Electron capture processes in intermediate mass stars

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Intermediate mass stars develop a degenerate core constituted of O, Ne and Mg during their evolution. As the density in the core increases electron capture sets in igniting Ne and O burning. Particularly important is electron capture on 20Ne that has been found recently to be dominated by a second forbidden transition from the 0+ ground state of 20Ne to the 2+ ground state of 20F. We have performed shell-model calculations to determine the transition strength and provide an updated value of the electron capture rate and the expected branching ratio to the corresponding β-decay process.

Details

Authors
  • A. Idini
  • A. Brown
  • K. Langanke
  • G. Martínez-Pinedo
External organisations
  • Technical University of Darmstadt
  • University of Jyväskylä
  • Michigan State University
  • GSI Helmholtz Centre for Heavy Ion Research
  • Frankfurt Institute for Advanced Studies
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Title of host publicationProceedings of Science
Volume07-11-July-2015
Publication statusPublished - 2014 Jan 1
Publication categoryResearch
Peer-reviewedNo
Externally publishedYes
Event13th Nuclei in the Cosmos, NIC 2014 - Debrecen, Hungary
Duration: 2014 Jul 72014 Jul 11

Publication series

NameProceedings of Science
PublisherSissa Medialab srl
ISSN (Print)1824-8039

Conference

Conference13th Nuclei in the Cosmos, NIC 2014
CountryHungary
CityDebrecen
Period2014/07/072014/07/11