Open AccessClear evidence of a clusters in the ground state of heavy nuclei
Author(s) -
J. Tanaka,
Z. Yang,
S. Typel
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012108
Subject(s) - cluster (spacecraft) , neutron , tin , physics , atomic physics , surface (topology) , ground state , nuclear physics , chemistry , geometry , mathematics , computer science , programming language , organic chemistry
We obtained clear evidence of α clustering at the surface of heavy nuclei by measuring the cross sections for quasi-free α-knockout reactions along the tin isotopic chain. The α-cluster appearance at the nuclear surface could not only be a natural explanation for the α-preformation in the α-decay theory, but also provides the modification to the relation between neutron-skin thicknesses Δτ η ρ and a slope parameter L in the nuclear equation of state.