Identification of a K isomer in
No
NoにおけるKアイソマーの発見
Sulignano, B.*; Heinz, S.*; He
berger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Lommel, B.*; Mann, R.*; 西尾 勝久
; Popeko, A. G.*; Saro, S.*; Streicher, B.*; Venhart, M.*; Yeremin, A. V.*
Sulignano, B.*; Heinz, S.*; He
berger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Lommel, B.*; Mann, R.*; Nishio, Katsuhisa; Popeko, A. G.*; Saro, S.*; Streicher, B.*; Venhart, M.*; Yeremin, A. V.*
The
-isomer with a half-life of 100 ms has been discovered in the nucleus
No. The nucleus was produced in the fusion-evaporation reacion
Pb(
Ca,2n)
No. The experiment was carried out at the velocity filter SHIP of GSI. The isomeric state is located at an excitation energy of 1254 keV and is interpreted as a two quasi-neutron state with
=8
. The isomeric state has direct connection to the rotational states of 8
in
No. Also the rotational states of 6
and 4
was feeded via the octupole band with
=2
. The isomeric state and the ground state was populated with the equal intensity in the fusion-evaporation reaction.