Alpha-decay spectroscopy of $^{257}$Rf

A.A. Kuznetsova; A.G. Popeko; A.I. Svirikhin; A. Lopez-Martens; A.V. Isaev; A.V. Yeremin; B. Andel; B. Gall; D. Ackermann; D.E. Katrasev

arxiv: 2104.12526 · v2 · pith:BYHCPVR2new · submitted 2021-04-26 · ⚛️ nucl-ex

Alpha-decay spectroscopy of ²⁵⁷Rf

K. Hauschild , A. Lopez-Martens , R. Chakma , O. Dorvaux , B. Gall , M.L. Chelnokov , V.I. Chepigin , A.V. Isaev

show 13 more authors

I.N. Izosimov D.E. Katrasev A.A. Kuznetsova O.N. Malyshev A.G. Popeko Yu.A. Popov E.A. Sokol A.I. Svirikhin A.V. Yeremin D. Ackermann J. Piot P. Mosat B. Andel

This is my paper

classification ⚛️ nucl-ex

keywords statedecaygroundbeenexcitedisomerabovealpha

0 comments

read the original abstract

The decay properties of the ground state and excited states of $^{257}$Rf have been investigated with the detector array GABRIELA at the FLNR, Dubna. The electromagnetic decay of a new excited state in $^{253}$No has been observed. The state lies 750 keV above the ground state and is favourably populated in the alpha decay of the low-lying spin isomer of $^{257}$Rf. It decays to the 9/2$^-$ ground state by an M1 transition and is assigned the 11/2$^-$[725] Nilsson configuration. The presence of this state suggests a possible reinterpretation of the decay of the high-K isomer in $^{253}$No.

This paper has not been read by Pith yet.

Alpha-decay spectroscopy of ²⁵⁷Rf

discussion (0)