Excited-State Half-Lives in Cd 130 and the Isospin Dependence of Effective Charges

Jungclaus, A.; Górska, M.; Mikołajczuk, M.; Acosta, J.; Taprogge, J.; Nishimura, S.; Doornenbal, P.; Lorusso, G.; Simpson, G.S.; Kim, Y.-K.; Söderström, P.-A.; Sumikama, T.; Xu, Z.; Kumar, P.; Martínez-Pinedo, G.; Nowacki, F.; Van Isacker, P.; Baba, H.; Browne, F.; Fukuda, N.; Gernhäuser, R.; Gey, G.; Inabe, N.; Isobe, T.; Jung, H.S.; Kameda, D.; Kim, G.D.; 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.; Daugas, J.-M.; Drouet, F.; Gadea, A.; Ilieva, S.; Kondev, F.G.; Kröll, T.; Lane, G.J.; Montaner-Pizá, A.; Moschner, K.; Naqvi, F.; Niikura, M.; Nishibata, H.; Odahara, A.; Orlandi, R.; Patel, Z.; Podolyák, Zs.; Wendt, A.

doi:10.1103/PhysRevLett.132.222501

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Excited-State Half-Lives in Cd 130 and the Isospin Dependence of Effective Charges

Jungclaus, A.;
Górska, M.;
Mikołajczuk, M.;
Acosta, J.;
Taprogge, J.;
... Kim, Y.-K.;
외 57명

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초록

The known Iπ=81+, Ex=2129-keV isomer in the semimagic nucleus Cd13082 was populated in the projectile fission of a U238 beam at the Radioactive Isotope Beam Factory at RIKEN. The high counting statistics of the accumulated data allowed us to determine the excitation energy, Ex=2001.2(7) keV, and half-life, T1/2=57(3) ns, of the Iπ=61+ state based on γγ coincidence information. Furthermore, the half-life of the 81+ state, T1/2=224(4) ns, was remeasured with high precision. The new experimental information, combined with available data for Sn134 and large-scale shell model calculations, allowed us to extract proton and neutron effective charges for Sn132, a doubly magic nucleus far-off stability. A comparison to analogous information for Sn100 provides first reliable information regarding the isospin dependence of the isoscalar and isovector effective charges in heavy nuclei.

키워드

SHELL-MODEL; POLARIZATION; NUCLEI; RIKEN

제목: Excited-State Half-Lives in Cd 130 and the Isospin Dependence of Effective Charges

저자: Jungclaus, A.; Górska, M.; Mikołajczuk, M.; Acosta, J.; Taprogge, J.; Nishimura, S.; Doornenbal, P.; Lorusso, G.; Simpson, G.S.; Kim, Y.-K.; Söderström, P.-A.; Sumikama, T.; Xu, Z.; Kumar, P.; Martínez-Pinedo, G.; Nowacki, F.; Van Isacker, P.; Baba, H.; Browne, F.; Fukuda, N.; Gernhäuser, R.; Gey, G.; Inabe, N.; Isobe, T.; Jung, H.S.; Kameda, D.; Kim, G.D.; 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.; Daugas, J.-M.; Drouet, F.; Gadea, A.; Ilieva, S.; Kondev, F.G.; Kröll, T.; Lane, G.J.; Montaner-Pizá, A.; Moschner, K.; Naqvi, F.; Niikura, M.; Nishibata, H.; Odahara, A.; Orlandi, R.; Patel, Z.; Podolyák, Zs.; Wendt, A.

DOI: 10.1103/PhysRevLett.132.222501

발행일: 2024-05

유형: Article

저널명: Physical Review Letters

권: 132

호: 22

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