Superheavy Elements: Present Status and Near Future

Journal Article · Thu Dec 03 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3275686· OSTI ID:21371355

Greiner, Walter ^[1]; Zagrebaev, Valery ^[2]

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1. Frankfurt Institute for Advanced Studies, J.W. Goethe-Universitaet (Germany)
2. Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Moscow region (Russian Federation)

The possibilities for the extension of the periodic system into the islands of superheavy (SH) elements, to and beyond the neutron drip line and to the sectors of strangeness and antimatter are discussed in the paper. The multi-nucleon transfer processes in low-energy damped collisions of heavy actinide nuclei may help us to fill the gap between the nuclei produced in the 'hot' fusion reactions and the continent of known nuclei. In these reactions we may also investigate the 'island of stability'. In many such collisions the lifetime of the composite giant system consisting of two touching nuclei turns out to be rather long (>=10{sup -20} s); sufficient for observing line structure in spontaneous positron emission from super-strong electric fields (vacuum decay), a fundamental QED process not observed yet experimentally. A tremendously rich scenario of new nuclear structure emerges with new magic numbers in the strangeness domain. Various production mechanisms are discussed for these objects and for antinuclei in high energy heavy-ion collisions.

• OSTI ID: 21371355
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1197; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
ANTILEPTONS
ANTIMATTER
ANTINUCLEI
ANTIPARTICLES
BARYONS
COLLISIONS
DECAY
ELECTRIC FIELDS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
ION COLLISIONS
ION-ION COLLISIONS
LEPTONS
MAGIC NUCLEI
MATTER
NEUTRONS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
NUCLEONS
NUCLEOSYNTHESIS
PARTICLE PROPERTIES
POSITRONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
STRANGENESS
SYNTHESIS
TRANSACTINIDE ELEMENTS
TRANSFER FUNCTIONS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS