Status and prospects of investigations into the collinear cluster decay of heavy nuclei

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778814110064· OSTI ID:22314741

Pyatkov, Yu. V. ^[1]; Kamanin, D. V.; Alexandrov, A. A.; Alexandrova, I. A. ^[2]; Mkaza, N. ^[3]; Zhuchko, V. E.; Kondratyev, N. A.; Mishinsky, G. V. ^[2]; Malaza, V. ^[3]; Strekalovsky, A. O.; Strekalovsky, O. V. ^[2]

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1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) (Russian Federation)
2. Joint Institute for Nuclear Research (Russian Federation)
3. Stellenbosch University, Saldanha, South African Military Academy (South Africa)

Basic experimental results confirming the existence a new cluster-decay type called collinear cluster tripartition (CCT) are presented. Decays of this type manifest themselves, in particular, as a two-dimensional region of a locally enhanced yield of fragments (bump) that corresponds to specific missing-mass values in the mass-mass distribution of fission fragments. One of the decay modes that contribute to the bump can be treated as a cluster-decay type that is new in relation to the well-known heavy-ion or lead radioactivity. The conclusions drawn from an analysis of correlation mass distributions are confirmed by the results obtained from neutron-gated data, measurements of the nuclear charge for CCT events, and the direct detection of new-decay products.

• OSTI ID: 22314741
• Journal Information: Physics of Atomic Nuclei, Vol. 77, Issue 12; Other Information: Copyright (c) 2014 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CLUSTER MODEL
DAUGHTER PRODUCTS
FISSION FRAGMENTS
HEAVY IONS
HEAVY NUCLEI
MASS DISTRIBUTION
MISSING MASS
NEUTRONS
NUCLEAR DECAY