Refine your search�ソスF     
Report No.
 - 

Production and decay properties of $$^{263,264,265}$$Hs

Sato, Nozomi; Kaji, Daiya*; Morimoto, Koji*; Haba, Hiromitsu*; Ichikawa, Takatoshi*; Ideguchi, Eiji*; Koura, Hiroyuki   ; Kudo, Yuki*; Ozawa, Akira*; Ozeki, Kazutaka*; Sumita, Takayuki*; Yamaguchi, Takayuki*; Yoneda, Akira*; Yoshida, Atsushi*; Morita, Kosuke*

In the superheavy nuclei region, the deformed proton shell at $$Z=108$$ and neutron shells at $$N=152$$ and 162 have been found. $$^{260}$$Hs with $$Z=108$$ and $$N=152$$ is expected to be the doubly deformed magic nuclei, however, decay properties of $$^{260}$$Hs and its neighboring nuclei is not well known. In order to approach $$^{260}$$Hs, we synthesized $$^{263,264,265}$$Hs by $$^{208}$$Pb($$^{58}$$Fe,xn) [$$x=1, 2$$], $$^{207}$$Pb($$^{58}$$Fe,n), $$^{206}$$Pb($$^{58}$$Fe,n), $$^{208}$$Pb($$^{56}$$Fe,n) reactions. The experiment was performed with the gas-filled recoil ion separator GARIS at the linear accelerator facility in RIKEN. In this work, 9 $$alpha$$-decay events of $$^{263}$$Hs were observed with half-life $$T_{1/2}=0.60^{+0.30}_{-0.15}$$ ms and $$alpha$$-decay energy $$Q_{alpha}=10.99$$ MeV. For $$^{264}$$Hs, we have also observed new $$alpha$$-particle energy, 10.65 MeV. $$Q_{alpha}$$ values of $$^{263,264,265}$$Hs isotopes increase with decreasing neutron number.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.