JAEA
  • help
  • PC | SP
  • JP | EN
          
検索対象：     
報告書番号：
※ 半角英数字
 年 ～ 
 年
全てクリア
検索結果：　3 件中 1件目～3件目を表示
  • 1

発表形式

Initialising ...

選択項目を絞り込む

掲載資料名

Initialising ...

発表会議名

Initialising ...

筆頭著者名

Initialising ...

キーワード

Initialising ...

使用言語

Initialising ...

発行年

Initialising ...

開催年

Initialising ...

選択した検索結果をダウンロード

論文

Competition between allowed and first-forbidden $$beta$$ decays of $$^{208}$$At and expansion of the $$^{208}$$Po level scheme

Brunet, M.*; Podoly$'a$k, Zs.*; Berry, T. A.*; Brown, B. A.*; Carroll, R. J.*; Lica, R.*; Sotty, Ch.*; Andreyev, A. N.; Borge, M. J. G.*; Cubiss, J. G.*; et al.

Physical Review C, 103(5), p.054327_1 - 054327_13, 2021/05

https://doi.org/10.1103/PhysRevC.103.054327
 被引用回数：4 パーセンタイル：57.13(Physics, Nuclear)

The structure of $$^{208}$$Po populated through the EC/$$beta^{+}$$ decay of $$^{208}$$At is investigated using $$gamma$$-ray spectroscopy at the ISOLDE Decay Station. The presented level scheme contains 27 new excited states and 43 new transitions, as well as a further 50 previously observed $$gamma$$ rays which have been (re)assigned a position. Through the analysis using the shell model calculations approximately half of the $$beta$$-decay strength of $$^{208}$$At is found to proceed via allowed decay and half via first-forbidden decay. The first-forbidden transitions predominantly populate core excited states at high excitation energies, which is qualitatively understood using shell model considerations.

論文

Detailed spectroscopy of doubly magic $$^{132}$$Sn

Benito, J.*; Fraile, L. M.*; Korgul, A.*; Piersa, M.*; Adamska, E.*; Andreyev, A. N.; $'A$lvarez-Rodr$'i$guez, R.*; 他81名*

Physical Review C, 102(1), p.014328_1 - 014328_18, 2020/07

https://doi.org/10.1103/PhysRevC.102.014328
 被引用回数：14 パーセンタイル：84.12(Physics, Nuclear)

The structure of the doubly magic $$^{132}_{50}$$Sn$$_{82}$$ has been investigated at the ISOLDE facility at CERN, populated both by the $$beta$$-decay of $$^{132}$$In and $$beta$$-delayed neutron emission of $$^{133}$$In. The level scheme of $$^{132}$$Sn is greatly expanded with the addition of 68 $$gamma$$-ray transitions and 17 levels. The identification of particle-hole multiplets both for protons and neutrons and the transition rates connecting different particle-hole configurations may provide input on the two-body matrix elements and single-particle states for state-of-the-art calculations.

論文

$$beta$$ decay of $$^{133}$$In; $$gamma$$ emission from neutron-unbound states in $$^{133}$$Sn

Piersa, M.*; Korgul, A.*; Benito, J.*; Andreyev, A. N.; 他75名*

Physical Review C, 99(2), p.024304_1 - 024304_10, 2019/02

https://doi.org/10.1103/PhysRevC.99.024304
 被引用回数：11 パーセンタイル：74.44(Physics, Nuclear)

Excited states in $$^{133}$$Sn were investigated through the $$beta$$ decay of $$^{133}$$In at the ISOLDE facility. The ISOLDE Resonance Ionization Laser Ion Source (RILIS) provided isomer-selective ionization for $$^{133}$$In, allowing us to study separately, and in detail, the $$beta$$-decay branch of $$^{133}$$In $$J^{pi}$$ = (9/2$$^{+}$$) ground state and its $$J^{pi}$$ = (1/2$$^{-}$$) isomer. Thanks to the large spin difference of the two $$beta$$-decaying states of $$^{133}$$In, it is possible to investigate separately the lower and higher spin states in the daughter, $$^{133}$$Sn, and thus to probe independently different single-particle and single-hole levels. We report here new $$gamma$$ transitions observed in the decay of $$^{133}$$In, including those assigned to the deexcitation of the neutron-unbound states.

3 件中 1件目～3件目を表示
  • 1