exotic nucleus

exotic nucleus

[ig′zäd·ik ′nü·klē·əs]
(nuclear physics)
An atomic nucleus in which the ratio of neutron number to proton number is much larger or much smaller than that of naturally occurring nuclei.
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References in periodicals archive ?
Using first-principle calculations run on Titan, we confirmed that a very exotic nucleus about which little is known, nickel-78, is doubly magic, said theoretical physicist Gaute Hagen, who performed the study with Gustav Jansen and Thomas Papenbrock.