Excited-State Half-Lives in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>Cd</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>130</mn></mrow></mmultiscripts></mrow></math> and the Isospin Dependence of Effective Charges

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

doi:10.1103/PhysRevLett.132.222501

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Excited-State Half-Lives in ${}^{130}{Cd}$ and the Isospin Dependence of Effective Charges

A. Jungclaus¹, M. Górska², M. Mikołajczuk^2,3, J. Acosta¹, J. Taprogge^1,4,5, S. Nishimura⁵, P. Doornenbal⁵, G. Lorusso⁵, G. S. Simpson⁶ et al.

P.-A. Söderström^5,*, T. Sumikama⁷, Z. Xu⁸, P. Kumar^9,2, G. Martínez-Pinedo^2,9, F. Nowacki¹⁰, P. Van Isacker¹¹, H. Baba⁵, F. Browne^12,5, N. Fukuda⁵, R. Gernhäuser¹³, G. Gey^6,14,5, N. Inabe⁵, T. Isobe⁵, H. S. Jung^15,†, D. Kameda⁵, G. D. Kim¹⁶, Y.-K. Kim^16,17, I. Kojouharov², T. Kubo⁵, N. Kurz², Y. K. Kwon¹⁶, Z. Li¹⁸, H. Sakurai^5,8, H. Schaffner², Y. Shimizu⁵, K. Steiger¹³, H. Suzuki⁵, H. Takeda⁵, Zs. Vajta^19,5, H. Watanabe⁵, J. Wu^18,5, A. Yagi²⁰, K. Yoshinaga²¹, G. Benzoni²², S. Bönig²³, K. Y. Chae²⁴, J.-M. Daugas²⁵, F. Drouet⁶, A. Gadea²⁶, S. Ilieva²³, F. G. Kondev²⁷, T. Kröll²³, G. J. Lane²⁸, A. Montaner-Pizá²⁶, K. Moschner²⁹, F. Naqvi³⁰, M. Niikura⁸, H. Nishibata²⁰, A. Odahara²⁰, R. Orlandi^31,32, Z. Patel³³, Zs. Podolyák³³, and A. Wendt²⁹

¹Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
²GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
³Faculty of Physics, University of Warsaw, Warsaw, PL-02093, Poland
⁴Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
⁵RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
⁶LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
⁷Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
⁸Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan
⁹Institut für Kernphysik (Theoriezentrum), Fachbereich Physik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
¹⁰Université de Strasbourg, CNRS, IPHC UMR, Strasbourg, 7178, F-67000, France
¹¹Grand Accélérateur National d’Ions Lourds, CEA/DRF–CNRS/IN2P3, F-14076 Caen, France
¹²School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
¹³Physik Department E12, Technische Universität München, D-85748 Garching, Germany
¹⁴Institut Laue-Langevin, B.P. 156, F-38042 Grenoble Cedex 9, France
¹⁵Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea
¹⁶Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
¹⁷Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea
¹⁸School of Physics and State key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
¹⁹MTA Atomki, P.O. Box 51, Debrecen H-4001, Hungary
²⁰Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
²¹Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
²²INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
²³Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
²⁴Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea
²⁵CEA, DAM, DIF, F-91297 Arpajon cedex, France
²⁶Instituto de Física Corpuscular, CSIC-Univ. of Valencia, E-46980 Paterna, Spain
²⁷Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
²⁸Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia
²⁹IKP, University of Cologne, D-50937 Cologne, Germany
³⁰Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8120, USA
³¹Instituut voor Kern- en StralingsFysica, K.U. Leuven, B-3001 Heverlee, Belgium
³²Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
³³Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom

^*Present address: Extreme Light Infrastructure-Nuclear Physics (ELI-NP)/Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Str. Reactorulu, Măgurele 077125, Romania.
^†Present address: Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.

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Phys. Rev. Lett. 132, 222501 – Published 29 May, 2024

DOI: https://doi.org/10.1103/PhysRevLett.132.222501

Abstract

The known $I^{π} = 8_{1}^{+}$ , $E_{x} = 2129 − keV$ isomer in the semimagic nucleus ${}^{130}{Cd}_{82}$ was populated in the projectile fission of a ${}^{238}U$ beam at the Radioactive Isotope Beam Factory at RIKEN. The high counting statistics of the accumulated data allowed us to determine the excitation energy, $E_{x} = 2001.2 (7) keV$ , and half-life, $T_{1 / 2} = 57 (3) ns$ , of the $I^{π} = 6_{1}^{+}$ state based on $γ γ$ coincidence information. Furthermore, the half-life of the $8_{1}^{+}$ state, $T_{1 / 2} = 224 (4) ns$ , was remeasured with high precision. The new experimental information, combined with available data for ${}^{134}{Sn}$ and large-scale shell model calculations, allowed us to extract proton and neutron effective charges for ${}^{132}{Sn}$ , a doubly magic nucleus far-off stability. A comparison to analogous information for ${}^{100}{Sn}$ provides first reliable information regarding the isospin dependence of the isoscalar and isovector effective charges in heavy nuclei.

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Proton Effective Charge Depends on Neutron Population

Published 29 May, 2024

Experiments comparing neutron-rich cadmium with previous data on a neutron-poor version prove that a key parameter in nuclear calculations depends on the neutron-to-proton ratio.

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Excited-State Half-Lives in ${}^{130}{Cd}$ and the Isospin Dependence of Effective Charges

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Proton Effective Charge Depends on Neutron Population

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Excited-State Half-Lives in Cd130 and the Isospin Dependence of Effective Charges

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Proton Effective Charge Depends on Neutron Population

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Excited-State Half-Lives in ${}^{130}{Cd}$ and the Isospin Dependence of Effective Charges