 3/2-, respectively. A detailed comparison was made with the results obtained using a range of shell-model interactions. The YSOX shell-model Hamiltonian, the cross-shell part of which is based on the monopole-based universal interaction, was found to provide a very good description of the present results and those for the neighbouring odd-A carbon isotopes - in particular for the negative parity cross-shell states., Comment: Physics Letters B 836 (2023) 137629, published

Published
2022
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3. Spectroscopy of 17C Above the Neutron Separation Energy

Author

Kim, Sunji, Hwang, Jongwon, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-ichiro

Published
2022
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4. Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon

Author

Ohnishi, Tetsuya, Kubo*, Toshiyuki, Kusaka, Kensuke, Yoshida, Atsushi, Yoshida, Koichi, Ohtake, Masao, Fukuda, Naoki, Takeda, Hiroyuki, Kameda, Daisuke, Tanaka, Kanenobu, Inabe, Naohito, Yanagisawa, Yoshiyuki, Gono, Yasuyuki, Watanabe, Hiroshi, Otsu, Hideaki, Baba, Hidetada, Ichihara, Takashi, Yamaguchi, Yoshitaka, Takechi, Maya, Nishimura, Shunji, Ueno, Hideki, Yoshimi, Akihiro, Sakurai, Hiroyoshi, Motobayashi, Tohru, Nakao, Taro, Mizoi, Yutaka, Matsushita, Masafumi, Ieki, Kazuo, Kobayashi, Nobuyuki, Tanaka, Kana, Kawada, Yosuke, Tanaka, Naoki, Deguchi, Shigeki, Satou, Yoshiteru, Kondo, Yosuke, Nakamura, Takashi, Yoshinaga, Kenta, Ishii, Chihiro, Yoshii, Hideakira, Miyashita, Yuki, Uematsu, Nobuya, Shiraki, Yasutsugu, Sumikama, Toshiyuki, Chiba, Junsei, Ideguchi, Eiji, Saito, Akito, Yamaguchi, Takayuki, Hachiuma, Isao, Suzuki, Takeshi, Moriguchi, Tetsuaki, Ozawa, Akira, Ohtsubo, Takashi, Famiano, Michael A., Geissel, Hans, Nettleton, Anthony S., Tarasov, Oleg B., Bazin, Daniel P., Sherrill, Bradley M., Manikonda, Shashikant L., and Nolen, Jerry A.

Subjects
Nuclear Experiment
Abstract

A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238U beam has been carried out at the RI Beam Factory at the RIKEN Nishina Center. Fission fragments were analyzed and identified by using the superconducting in-flight separator BigRIPS. We observed 45 new neutron-rich isotopes: 71Mn, 73,74Fe, 76Co, 79Ni, 81,82Cu, 84,85Zn, 87Ga, 90Ge, 95Se, 98Br, 101Kr, 103Rb, 106,107Sr, 108,109Y, 111,112Zr, 114,115Nb, 115,116,117Mo, 119,120Tc, 121,122,123,124Ru, 123,124,125,126Rh, 127,128Pd, 133Cd, 138Sn, 140Sb, 143Te, 145I, 148Xe, and 152Ba.

Published
2010
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5. Spallation reaction study for the long-lived fission products in nuclear waste: Cross section measurements for 137Cs, 90Sr and 107Pd using inverse kinematics method

Author

Wang, He, Otsu, Hideaki, Sakurai, Hiroyoshi, Ahn, DeukSoon, Chiga, Nobuyuki, Doornenbal, Pieter, Fukuda, Naoki, Isobe, Tadaaki, Kubo, Toshiyuki, Kubono, Shigeru, Lorusso, Giusseppe, Söderström, Pär-Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Watanabe, Yasushi, Yoshida, Koichi, Matsuzaki, Teiichiro, Shimizu, Yohei, Sumikama, Toshiyuki, Uesaka, Meiko, Kawase, Shoichiro, Nakano, Keita, Watanabe, Yukinobu, Araki, Shouhei, Kin, Tadahiro, Takeuchi, Satoshi, Togano, Yasuhiro, Nakamura, Takashi, Kondo, Yosuke, Ozaki, Tomoyuki, Saito, Atsumi, Tsubota, Junichi, Aikawa, Masayuki, Makinaga, Ayano, Ando, Takashi, Koyama, Shunpei, Momiyama, Satoru, Nagamine, Shunsuke, Niikura, Megumi, Saito, Takeshi, Taniuchi, Ryo, Wimmer, Kathrin, Kawakami, Shunsuke, Maeda, Yukie, Yamamoto, Tatsuya, Shiga, Yoshiaki, Matsushita, Masafumi, Michimasa, Shin’ichiro, and Shimoura, Susumu

Published
2017
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7. Isotope-production cross sections of residual nuclei in proton- and deuteron-induced reactions on 93Zr at 50 MeV/u

Author

Nakano Keita, Watanabe Yukinobu, Kawase Shoichiro, Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Chiga Nobuyuki, Suwa Junki, Sumikama Toshiyuki, Takeuchi Satoshi, Nakamura Takashi, Chikaato Kazuya, Takechi Maya, Koyama Shunpei, Soon Ahn Deuk, Baba Hidetada, Chen Sidong, Cortes Martha Liliana, Doornenbal Pieter, Fukuda Naoki, Hirayama Akihiro, Hosoda Ryohei, Isobe Tadaaki, Kawakami Shunsuke, Kondo Yosuke, Kubono Shigeru, Maeda Yukie, Masuoka Shoichiro, Michimasa Shin’ichiro, Murray Ian, Nakajima Ryo, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Sato Hiromi, Shimizu Yohei, Shimoura Susumu, Soudo Yoshiki, Söderström Pär-Anders, Sun Xiaohui, Suzuki Daisuke, Suzuki Hiroshi, Takeda Hiroyuki, Togano Yasuhiro, Tomai Takato, Yamada Hiroki, Yasuda Masahiro, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

The isotope-production cross sections in p- and d-induced reactions on 93Zr at approximately 50 MeV/nucleon were measured by using the inverse-kinematics method at RIKEN RI Beam Factory. The measured data were compared with the previous experimental 93Zr + p, d at 105 and 209 MeV/nucleon data. This comparison represents that the isotopic distribution of production cross sections at 51 MeV p-induced reaction is appreciably different from those at 105 and 209 MeV. On the other hand, these three data sets show that the shape of isotopic distribution is similar in the case of the d-induced reaction. Also, the measured production cross sections were compared with the theoretical model calculations with Particle and Heavy Ion Transport code System (PHITS) version 3.10 in order to investigate the reproducibility of the models implemented in PHITS. The calculations well reproduced the experimental data even in such low incident energy, while several discrepancies were still seen as in the p- and d-induced reactions at 105 and 209 MeV/nucleon.

Published
2020
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8. Spallation reaction study for long-lived fission products in nuclear waste

Author

Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Ahn DeukSoon, Aikawa Masayuki, Ando Takashi, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Isobe Tadaaki, Kawakami Shunsuke, Kawase Shoichiro, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubono Shigeru, Maeda Yukie, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin ichiro, Momiyama Satoru, Nagamine Shunsuke, Nakamura Takashi, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderstrom Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Takeuchi Satoshi, Taniuchi Ryo, Togano Yasuhiro, Tsubota Junichi, Uesaka Meiko, Watanabe Yasushi, Watanabe Yukinobu, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Spallation reaction for the long-lived fission product 107Pd has been studied for the purpose of nuclear waste transmutation. The isotopic-distribution cross sections on both proton and deuteron were obtained at 118 MeV/nucleon in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. A large cross-section difference was found between the proton and deuteron results for the light-mass products. The data were compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intranuclear cascade and evaporation processes. In addition, the potential of spallation reaction for transmutation of 107Pd is discussed.

Published
2020
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9. Beam commissioning of the SπRIT time projection chamber

Author

Jhang, Genie, Barney, Jon, Estee, Justin, Isobe, Tadaaki, Kaneko, Masanori, Kurata-Nishimura, Mizuki, Cerizza, Giordano, Santamaria, Clementine, Lee, Jung Woo, Lasko, Paweł, Łukasik, Jerzy, Lynch, William G., McIntosh, Alan B., Murakami, Tetsuya, Pawłowski, Piotr, Shane, Rebecca, Tangwancharoen, Suwat, Tsang, Manyee Betty, Baba, Hidetada, Hong, Byungsik, Kim, Young Jin, Lee, Hyo Sang, Otsu, Hideaki, Pelczar, Krzysztof, Sakurai, Hiroyoshi, Suzuki, Daisuke, Xiao, Zhigang, Yennello, Sherry J., Zhang, Yan, and SπRIT Collaboration

Published
2016
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10. 2020年度核データ研究会報告集; 2020年11月26日sim27日, 理化学研究所和光キャンパス, 埼玉県和光市

Author

Imai, Nobuaki and Otsu, Hideaki

Abstract

The 2020 Symposium on Nuclear Data was held on-site at RIBF Conference Hall in RIKEN Wako campus on November 26 to 27, 2020, combined with on-line connection conference. The symposium was organized by the Nuclear Data Division of the Atomic Energy Society of Japan (AESJ) in cooperation with Sigma Investigative Advisory Committee of AESJ, Nuclear Science and Engineering Center of Japan Atomic Energy Agency (JAEA), RIKEN Nishina Center, Center for Nuclear Study, The University of Tokyo (CNS), KEK Wako Nuclear Science Center (WNSC), School of Science, The University of Tokyo. In the symposium, six sessions were proposed and held: "Reactor theory and experiments" as a tutorial, "Accelerator Facilities and Nuclear Data", "Deep/Machine Learning and Nuclear Physics, Application to Nuclear Data", "Nuclear Medicine and Nuclear Pharmacy", "Fission, Heavy Ion Nuclear Spectroscopy", and "Nuclear Reaction Data" as lecture and discussion sessions. In addition, recent research progress on experiments, nuclear theory, evaluation, benchmark and applications were presented in the poster session. The total number of participants was 119, of which 62 were on-site participants. Each oral and poster presentation was followed by an active question and answer session. This report consists of total 40 papers including 15 oral and 25 poster presentations., 2020年度核データ研究会は、2020年11月26日$\sim$27日に、埼玉県和光市にある理化学研究所和光キャンパスのRIBF大会議室にて、オンライン併用の形式で開催された。本研究会は、日本原子力学会核データ部会が主催、日本原子力学会「シグマ」調査専門委員会、日本原子力研究開発機構(原子力機構)原子力基礎工学研究センター、理化学研究所仁科加速器科学研究センター(理研仁科センター)、東京大学原子核科学研究センター(CNS)、高エネルギー加速器研究機構和光原子核科学センター(KEK-WNSC)、東京大学理学部が共催した。今回、チュートリアルとして「原子炉の理論と実験」を、講演・議論のセッションとして、「加速器施設と核データ」、「深層/機械学習と原子核物理、核データへの応用」、「核医学、核薬学」、「核分裂、重イオン核分光」、「原子核反応データ」の5セッションを企画し実施した。さらに、ポスターセッションでは、実験、理論、評価、ベンチマーク、応用等、幅広い研究内容について発表が行われた。参加者総数は119名でそのうち現地参加は62名であった。それぞれの口頭発表及びポスター発表では活発な質疑応答が行われた。本報告集は、本研究会における口頭発表15件、ポスター発表25件の論文を掲載している。

Published
2022

11. Nuclear structure study for the neutron-rich nuclei beyond 132Sn: In-beam gamma-ray spectroscopy of 136Sn and 132Cd

Author

Wang He, Aoi Nori, Takeuchi Satoshi, Matsushita Masafumi, Doornenbal Pieter, Motobayashi Tohru, Steppenbeck David, Yoneda Kenichiro, Baba Hidetada, Dombrádi Zsolt, Kobayashi Kota, Kondo Yosuke, Lee Jenny, Liu Hong-Na, Minakata Ryogo, Nishimura Daiki, Otsu Hideaki, Sakurai Hiroyoshi, Sohler Dora, Sun Ye-Lei, Tian Zheng-Yang, Tanaka Ryuki, Vajta Zsolt, Yang Zai-Hong, Yamamoto Tetsuya, Ye Yan-Lin, and Yokoyama Rin

Subjects
Physics, QC1-999
Abstract

The neutron-rich nuclei 136Sn and 132Cd have been studied in the purpose of nuclear structure for the nuclei beyond the doubly-magic nucleus 132Sn. The 2+1 → 0+ gs transitions were identified for these two nuclei using in-beam γ-ray spectroscopy in coincidence with one- and two-proton removal reactions, respectively, at the RIKEN Radioactive Isotope Beam Factory. The 2+ 1 state in 136Sn is found to be similar to that for 134Sn indicating the seniority scheme may also hold for the heavy tin isotopes beyond N = 82. For 132Cd, the 2+ 1 state provides the first spectroscopic information in the even-even nuclei locating in the region “southeast” of 132Sn and the result is discussed in terms of proton-neutron configuration mixing. In both these two nuclei, it was found that the valence neutrons play an essential role in their low-lying excitations.

Published
2018
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12. Spectroscopy of $$^\mathbf{17}$$C Above the Neutron Separation Energy

Author

Kim, Sunji, primary, Hwang, Jongwon, additional, Satou, Yoshiteru, additional, Orr, Nigel A., additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Gibelin, Julien, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2022
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14. Cross sections for nuclide production in proton- and deuteron-induced reactions on 93Nb measured using the inverse kinematics method

Author

Nakano Keita, Watanabe Yukinobu, Kawase Shoichiro, Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Takeuchi Satoshi, Togano Yasuhiro, Nakamura Takashi, Maeda Yukie, Ahn Deuk Soon, Aikawa Masayuki, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Ichihara Takashi, Isobe Tadaaki, Kawakami Shunsuke, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubo Toshiyuki, Kubono Shigeru, Kurokawa Meiko, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin'ichiro, Momiyama Satoru, Nagamine Shunsuke, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Taniuchi Ryo, Tsubota Jun'ichi, Watanabe Yasushi, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Isotopic production cross sections were measured for proton- and deuteron-induced reactions on 93Nb by means of the inverse kinematics method at RIKEN Radioactive Isotope Beam Factory. The measured production cross sections of residual nuclei in the reaction 93Nb + p at 113 MeV/u were compared with previous data measured by the conventional activation method in the proton energy range between 46 and 249 MeV. The present inverse kinematics data of four reaction products (90Mo, 90Nb, 88Y, and 86Y) were in good agreement with the data of activation measurement. Also, the model calculations with PHITS describing the intra-nuclear cascade and evaporation processes generally well reproduced the measured isotopic production cross sections.

Published
2017
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15. Dipole strength in 80Se below the neutron-separation energy for the nuclear transmutation of 79Se

Author

Makinaga Ayano, Massarczyk Ralph, Beard Mary, Schwengner Ronald, Otsu Hideaki, Müller Stefan, Röder Marko, Schmidt Konrad, and Wagner Andreas

Subjects
Physics, QC1-999
Abstract

The γ-ray strength function (γSF) in 80Se is an important parameter to estimate the neutron-capture cross section of 79Se which is one of the long-lived fission products (LLFPs). Until now, the γSF method was applied for 80Se only above the neutron-separation energy (Sn) and the evaluated 79Se(n,γ) cross section has an instability caused by the GSF below Sn. We studied the dipole-strength distribution of 80Se in a photon-scattering experiment using bremsstrahlung produced by an electron beam of an energy of 11.5 MeV at the linear accelerator ELBE at HZDR. The present photoabsorption cross section of 80Se was combined with results of (γ,n) experiments and are compared with predictions usinmg the TALYS code. We also estimated the 79Se(n,γ) cross sections and compare them with TALYS predictionms and earlier work by other groups.

Published
2017
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16. Cross section measurement of residues produced in proton- and deuteron-induced spallation reactions on 93Zr at 105 MeV/u using the inverse kinematics method

Author

Kawase Shoichiro, Watanabe Yukinobu, Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Takeuchi Satoshi, Togano Yasuhiro, Nakamura Takashi, Maeda Yukie, Ahn Deuk Soon, Aikawa Masayuki, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Ichihara Takashi, Isobe Tadaaki, Kawakami Shunsuke, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubo Toshiyuki, Kubono Shigeru, Kurokawa Meiko, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin'ichiro, Momiyama Satoru, Nagamine Shunsuke, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Taniuchi Ryo, Tsubota Jun'ichi, Watanabe Yasushi, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Isotopic production cross sections in the proton- and deuteron-induced spallation reactions on 93Zr at an energy of 105 MeV/u were measured in inverse kinematics conditions for the development of realistic nuclear transmutation processes for long-lived fission products (LLFPs) with neutron and light-ion beams. The experimental results were compared to the PHITS calculations describing the intra-nuclear cascade and evaporation processes. Although an overall agreement was obtained, a large overestimation of the production cross sections for the removal of a few nucleons was seen. A clear shell effect associated with the neutron magic number N = 50 was observed in the measured isotopic production yields of Zr and Y isotopes, which can be reproduced reasonably by the PHITS calculation.

Published
2017
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17. Spallation reaction study for fission products in nuclear waste: Cross section measurements for 137Cs, 90Sr and 107Pd on proton and deuteron

Author

Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Ahn DeukSoon, Aikawa Masayuki, Ando Takashi, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Isobe Tadaaki, Kawakami Shunsuke, Kawase Shoichiro, Kin Tadahiro, Kondo Yosuke, Koyama Shupei, Kubono Shigeru, Maeda Yukie, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shinichiro, Momiyama Satoru, Nagamine Shunsuke, Nakamura Takashi, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Takeuchi Satoshi, Taniuchi Ryo, Togano Yasuhiro, Tsubota Junichi, Uesaka Meiko, Watanabe Yasushi, Watanabe Yukinobu, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Spallation reactions for the long-lived fission products 137Cs, 90Sr and 107Pd have been studied for the purpose of nuclear waste transmutation. The cross sections on the proton- and deuteron-induced spallation were obtained in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Both the target and energy dependences of cross sections have been investigated systematically. and the cross-section differences between the proton and deuteron are found to be larger for lighter fragments. The experimental data are compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intra-nuclear cascade and evaporation processes.

Published
2017
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19. Study of 19C by One-Neutron Knockout

Author

Hwang Jongwon, Kim Sunji, Satou Yoshiteru, Orr Nigel A., Nakamura Takashi, Kondo Yosuke, Gibelin Julien, Achouri N. Lynda, Aumann Thomas, Baba Hidetada, Delaunay Franck, Doornenbal Pieter, Fukuda Naoki, Inabe Naohito, Isobe Tadaaki, Kameda Daisuke, Kanno Daiki, Kobayashi Nobuyuki, Kobayashi Toshio, Kubo Toshiyuki, Leblond Sylvain, Lee Jenny, Marqués F. Miguel, Minakata Ryogo, Motobayashi Tohru, Murai Daichi, Murakami Tetsuya, Muto Kotomi, Nakashima Tomohiro, Nakatsuka Noritsugu, Navin Alahari, Nishi Seijiro, Ogoshi Shun, Otsu Hideaki, Sato Hiromi, Shimizu Yohei, Suzuki Hiroshi, Takahashi Kento, Takeda Hiroyuki, Takeuchi Satoshi, Tanaka Ryuki, Togano Yasuhiro, Tuff Adam G., Vandebrouck Marine, and Yoneda Ken-ichiro

Subjects
Physics, QC1-999
Abstract

The spectroscopic structure of 19C, a prominent one-neutron halo nucleus, has been studied with a 20C secondary beam at 290 MeV/nucleon and a carbon target. Neutron-unbound states populated by the one-neutron knockout reaction were investigated by means of the invariant mass method. The preliminary relative energy spectrum and parallel momentum distribution of the knockout residue, 19C*, were reconstructed from the measured four momenta of the 18C fragment, neutron, and beam. Three resonances were observed in the spectrum, which correspond to the states at Ex = 0.62(9), 1.42(10), and 2.89(10) MeV. The parallel momentum distributions for the 0.62-MeV and 2.89-MeV states suggest spin-parity assignments of 5/2+ and 1/2−, respectively. The 1.42-MeV state is in line with the reported 5/22+ state.

Published
2016
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20. Spectroscopy of 17C via one-neutron knockout reaction

Author

Kim Sunji, Hwang Jongwon, Satou Yoshiteru, Orr Nigel A., Nakamura Takashi, Kondo Yosuke, Gibelin Julien, Achouri N. Lynda, Aumann Thomas, Baba Hidetada, Delaunay Franck, Doornenbal Pieter, Fukuda Naoki, Inabe Naohito, Isobe Tadaaki, Kameda Daisuke, Kanno Daiki, Kobayashi Nobuyuki, Kobayashi Toshio, Kubo Toshiyuki, Leblond Sylvain, Lee Jenny, Marqués F. Miguel, Minakata Ryogo, Motobayashi Tohru, Murai Daichi, Murakami Tetsuya, Muto Kotomi, Nakashima Tomohiro, Nakatsuka Noritsugu, Navin Alahari, Nishi Seijiro, Ogoshi Shun, Otsu Hideaki, Sato Hiromi, Shimizu Yohei, Suzuki Hiroshi, Takahashi Kento, Takeda Hiroyuki, Takeuchi Satoshi, Tanaka Ryuki, Togano Yasuhiro, Tuff Adam G., Vandebrouck Marine, and Yoneda Ken-ichiro

Subjects
Physics, QC1-999
Abstract

A spectroscopic study of 17C was performed via the one-neutron knockout reaction of 18C on a carbon target at RIKEN-RIBF. Three unbound states at excitation energies of 2.66(2), 3.16(5), and 3.97(3) MeV (preliminary) were observed. The energies are compared with shell-model calculations and existing measurements to deduce their spin-parities. From the comparison, the states at 2.66(2) and 3.97(3) MeV are suggested to be 1/2− and 3/2−, respectively. From its decay property, the state at 3.16(5) MeV is indicated to be 9/2+.

Published
2016
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22. Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb 93 at 113 MeV/nucleon

Author

Nakano, Keita, Watanabe, Yukinobu, Kawase, Shoichiro, Wang, He, Otsu, Hideaki, Sakurai, Hiroyoshi, Takeuchi, Satoshi, Togano, Yasuhiro, Nakamura, Takashi, Maeda, Yukie, Ahn, Deuk Soon, Aikawa, Masayuki, Araki, Shouhei, Chen, Sidong, Chiga, Nobuyuki, Doornenbal, Pieter, Fukuda, Naoki, Ichihara, Takashi, Isobe, Tadaaki, Kawakami, Shunsuke, Kin, Tadahiro, Kondo, Yosuke, Koyama, Shunpei, Kubo, Toshiyuki, Kubono, Shigeru, Uesaka, Meiko, Makinaga, Ayano, Matsushita, Masafumi, Matsuzaki, Teiichiro, Michimasa, Shin'ichiro, Momiyama, Satoru, Nagamine, Shunsuke, Niikura, Megumi, Ozaki, Tomoyuki, Saito, Atsumi, Saito, Takeshi, Shiga, Yoshiaki, Shikata, Mizuki, Shimizu, Yohei, Shimoura, Susumu, Sumikama, Toshiyuki, Söderström, Pär Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Taniuchi, Ryo, Tsubota, Jun'ichi, Watanabe, Yasushi, Wimmer, Kathrin, Yamamoto, Tatsuya, and Yoshida, Koichi

Abstract

Isotope-production cross sections for p-, d-, and C-induced spallation reactions on Nb93 at 113 MeV/nucleon were measured using the inverse-kinematics method employing secondary targets of CH2, CD2, and C. The measured cross sections for Mo90, Nb90, Y86,88 produced by p-induced reactions were found to be consistent with those measured by the conventional activation method. We performed benchmark tests of the reaction models INCL-4.6, JQMD, and JQMD-2.0 implemented in the Particle and Heavy Ion Transport code System (PHITS) and of the nuclear data libraries JENDL-4.0/HE, TENDL-2017, and ENDF/B-VIII.0. The model calculations also showed generally good agreement with the measured isotope-production cross sections for p-, d-, and C-induced reactions. It also turns out that, among the three nuclear data libraries, JENDL-4.0/HE provides the best agreement with the measured data for the p-induced reactions. We compared the present Nb93 data with the Zr93 data, that were measured previously by the same inverse kinematics method (Kawase et al., Prog. Theor. Exp. Phys. 2017, 093D03 (2017)2050-391110.1093/ptep/ptx110), with particular attention to the effect of neutron-shell closure on isotope production in p- and d-induced spallation reactions. The isotopic distributions of the measured production cross sections in the Zr93 data showed noticeable jumps at neutron number N=50 in the isotopic chains of ΔZ=0 and -1, whereas no such jump appeared in isotopic chain of ΔZ=0 in the Nb93 data. From INCL-4.6 + GEM calculations, we found that the jump formed in the evaporation process is smeared out by the intranuclear cascade component in Nb91 produced by the Nb93(p,p2n) and (d,d2n) reactions on Nb93. Moreover, for Nb93, the distribution of the element-production cross sections as a function of the change in proton number ΔZ is shifted to smaller ΔZ than for Zr93, because the excited Nb prefragments generated by the cascade process are more likely to emit protons than the excited Zr prefragments, due to the smaller proton-separation energies of the Nb isotopes.

Published
2019

23. Coulomb breakup reactions of 93,94 Zr in inverse kinematics

Author

Takeuchi, Satoshi, Nakamura, Takashi, Shikata, Mizuki, Togano, Yasuhiro, Kondo, Yosuke, Tsubota, Junichi, Ozaki, Tomoyuki, Saito, Atsumi, Otsu, Hideaki, Wang, He, Sakurai, Hiroyoshi, Watanabe, Yukinobu, Kawase, Shoichiro, Ahn, Deuk Soon, Aikawa, Masayuki, Ando, Takashi, Araki, Shohei, Chen, Sidong, Chiga, Nobuyuki, Doornenbal, Pieter, Ebata, Shuichiro, Fukuda, Naoki, Isobe, Tadaaki, Kawakami, Shunsuke, Kin, Tadahiro, Koyama, Shunpei, Kubono, Shigeru, Maeda, Yukie, Makinaga, Ayano, Matsushita, Masafumi, Matsuzaki, Teiichiro, Michimasa, Shin'ichiro, Momiyama, Satoru, Nagamine, Shunsuke, Nakano, Keita, Niikura, Megumi, Ogata, Kazuyuki, Saito, Takeshi, Shiga, Yoshiaki, Shimizu, Yohei, Shimoura, Susumu, Sumikama, Toshiyuki, Söderstrom, Pär Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Taniuchi, Ryo, Uesaka, Meiko, Watanabe, Yasushi, Wimmer, Kathrin, Yamamoto, Tatsuya, and Yoshida, Koichi

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

Coulomb breakup reactions of 93,94 Zr have been studied in inverse kinematics at incident beam energies of about 200 MeV/nucleon in order to evaluate neutron capture reaction methods. The 93 Zr(n,γ) 94 Zr reaction is particularly important as a candidate nuclear transmutation reaction for the long-lived fission product 93 Zr in nuclear power plants. One- and two-neutron removal cross sections on Pb and C targets were measured to deduce the inclusive Coulomb breakup cross sections, 375 ± 29 (stat.) ± 30 (syst.) and 403 ± 26 (stat.) ± 31 (syst.) mb for 93 Zr and 94 Zr, respectively. The results are compared with estimates using the standard Lorentzian model and microscopic calculations. The results reveal a possible contribution of the pygmy dipole resonance or giant quadrupole resonance in the Coulomb breakup reactions of 94 Zr.

Published
2019

24. カルシウム以下のN=32殻閉殻; 50Arの低励起構造

Author

Cort\'es, M. L., Rodriguez, W., Doornenbal, P., Obertelli, A., Holt, J. D., Men\'endez, J., Ogata, Kazuyuki, Schwenk, A., Shimizu, Noritaka, Simonis, J., Utsuno, Yutaka, Yoshida, Kazuki, Achouri, L., Baba, Hidetada, Browne, F., Calvet, D., Ch\^ateau, F., Chen, S., Chiga, Nobuyuki, Corsi, A., Delbart, A., Gheller, J.-M., Giganon, A., Gillibert, A., Hilaire, C., Isobe, Tadaaki, Kobayashi, Takeo, Kubota, Yuki, Lapoux, V., Liu, H. N., Motobayashi, Toru, Murray, I., Otsu, Hideaki, Panin, V., Paul, N., Sakurai, Hiroyoshi, Sasano, Masaki, Steppenbeck, D., Stuhl, L., Sun, Y. L., Togano, Yasuhiro, Uesaka, Tomohiro, Wimmer, K., Yoneda, Kenichiro, Aktas, O., Aumann, T., Chung, L. X., Flavigny, F., Franchoo, S., Ga\v{s}pari\'c, I., Gerst, R.-B., Gibelin, J., Hahn, K. I., Kim, D., Koiwai, Takuma, Kondo, Yosuke, Koseoglou, P., Lee, J., Lehr, C., Linh, B. D., Lokotko, T., MacCormick, M., Moschner, K., Nakamura, Takashi, Park, S. Y., Rossi, D., Sahin, E., S\\\'oderstr\\\'om, P.-A., Sohler, D., Takeuchi, Satoshi, Toernqvist, H., Vaquero, V., Wagner, V., Wang, S., Werner, V., Xu, X., Yamada, Hiroki, Yan, D., Yang, Z., Yasuda, Masahiro, and Zanetti, L.

Abstract

Low-lying excited states in the $N$ = 32 isotope $^{50}$Ar were investigated by in-beam $\gamma$-ray spectroscopy following proton- and neutron-knockout, multinucleon removal, and proton inelastic scattering at the RIKEN Radioactive Isotope Beam Factory. The energies of the two previously reported transitions have been confirmed, and five additional states are presented for the first time, including a candidate for a 3$^{-}$ state. The level scheme built using $\gamma$ $\gamma$ coincidences was compared to shell-model calculations in the $sd-pf$ model space and to {\it ab initio} predictions based on chiral two- and three-nucleon interactions. Theoretical proton- and neutron-knockout cross sections suggest that two of the new transitions correspond to 2$^{+}$ states, while the previously proposed 4$^{+}_{1}$ state could also correspond to a 2$^{+}$ state., 理化学研究所RIBFにおいて、$N$=32同位体である$^{50}$Arの低励起構造を陽子・中性子ノックアウト反応,多核子剥離反応,陽子非弾性散乱と$\gamma$線分光によって調査した。すでに知られていた2つに加えて、3$^{-}$状態の候補を含む5つの状態を新たに確認した。$\gamma$ $\gamma$ coincidenceによって得られた準位図は$sd-pf$模型空間での殻模型計算やカイラル2体・3体力による第一原理計算と比較した。陽子・中性子ノックアウト反応断面積の理論との比較により、新たに発見された2つの状態は2$^{+}$状態であり、また以前に4$^{+}_{1}$とされていた状態も2$^{+}$であることが示唆された。

Published
2020

25. Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb93 at 113 MeV/nucleon

Author

Nakano, Keita, primary, Watanabe, Yukinobu, additional, Kawase, Shoichiro, additional, Wang, He, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Takeuchi, Satoshi, additional, Togano, Yasuhiro, additional, Nakamura, Takashi, additional, Maeda, Yukie, additional, Ahn, Deuk Soon, additional, Aikawa, Masayuki, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Ichihara, Takashi, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Uesaka, Meiko, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Taniuchi, Ryo, additional, Tsubota, Jun'ichi, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2019
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26. Angle-tunable wedge degrader for an energy-degrading RI beamline

Author

Hwang, Jongwon, primary, Michimasa, Shin’ichiro, additional, Ota, Shinsuke, additional, Dozono, Masanori, additional, Imai, Nobuaki, additional, Yoshida, Koichi, additional, Yanagisawa, Yoshiyuki, additional, Kusaka, Kensuke, additional, Ohtake, Masao, additional, Ahn, Deuk Soon, additional, Beliuskina, Olga, additional, Fukuda, Naoki, additional, Iwamoto, Chihiro, additional, Kawase, Shoichiro, additional, Kawata, Keita, additional, Kitamura, Noritaka, additional, Masuoka, Shoichiro, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Schrock, Philipp, additional, Sumikama, Toshiyuki, additional, Suzuki, Hiroshi, additional, Takaki, Motonobu, additional, Takeda, Hiroyuki, additional, Tsunoda, Rieko, additional, Wimmer, Kathrin, additional, Yako, Kentaro, additional, and Shimoura, Susumu, additional

Published
2019
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27. OEDO, the energy-degrading beamline at RI Beam Factory

Author

Michimasa, Shin’ichiro, primary, Hwang, Jongwon, additional, Yamada, Kazunari, additional, Ota, Shinsuke, additional, Dozono, Masanori, additional, Imai, Nobuaki, additional, Yoshida, Koichi, additional, Yanagisawa, Yoshiyuki, additional, Kusaka, Kensuke, additional, Ohtake, Masao, additional, Matsushita, Masafumi, additional, Ahn, Deuk Soon, additional, Beliuskina, Olga, additional, Chiga, Nobuyuki, additional, Chikaato, Kazuya, additional, Fukuda, Naoki, additional, Hayakawa, Seiya, additional, Ideguchi, Eiji, additional, Iribe, Kotaro, additional, Iwamoto, Chihiro, additional, Kawase, Shoichiro, additional, Kawata, Keita, additional, Kitamura, Noritaka, additional, Masuoka, Shoichiro, additional, Miyatake, Hiroari, additional, Nagae, Daisuke, additional, Nakajima, Ryo, additional, Nakamura, Takashi, additional, Nakano, Keita, additional, Omika, Shunichiro, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Schrock, Philipp, additional, Shimizu, Hideki, additional, Shimizu, Yohei, additional, Sumikama, Toshiyuki, additional, Sun, Xiaohui, additional, Suzuki, Daisuke, additional, Suzuki, Hiroshi, additional, Takaki, Motonobu, additional, Takechi, Maya, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Teranishi, Takashi, additional, Tsunoda, Rieko, additional, Wang, He, additional, Watanabe, Yukinobu, additional, Watanabe, Yutaka X., additional, Wimmer, Kathrin, additional, Yako, Kentaro, additional, Yamaguchi, Hidetoshi, additional, Yang, Lei, additional, Yoshida, Hiroya, additional, and Shimoura, Susumu, additional

Published
2019
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28. Coulomb breakup reactions of 93,94Zr in inverse kinematics

Author

Takeuchi, Satoshi, primary, Nakamura, Takashi, additional, Shikata, Mizuki, additional, Togano, Yasuhiro, additional, Kondo, Yosuke, additional, Tsubota, Junichi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Otsu, Hideaki, additional, Wang, He, additional, Sakurai, Hiroyoshi, additional, Watanabe, Yukinobu, additional, Kawase, Shoichiro, additional, Ahn, DeukSoon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shohei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Ebata, Shuichiro, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin’ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakano, Keita, additional, Niikura, Megumi, additional, Ogata, Kazuyuki, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderstrom, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Taniuchi, Ryo, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2019
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29. Spallation reaction study for the long-lived fission products in nuclear waste: Cross section measurements for 137 Cs, 90 Sr and 107 Pd using inverse kinematics method

Author

Wang, He, primary, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, DeukSoon, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Lorusso, Giusseppe, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Watanabe, Yasushi, additional, Yoshida, Koichi, additional, Matsuzaki, Teiichiro, additional, Shimizu, Yohei, additional, Sumikama, Toshiyuki, additional, Uesaka, Meiko, additional, Kawase, Shoichiro, additional, Nakano, Keita, additional, Watanabe, Yukinobu, additional, Araki, Shouhei, additional, Kin, Tadahiro, additional, Takeuchi, Satoshi, additional, Togano, Yasuhiro, additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Tsubota, Junichi, additional, Aikawa, Masayuki, additional, Makinaga, Ayano, additional, Ando, Takashi, additional, Koyama, Shunpei, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Niikura, Megumi, additional, Saito, Takeshi, additional, Taniuchi, Ryo, additional, Wimmer, Kathrin, additional, Kawakami, Shunsuke, additional, Maeda, Yukie, additional, Yamamoto, Tatsuya, additional, Shiga, Yoshiaki, additional, Matsushita, Masafumi, additional, Michimasa, Shin’ichiro, additional, and Shimoura, Susumu, additional

Published
2017
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30. Spectroscopy of ¹⁷C via one-neutron knockout reaction

Author

Kim, Sunji, Hwang, Jongwon, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-Ichiro

Abstract

A spectroscopic study of ¹⁷C was performed via the one-neutron knockout reaction of ¹⁸C on a carbon target at RIKEN-RIBF. Three unbound states at excitation energies of 2.66(2), 3.16(5), and 3.97(3) MeV (preliminary) were observed. The energies are compared with shell-model calculations and existing measurements to deduce their spin-parities. From the comparison, the states at 2.66(2) and 3.97(3) MeV are suggested to be 1/2⁻ and 3/2⁻, respectively. From its decay property, the state at 3.16(5) MeV is indicated to be 9/2⁺., 21st International Conference on Few-Body Problems in Physics, Chicago, IL, USA, May 18-22, 2015.

Published
2016

31. Study of ¹⁹C by One-Neutron Knockout

Author

Hwang, Jongwon, Kim, Sunji, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-Ichiro

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The spectroscopic structure of ¹⁹C, a prominent one-neutron halo nucleus, has been studied with a ²⁰C secondary beam at 290 MeV/nucleon and a carbon target. Neutron-unbound states populated by the one-neutron knockout reaction were investigated by means of the invariant mass method. The preliminary relative energy spectrum and parallel momentum distribution of the knockout residue, ¹⁹C∗, were reconstructed from the measured four momenta of the¹⁸C fragment, neutron, and beam. Three resonances were observed in the spectrum, which correspond to the states at Ex = 0.62(9), 1.42(10), and 2.89(10) MeV. The parallel momentum distributions for the 0.62-MeV and 2.89-MeV states suggest spin-parity assignments of 5/2⁺ and 1/2⁻, respectively. The 1.42-MeV state is in line with the reported 5/22⁺ state., 21st International Conference on Few-Body Problems in Physics, Chicago, IL, USA, May 18-22, 2015.

Published
2016

32. Investigating nuclear shell structure in the vicinity of 78Ni: Low-lying excited states in the neutron-rich isotopes 80,82Zn

Author

Shiga, Yoshiaki, Yoneda, K., Steppenbeck, David, Aoi, Nori, Doornenbal, Pieter, Lee, J., Liu, H., Matsushita, Masafumi, Takeuchi, Satoshi, Wang, H., Baba, H., Bednarczyk, Piotr, Dombrádi, Zsolt, Fülöp, Zs., Go, Shintaro, Hashimoto, Takashi, Honma, M., Ideguchi, Eiji, Ieki, Kazuo, Kobayashi, K., Kondo, Yosuke, Minakata, Ryogo, Motobayashi, Tohru, Nishimura, Daiki, Otsuka, T., Otsu, Hideaki, Sakurai, H., Shimizu, N., Sohler, Dóra, Sun, Y., Tamii, Atsushi, Tanaka, Ryuki, Tian, Z., Tsunoda, Y., Vajta, Zsolt, Yamamoto, Tetsuya, Yang, X., Yang, Z., Ye, Y., Yokoyama, Rin, and Zenihiro, Juzo

Subjects
Természettudományok, Fizikai tudományok
Abstract

LB

Published
2016

33. Study of proton- and deuteron-induced spallation reactions on the long-lived fission product 93Zr at 105 MeV/nucleon in inverse kinematics

Author

Kawase, Shoichiro, primary, Nakano, Keita, additional, Watanabe, Yukinobu, additional, Wang, He, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, Deuk Soon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakamura, Takashi, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Taniuchi, Ryo, additional, Togano, Yasuhiro, additional, Tsubota, Jun'ichi, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2017
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35. Spallation reaction study for the long-lived fission product 107Pd

Author

Wang, He, primary, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, DeukSoon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Nobuyuki, Chiga, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kawase, Shoichiro, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakamura, Takashi, additional, Nakano, Keita, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Taniuchi, Ryo, additional, Togano, Yasuhiro, additional, Tsubota, Junichi, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Watanabe, Yukinobu, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2017
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36. Spectroscopy of ¹⁷C via one-neutron knockout reaction

Author

50219896, Kim, Sunji, Hwang, Jongwon, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, Yoneda, Ken-Ichiro, 50219896, Kim, Sunji, Hwang, Jongwon, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-Ichiro

Abstract

A spectroscopic study of ¹⁷C was performed via the one-neutron knockout reaction of ¹⁸C on a carbon target at RIKEN-RIBF. Three unbound states at excitation energies of 2.66(2), 3.16(5), and 3.97(3) MeV (preliminary) were observed. The energies are compared with shell-model calculations and existing measurements to deduce their spin-parities. From the comparison, the states at 2.66(2) and 3.97(3) MeV are suggested to be 1/2⁻ and 3/2⁻, respectively. From its decay property, the state at 3.16(5) MeV is indicated to be 9/2⁺.

Published
2016

37. Study of ¹⁹C by One-Neutron Knockout

Author

50219896, Hwang, Jongwon, Kim, Sunji, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, Yoneda, Ken-Ichiro, 50219896, Hwang, Jongwon, Kim, Sunji, Satou, Yoshiteru, Orr, Nigel A., Nakamura, Takashi, Kondo, Yosuke, Gibelin, Julien, Achouri, N. Lynda, Aumann, Thomas, Baba, Hidetada, Delaunay, Franck, Doornenbal, Pieter, Fukuda, Naoki, Inabe, Naohito, Isobe, Tadaaki, Kameda, Daisuke, Kanno, Daiki, Kobayashi, Nobuyuki, Kobayashi, Toshio, Kubo, Toshiyuki, Leblond, Sylvain, Lee, Jenny, Marqués, F. Miguel, Minakata, Ryogo, Motobayashi, Tohru, Murai, Daichi, Murakami, Tetsuya, Muto, Kotomi, Nakashima, Tomohiro, Nakatsuka, Noritsugu, Navin, Alahari, Nishi, Seijiro, Ogoshi, Shun, Otsu, Hideaki, Sato, Hiromi, Shimizu, Yohei, Suzuki, Hiroshi, Takahashi, Kento, Takeda, Hiroyuki, Takeuchi, Satoshi, Tanaka, Ryuki, Togano, Yasuhiro, Tuff, Adam G., Vandebrouck, Marine, and Yoneda, Ken-Ichiro

Abstract

The spectroscopic structure of ¹⁹C, a prominent one-neutron halo nucleus, has been studied with a ²⁰C secondary beam at 290 MeV/nucleon and a carbon target. Neutron-unbound states populated by the one-neutron knockout reaction were investigated by means of the invariant mass method. The preliminary relative energy spectrum and parallel momentum distribution of the knockout residue, ¹⁹C∗, were reconstructed from the measured four momenta of the¹⁸C fragment, neutron, and beam. Three resonances were observed in the spectrum, which correspond to the states at Ex = 0.62(9), 1.42(10), and 2.89(10) MeV. The parallel momentum distributions for the 0.62-MeV and 2.89-MeV states suggest spin-parity assignments of 5/2⁺ and 1/2⁻, respectively. The 1.42-MeV state is in line with the reported 5/22⁺ state.

Published
2016

38. Collectivity of neutron-rich Cr and Fe toward N=50

Author

Werner, Volker, Santamaria, C., Louchart, C., Obertelli, Alexandre, Doornenbal, Pieter, Nowacki, Frédéric, Authelet, Gilles, Baba, Hidetada, Calvet, Denis, Château, F., Corsi, Anna, Delbart, Alain, Gheller, Jean-Marc, Gillibert, Alain, Isobe, Tadaaki, Lapoux, Valérie, Matsushita, M., Momiyama, S., Motobayashi, Tohru, Niikura, Megumi, Otsu, Hideaki, Péron, Cedric, Peyaud, Alan, Pollacco, Emanuel C., Roussé, Jean-Yves Andre, Sakurai, Hiroyoshi, Sasano, Masaki, Shiga, Y., Takeuchi, Satoshi, Taniuchi, Ryo, Uesaka, Tomohiro, Wang, Haohao, Yoneda, Ken-ichiro, Browne, Frank, Chung, L.X., Dombrádi, Zsolt, Franchoo, Serge, Giacoppo, F., Gottardo, A., Hadyńska-Kęk, Katarzyna, Korkulu, Zeren, Koyama, Shunpei, Kubota, Yuichi, Lee, J., Lettmann, Marc, Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, Shunji, Olivier, L., Ota, S., Patel, Z., Pietralla, Norbert, Sahin, E., Shand, C., Söderström, Pär-Anders, Stefan, I., Steppenbeck, David, Sumikama, Toshiyuki, Suzuki, Daisuke, Vajta, Zs., Wu, J., Xu, Z., Werner, Volker, Santamaria, C., Louchart, C., Obertelli, Alexandre, Doornenbal, Pieter, Nowacki, Frédéric, Authelet, Gilles, Baba, Hidetada, Calvet, Denis, Château, F., Corsi, Anna, Delbart, Alain, Gheller, Jean-Marc, Gillibert, Alain, Isobe, Tadaaki, Lapoux, Valérie, Matsushita, M., Momiyama, S., Motobayashi, Tohru, Niikura, Megumi, Otsu, Hideaki, Péron, Cedric, Peyaud, Alan, Pollacco, Emanuel C., Roussé, Jean-Yves Andre, Sakurai, Hiroyoshi, Sasano, Masaki, Shiga, Y., Takeuchi, Satoshi, Taniuchi, Ryo, Uesaka, Tomohiro, Wang, Haohao, Yoneda, Ken-ichiro, Browne, Frank, Chung, L.X., Dombrádi, Zsolt, Franchoo, Serge, Giacoppo, F., Gottardo, A., Hadyńska-Kęk, Katarzyna, Korkulu, Zeren, Koyama, Shunpei, Kubota, Yuichi, Lee, J., Lettmann, Marc, Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, Shunji, Olivier, L., Ota, S., Patel, Z., Pietralla, Norbert, Sahin, E., Shand, C., Söderström, Pär-Anders, Stefan, I., Steppenbeck, David, Sumikama, Toshiyuki, Suzuki, Daisuke, Vajta, Zs., Wu, J., and Xu, Z.

Abstract

Within the SEASTAR project at RIKEN-RIBF, 66Cr and 70,72Fe have been produced via protonknockout reactions, and their first excited 2+ and 4+ states have been discovered. The combination of the liquid-hydrogen target and TPC system MINOS has been used in combination with the DALI2 detector array for the first time. A 345 MeV/u 238U beam with a mean intensity of about 12 pnA impinged on a Be target. Fission fragments were separated and identified using the BigRIPS spectrograph, and reaction products were analyzed using the ZeroDegree spectrograph. A plateau of excitation energies, with a small change in the systematic trends past N = 44, reveals an extension of the N = 40 region of collectivity toward N = 50. Hence, the isotopes of interest are located within the N = 40 island of inversion. An interpretation of the observed trends is offered through large scale shell model calculations.

Published
2016

39. Study of19C by One-Neutron Knockout

Author

Hwang, Jongwon, primary, Kim, Sunji, additional, Satou, Yoshiteru, additional, Orr, Nigel A., additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Gibelin, Julien, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2016
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40. Spectroscopy of17C via one-neutron knockout reaction

Author

Kim, Sunji, primary, Hwang, Jongwon, additional, Satou, Yoshiteru, additional, Orr, Nigel A., additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Gibelin, Julien, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2016
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41. Invariant Mass Spectroscopy of 17C via One-Neutron Knockout Reaction of 18C

Author

Kim, Sunji, primary, Hwang, Jongwon, additional, Satou, Yoshiteru, additional, Orr, Nigel A., additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Gibelin, Julien, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2015
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42. Invariant-Mass Spectroscopy of Extremely Neutron-Rich Nuclei with SAMURAI at RIBF

Author

Kondo, Yosuke, primary, Nakamura, Takashi, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Gibelin, Julien, additional, Hwang, Jongwon, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kim, Sunji, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Orr, Nigel A., additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Satou, Yoshiteru, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2015
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43. Structure Beyond the Dripline in the Boron Isotopes: 16,18,20,21B

Author

Marqués, F. Miguel, primary, Leblond, Sylvain, additional, Gibelin, Julien, additional, Orr, Nigel A., additional, Ogoshi, Shun, additional, Minakata, Ryogo, additional, Kondo, Yosuke, additional, Nakamura, Takashi, additional, Tanaka, Ryuki, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Hwang, Jongwong, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kim, Sunji, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Lee, Jenny, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Satou, Yoshiteru, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2015
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44. Compilation of Nuclear Reaction Data from RIBF

Author

Makinaga, Ayano, primary, Ebata, Shuichiro, additional, Aikawa, Masayuki, additional, Furutachi, Naoya, additional, Ichinkhorloo, Dagvadorj, additional, Katō, Kiyoshi, additional, Odsuren, Myagmarjav, additional, Devi, Vidya, additional, Otuka, Naohiko, additional, Kohama, Akihisa, additional, Otsu, Hideaki, additional, and Sakurai, Hiroyoshi, additional

Published
2015
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45. Proton Inelastic Scattering on Island-of-Inversion Nuclei

Author

Michimasa, Shin’ichiro, primary, Yanagisawa, Yoshiyuki, additional, Inafuku, Kiyohiko, additional, Aoi, Nori, additional, Elekes, Zoltán, additional, Fülöp, Zsolt, additional, Ichikawa, Yuichi, additional, Iwasa, Naohito, additional, Kurita, Kazuyoshi, additional, Kurokawa, Meiko, additional, Machida, Tomohiro, additional, Motobayashi, Tohru, additional, Nakamura, Takashi, additional, Nakabayashi, Takumi, additional, Notani, Masahiro, additional, Ong, Hooi Jin, additional, Onishi, Takeo, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Shinohara, Mayuko, additional, Sumikama, Toshiyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Kanenobu, additional, Togano, Yasuhiro, additional, Yamada, Kazunari, additional, Yamaguchi, Mitsutaka, additional, and Yoneda, Ken-ichiro, additional

Published
2015
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46. Hole States in16C Observed via One-Neutron Knockout of17C

Author

Satou, Yoshiteru, primary, Hwang, Jongwon, additional, Kim, Sunji, additional, Tshoo, Kyoungho, additional, Choi, Seonho, additional, Nakamura, Takashi, additional, Sugimoto, Takashi, additional, Kondo, Yosuke, additional, Matsui, Nobuyuki, additional, Hashimoto, Yoshiko, additional, Nakabayashi, Takumi, additional, Okumura, Toshifumi, additional, Shinohara, Mayuko, additional, Fukuda, Naoki, additional, Motobayashi, Toru, additional, Yanagisawa, Yoshiyuki, additional, Aoi, Nori, additional, Takeuchi, Satoshi, additional, Gomi, Tomoko, additional, Sakurai, Hiroyoshi, additional, Otsu, Hideaki, additional, Ishihara, Masayasu, additional, Togano, Yasuhiro, additional, Kawai, Shoko, additional, Ong, Hooi, additional, Onishi, Takeo, additional, Shimoura, Susumu, additional, Tamaki, Mitsuru, additional, Kobayashi, Toshio, additional, Matsuda, Yohei, additional, Endo, Natsumi, additional, and Kitayama, Mitsuhisa, additional

Published
2015
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47. Collectivity in the Neutron-Rich Pd Isotopes Towards N = 82

Author

Wang, He, primary, Aoi, Nori, additional, Takeuchi, Satoshi, additional, Matsushita, Masafumi, additional, Doornenbal, Pieter, additional, Motobayashi, Tohru, additional, Steppenbeck, David, additional, Yoneda, Kenichiro, additional, Baba, Hidetaba, additional, Cáceres, Lucia, additional, Dombrádi, Zsolt, additional, Kondo, Yosuke, additional, Lee, Jenny, additional, Li, Kuo-ang, additional, Liu, Hong-Na, additional, Minakata, Ryogo, additional, Nishimura, Daiki, additional, Otsu, Hideaki, additional, Sakaguchi, Satoshi, additional, Sakurai, Hiroyoshi, additional, Scheit, Heiko, additional, Sohler, Dora, additional, Sun, Ye-Lei, additional, Tian, Zheng-Yang, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Vajta, Zsolt, additional, Yang, Zai-Hong, additional, Yamamoto, Tetsuya, additional, Ye, Yan-Lin, additional, and Yokoyama, Rin, additional

Published
2015
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48. In-Beam Performances of the MINOS TPC for the Spectroscopy of Very Exotic Nuclei

Author

Santamaria, Clementine, primary, Obertelli, Alexandre, additional, Ota, Shinsuke, additional, Sasano, Masaki, additional, Takada, Eichi, additional, Audirac, Laurent, additional, Baba, Hidetada, additional, Calvet, Denis, additional, Château, Frédéric, additional, Corsi, Anna, additional, Delbart, Alain, additional, Doornenbal, Pieter, additional, Giganon, Arnaud, additional, Gillibert, Alain, additional, Kondo, Yosuke, additional, Kubota, Yuki, additional, Lahonde-Hamdoun, Caroline, additional, Lapoux, Valérie, additional, Lee, Cheong Soo, additional, Otsu, Hideaki, additional, Peyaud, Alan, additional, Pollacco, Emanuel C., additional, Tokieda, Hiroshi, additional, Uesaka, Tomohiro, additional, and Zenihiro, Juzo, additional

Published
2015
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49. Study of 19C by One-Neutron Knockout from 20C

Author

Hwang, Jongwon, primary, Kim, Sunji, additional, Satou, Yoshiteru, additional, Orr, Nigel A., additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Gibelin, Julien, additional, Achouri, N. Lynda, additional, Aumann, Thomas, additional, Baba, Hidetada, additional, Delaunay, Franck, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Inabe, Naohito, additional, Isobe, Tadaaki, additional, Kameda, Daisuke, additional, Kanno, Daiki, additional, Kobayashi, Nobuyuki, additional, Kobayashi, Toshio, additional, Kubo, Toshiyuki, additional, Leblond, Sylvain, additional, Lee, Jenny, additional, Marqués, F. Miguel, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Murai, Daichi, additional, Murakami, Tetsuya, additional, Muto, Kotomi, additional, Nakashima, Tomohiro, additional, Nakatsuka, Noritsugu, additional, Navin, Alahari, additional, Nishi, Seijiro, additional, Ogoshi, Shun, additional, Otsu, Hideaki, additional, Sato, Hiromi, additional, Shimizu, Yohei, additional, Suzuki, Hiroshi, additional, Takahashi, Kento, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Tanaka, Ryuki, additional, Togano, Yasuhiro, additional, Tuff, Adam G., additional, Vandebrouck, Marine, additional, and Yoneda, Ken-ichiro, additional

Published
2015
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50. Persistence of N = 50 Shell Closure in the Vicinity of 78Ni Studied by In-Beam γ-Ray Spectroscopy

Author

Shiga, Yoshiaki, primary, Yoneda, Ken-ichiro, additional, Steppenbeck, David, additional, Aoi, Nori, additional, Doornenbal, Pieter, additional, Lee, Jenny, additional, Liu, Hongna, additional, Matushita, Masafumi, additional, Takeuchi, Satoshi, additional, Wang, He, additional, Baba, Hidetada, additional, Bednarczyk, Piotr, additional, Dombradi, Zsolt, additional, Fulop, Zsolt, additional, Go, Shintaro, additional, Hashimoto, Takashi, additional, Ideguchi, Eiji, additional, Ieki, Kazuo, additional, Kobayashi, Kota, additional, Kondo, Yosuke, additional, Minakata, Ryogo, additional, Motobayashi, Tohru, additional, Nisimura, Daiki, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Sohler, Dora, additional, Sun, Yelei, additional, Tamii, Atsushi, additional, Tanaka, Ryuki, additional, Tian, Zhengyang, additional, Vajta, Zsolt, additional, Yamamoto, Tetsuya, additional, Yang, Xiaofei, additional, Yang, Zaihong, additional, Ye, Yanlin, additional, Yokoyama, Rin, additional, and Zenihiro, Juzo, additional

Published
2015
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