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

$$^{133}$$Inのベータ崩壊; $$^{133}$$Snの中性子非束縛状態からのガンマ線遷移

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

Piersa, M.*; Korgul, A.*; Benito, J.*; Andreyev, A.; 75 of others*

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.

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