title: Gamma-ray multiplicities and fission modes in (208)Pb((18)O,f).
abstract: Two components in the M(gamma)(M) distribution were established in detailed measurements of mean gamma-ray multiplicities from fission fragments of (226)Th. For the first time in the M(gamma)(M) dependencies we were able to distinguish two components associated with primary and the final (after the neutron evaporation) fission fragments, and show that at the scission point M(gamma) is extremely sensitive to symmetric and asymmetric modes of fission. Theoretical calculations of the pre-scission shapes of the fissioning nuclei confirm our conclusions.
authors.affiliation: Cyclotron Institute, Texas A & M University, College Station, Texas 77843, USA.
authors.forename: G G
authors.initials: GG
authors.lastname: Chubarian
authors.forename: M G
authors.initials: MG
authors.lastname: Itkis
authors.forename: N A
authors.initials: NA
authors.lastname: Kondratiev
authors.forename: E M
authors.initials: EM
authors.lastname: Kozulin
authors.forename: V V
authors.initials: VV
authors.lastname: Pashkevich
authors.forename: I V
authors.initials: IV
authors.lastname: Pokrovsky
authors.forename: A Y
authors.initials: AY
authors.lastname: Rusanov
authors.forename: V S
authors.initials: VS
authors.lastname: Salamatin
authors.forename: R P
authors.initials: RP
authors.lastname: Schmitt