Clustering in alpha conjugate nuclei
1 Cyclotron Institute, Texas A&M University, College Station, TX, USA
2 Chonbuk National University, Jeonju, Korea
3 IMP HIRFL, Chinese Academy of Sciences, Lanzhou, 730000, China
4 Institute of Physics, Silesia University, Katowice, Poland
5 Università di Padova and INFN, Sezione di Padova, Padova, Italy
6 INFN-Laboratori Nazionali di Legnaro, Legnaro (PD), Italy
7 Université Catholique de Louvain, B-1348 Louvain-Neuve, Belgium
8 Smoluchowski Inst. of Physics, Jagiellonian University, Kraków, Poland
9 Shanghai Institute of Nuclear Research, Shanghai 201800, China
Published online: 24 April 2015
Characteristics of the decay of alpha like nuclei produced in various reactions with alpha conjugate nuclei are discussed. We observe a significant number of events in which a large fraction of the system breaks up into alpha-conjugate nuclei. Lighter fragments in the various decay channels appear to originate from a neck-like region between 4 and 7 cm/ns whereas the heavier fragments appear to originate from velocities near the beam velocity. This behavior is consistent with a hierarchy effect that cannot be explained by statistical processes.
© Owned by the authors, published by EDP Sciences - SIF, 2015
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