2013/01/15 by H. Koura, Satoshi Chiba · 3 citations
Physics and Astronomy · #Nuclear physics research studies #Astronomical and nuclear sciences #Scientific Research and Discoveries #Physics #Nuclear physics #Neutron #Proton #Mass number #Neutron number #Magic number (chemistry) #Extrapolation #Nucleus #Nucleon #Atomic physics #Shell (structure) #Nuclear drip line #SHELL model #MAGIC (telescope) #Neutron temperature #Neutron cross section #Materials science #Astrophysics #Biology
paper · doi:10.7566/jpsj.82.014201
openalex publication_date 2013/01/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Single-particle levels of unknown superheavy and extremely superheavy nuclei are studied using a modified Woods–Saxon potential, which are smooth functions of the number of nucleons. This extrapolation gives that neutron shell closure remains for \(N=308\), and a proton shell has a gap at \(Z=164\), which is weaker than that of a neutron shell. Seven unknown doubly magic spherical nuclei beyond 208Pb are found: 256U164, 298Fl184, 310[126]184, 342Fl228, 366[138]228, 462[154]308, and 472[164]308. Of these, the 298Fl184 and 472[164]308 are beta-stable nuclei. The nucleus 472[164]308 seems to be the heaviest nuclei based on the analysis of neutron and proton drip lines and the fissility line.