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Preprints and Communications
 Here you can find JINR preprints and communications in pdf format starting from 1999. File size is given in bytes in round brackets.
| 2026 |
E7-2026-3 (1. 414)
Isaev A.V. et al.
Prompt Neutron Emission in the Spontaneous Fission of 258,260Sg
An experimental study of 258,260Sg produced in the complete fusion reactions 207Pb + 52,54Cr was performed using the SHELS velocity filter.
Prompt neutron multiplicities in the spontaneous fission of 258,260Sg were measured for the first time, yielding average values of ν¯ (258Sg) = 4.9 ± 0.4 and ν¯ (260Sg) = 5.03 ± 0.14.
The α-decay branching ratio of 260Sg was determined to be bα = 0.29 ± 0.03. In addition, the half-lives were measured as T1/2(258Sg) = 2.2+2.4-1.0 ms (95% C.L., confidence limit)
and T1/2(260Sg) = 7.0+2,6-1.7 ms (95% C.L.).
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