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Photodisintegration of 181Ta leading to the isomeric state 180Tam

par Goko, Shinji;Utsunomiya, Hiroaki;Makinaga, Ayano;Kaihori, Takeshi;Akimune, Hidetoshi;Yamagata, Tamio;Hohara, Shinya;Goriely, Stéphane ;Koning, Arjan J.;Hilaire, Stéphane;Toyokawa, Hiroyuki;Lui, Yiu-Wing
Référence Pos proceedings of science
Publication Publié, 2006

Article révisé par les pairs

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Résumé :

Partial photoneutron cross sections for 181Ta(gamma;,n) 180Tam(9-) were measured with laser Compton scattering γ rays. The partial cross section, which reflects selective γ transitions in 180Ta leading to the isomeric state, cast new light into the spin- and parity-dependent nuclear level density of 180Ta. Essentially the same selective γ transition is expected in neutron capture on 179Ta leading to 180Ta m(9-). The weak s-process branching to the only naturally occurring isomer 180Tam is discussed. © Copyright owned by the author(s).