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Title: Possibility of synthesizing a doubly magic superheavy nucleus

Abstract

The possibility of synthesizing a doubly magic superheavy nucleus, {sup 298}114{sub 184}, is investigated on the basis of fluctuation-dissipation dynamics. In order to synthesize this nucleus, we must generate more neutron-rich compound nuclei because of the neutron emissions from excited compound nuclei. The compound nucleus {sup 304}114 has two advantages to achieving a high survival probability. First, because of low neutron separation energy and rapid cooling, the shell correction energy recovers quickly. Secondly, owing to neutron emissions, the neutron number in the nucleus approaches that of the double closed shell and the nucleus attains a large fission barrier. Because of these two effects, the survival probability of {sup 304}114 does not decrease until the excitation energy E{sup *}=50 MeV. These properties lead to a rather high evaporation residue cross section.

Authors:
 [1]
  1. Flerov Laboratory of Nuclear Reactions, JINR, Dubna (Russian Federation)
Publication Date:
OSTI Identifier:
20991015
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevC.75.024602; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPOUND NUCLEI; CROSS SECTIONS; EVAPORATION; EXCITATION; FISSION BARRIER; FLUCTUATIONS; MEV RANGE 10-100; NEUTRON EMISSION; NEUTRON SEPARATION ENERGY; NEUTRONS; NUCLEI; PROBABILITY

Citation Formats

Aritomo, Y. Possibility of synthesizing a doubly magic superheavy nucleus. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.024602.
Aritomo, Y. Possibility of synthesizing a doubly magic superheavy nucleus. United States. doi:10.1103/PHYSREVC.75.024602.
Aritomo, Y. Thu . "Possibility of synthesizing a doubly magic superheavy nucleus". United States. doi:10.1103/PHYSREVC.75.024602.
@article{osti_20991015,
title = {Possibility of synthesizing a doubly magic superheavy nucleus},
author = {Aritomo, Y.},
abstractNote = {The possibility of synthesizing a doubly magic superheavy nucleus, {sup 298}114{sub 184}, is investigated on the basis of fluctuation-dissipation dynamics. In order to synthesize this nucleus, we must generate more neutron-rich compound nuclei because of the neutron emissions from excited compound nuclei. The compound nucleus {sup 304}114 has two advantages to achieving a high survival probability. First, because of low neutron separation energy and rapid cooling, the shell correction energy recovers quickly. Secondly, owing to neutron emissions, the neutron number in the nucleus approaches that of the double closed shell and the nucleus attains a large fission barrier. Because of these two effects, the survival probability of {sup 304}114 does not decrease until the excitation energy E{sup *}=50 MeV. These properties lead to a rather high evaporation residue cross section.},
doi = {10.1103/PHYSREVC.75.024602},
journal = {Physical Review. C, Nuclear Physics},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}