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4 results on '"Z. Vajta"'

1. Evolution of proton single-particle states in neutron-rich Sb isotopes beyond N=82

Author

A. Jungclaus, Y. Shimizu, H. Schaffner, Hiroshi Suzuki, T. Isobe, I. Kojouharov, Hiroshi Watanabe, G. D. Kim, J. M. Daugas, Hiroki Nishibata, Jinguang Wu, Hiroyoshi Sakurai, D. Kameda, Toshiyuki Kubo, Shunji Nishimura, A. Gargano, Gary Simpson, P. Doornenbal, Atsuko Odahara, H. Baba, K. Moschner, Roman Gernhäuser, F. Browne, Z. H. Li, Z Vajta, Ayumi Yagi, Naohito Inabe, S. Bönig, Marcus Scheck, Guillaume Gey, T. Kröll, K. Yoshinaga, S. Ilieva, N. Kurz, Jan Taprogge, Naoki Fukuda, K. Steiger, Hyo Soon Jung, R. Orlandi, J. M. Keatings, Young-Ki Kim, P. A. Söderström, Younghun Kwon, A. Montaner-Pizá, Giuseppe Lorusso, Anna Wendt, D. Mücher, Toshiyuki Sumikama, Hiroyuki Takeda, H. Naïdja, Zhengyu Xu, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), Institut Laue-Langevin (ILL), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), ILL, RIKEN Nishina Center for Accelerator-Based Science, Ministerio de Economía y Competitividad (España), Science and Technology Facilities Council (UK), and National Research, Development and Innovation Office (Hungary)

Subjects
Physics, Proton, Isotope, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear structure, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Structure, 7. Clean energy, 01 natural sciences, Beta decay, Nuclear physics, Neutron number, Excited state, 0103 physical sciences, Neutron, Nuclear Experiment, 010306 general physics, Excitation
Abstract

11 pags., 8 figs., 2 tabs., The β decay of the semimagic Sn isotopes Sn136,137,138 has been studied at the Radioactive Isotope Beam Factory at the RIKEN Nishina Center. The first experimental information on excited states was obtained for Sb137 while, in the case of Sb136, the established excitation scheme could be extended by ten previously unidentified levels. In the decay of the most-neutron-rich isotope Sn138, two γ rays were observed for the first time. The new experimental results, in combination with state-of-the-art shell-model calculations, provide the first information with respect to the evolution of the 0g7/2 and 1d5/2 proton single-particle states with increasing neutron number beyond N=84., We thank the staff of the RIKEN Nishina Center accelerator complex for providing high-intensity beams to the experiment. This work was supported by the Spanish Ministerio de Ciencia e Innovación under contracts FPA2014-57196-C5-4-P and FPA2017-84756-C4-2-P and the UK Science and Technology Facilities Council under Grant No. ST/P005101/1. Zs.V. was supported by the European Regional Development Fund (Contract No. GINOP-2.3.3- 15-2016-00034), the National Research Development and Innovation Fund of Hungary (Grant No. K128947), and by RIKEN as short-term International Program Associate.

Published
2020
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2. 94 β -Decay Half-Lives of Neutron-Rich Cs55 to Ho67 : Experimental Feedback and Evaluation of the r -Process Rare-Earth Peak Formation

Author

J. Wu, S. Nishimura, G. Lorusso, P. Möller, E. Ideguchi, P.-H. Regan, G. S. Simpson, P.-A. Söderström, P. M. Walker, H. Watanabe, Z. Y. Xu, H. Baba, F. Browne, R. Daido, P. Doornenbal, Y. F. Fang, N. Fukuda, G. Gey, T. Isobe, Z. Korkulu, P. S. Lee, J. J. Liu, Z. Li, Z. Patel, V. Phong, S. Rice, H. Sakurai, L. Sinclair, T. Sumikama, M. Tanaka, A. Yagi, Y. L. Ye, R. Yokoyama, G. X. Zhang, D. S. Ahn, T. Alharbi, N. Aoi, F. L. Bello Garrote, G. Benzoni, A. M. Bruce, R. J. Carroll, K. Y. Chae, Z. Dombradi, A. Estrade, A. Gottardo, C. J. Griffin, N. Inabe, D. Kameda, H. Kanaoka, I. Kojouharov, F. G. Kondev, T. Kubo, S. Kubono, N. Kurz, I. Kuti, S. Lalkovski, G. J. Lane, E. J. Lee, T. Lokotko, G. Lotay, C.-B. Moon, D. Murai, H. Nishibata, I. Nishizuka, C. R. Nita, A. Odahara, Zs. Podolyák, O. J. Roberts, H. Schaffner, C. Shand, Y. Shimizu, H. Suzuki, H. Takeda, J. Taprogge, S. Terashima, Z. Vajta, and S. Yoshida

Subjects
Physics, Radionuclide, 010308 nuclear & particles physics, Rare earth, Analytical chemistry, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Ionizing radiation, Nuclear physics, 0103 physical sciences, Nuclear astrophysics, r-process, Neutron, 010306 general physics, Beam (structure)
Abstract

the beta-decay half-lives of 94 neutron-rich nuclei 144-151Cs; 146-155Ba; 148-156La; 150-158Ce; 153-160Pr; 156-162Nd; 159-163Pm; 160-166Sm; 161-168eu; 165-170Gd, 166-172Tb; 169-173Dy; 172-175Ho, and 2 isomeric states 174mEr and 172mDy were measured at the Radioactive Isotope Beam Factory providing a new experimental basis to test theoetical models. Strikingl large drops of beta-decay half-lives are observed at neutron-number N=97 for Ce, Pr, Nd and Sm and N=105 for eu, Gd, Tb and Dy.

Published
2017
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3. Identification of a millisecond isomeric state inCd81129via the detection of internal conversion and Compton electrons

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Millisecond, Fission, Nuclear Theory, Electron, Nuclear isomer, 7. Clean energy, Internal conversion, Excited state, Atomic physics, Nuclear Experiment, Spin (physics), Beam (structure)
Abstract

The decay of an isomeric state in the neutron-rich nucleus 129 Cd has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a 238 U beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of γ -rays and internal conversion electrons, a multipolarity of E 3 was tentatively assigned to the isomeric transition. A half-life of T 1 / 2 = 3.6 ( 2 ) ms was determined for the new state which was assigned a spin of ( 21 / 2 + ) , based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions.

Published
2014
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4. βdecay of semi-magicCd130: Revision and extension of the level scheme ofIn130

Author

F. G. Kondev, F. Browne, Hiroyoshi Sakurai, G. D. Kim, Guillaume Gey, Anna Wendt, Zhengyu Xu, Z. H. Li, H. Baba, Shunji Nishimura, A. Gargano, S. Ilieva, J. M. Daugas, Toshiyuki Sumikama, A. Jungclaus, Hiroyuki Takeda, F. Naqvi, Hiroshi Suzuki, I. Kojouharov, Toshiyuki Kubo, R. Orlandi, Roman Gernhäuser, G. J. Lane, H. Grawe, Giuseppe Lorusso, Zsolt Podolyak, Z Vajta, L. Coraggio, N. Kurz, K. Steiger, Ayumi Yagi, S. Bönig, Hiroki Nishibata, Jin Wu, K. Moschner, Young-Ki Kim, D. Kameda, H. S. Jung, P. Doornenbal, Nunzio Itaco, Naoki Fukuda, Jan Taprogge, Zena Patel, G. Benzoni, K. Yoshinaga, Megumi Niikura, D. Mücher, K. Y. Chae, F. Drouet, A. Gadea, Gary Simpson, P. A. Söderström, Younghun Kwon, A. Montaner-Pizá, Atsuko Odahara, Naohito Inabe, Y. Shimizu, H. Schaffner, T. Isobe, Hiroshi Watanabe, and T. Kröll

Subjects
Physics, Nuclear physics, 010308 nuclear & particles physics, 0103 physical sciences, Library science, European commission, 010306 general physics, 7. Clean energy, 01 natural sciences, Marie curie
Abstract

This work was supported by the Spanish Ministerio de Ciencia e Innovacion under contract FPA2011-29854-C04 and the Spanish Ministerio de Economia y Competitividad under Contract No. FPA2014-57196-C5- 4-P, the Generalitat Valenciana (Spain) under Grant No. PROMETEO/2010/101, the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (NRF-2014S1A2A2028636, 2016K1A3A7A09005579), the Priority Centers Research Program in Korea (2009-0093817), OTKA Contract No. K-100835, JSPS KAKENHI (Grant No. 25247045), the European Commission through the Marie Curie Actions call FP7-PEOPLE-2011-IEF under Contract No. 300096, the US Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357, the STFC (UK), the “RIKEN foreign research program,” the German BMBF (No. 05P12RDCIA, No. 05P12RDNUP, and No. 05P12PKFNE), HIC for FAIR, the DFG cluster of excellence “Origin and Structure of the Universe,” and DFG (Contract No. KR2326/2-1)

Published
2016
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