Friday 21 November, 2014

Its official! `Doubly magic` Tin-100 has fastest beta decay of all atomic nuclei

Published On: Thu, Jun 21st, 2012 | Physics | By BioNews

According to the shell model of nuclear physics, 50 is a “magic number” that gives rise to special properties.

Tin-100, with 50 protons and 50 neutrons, is “doubly magic,” making it particularly interesting for nuclear physicists.

Shooting xenon-124 ions at a sheet of beryllium, the international team headed by physicists from the TU Muenchen, the Cluster of Excellence Origin and Structure of the Universe and the GSI in Darmstadt succeeded in creating tin-100 and analyzing its subsequent decay.

Using specially developed particle detectors, they were able to measure the half-life and decay energy of tin-100 and its decay products. Their experiments confirmed that tin-100 has the fastest beta decay of all atomic nuclei, as previously predicted by theoretical physicists.

A repeat of the experiment is slated for the near future at the RIKEN research center in Japan.

The beam intensity at RIKEN is higher in the mean time, allowing even more precise measurements. The aim of the research work is to improve the understanding of processes in the formation of heavy elements during explosions on the surface of compact stars.

In addition, the researchers hope to draw conclusions on the neutrino mass from the measurements.

Leave a comment

XHTML: You can use these html tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

More from Physics
  • ‘God particle’ theorists receive Nobel Prize in physics
  • Researchers Create Novel Optical Fibers
  • Graphene plasmonics beats the drug cheats
  • Breakthrough in large-scale quantum computing
  • American, Frenchman win Nobel Prize in physics for Particle control in a quantum world
  • Visit us on Google+