Parity-violating α-decay of the 3.56 MeV Jπ, T = 0+, 1 state of 6Li

A. Csótó, Karlheinz Langanke

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We study the parity-violating α + d decay of the lowest 0+ state of 6Li in a microscopic three-cluster model. The initial bound and the final scattering states are described consistently within the same model. The parity-violating decay width is calculated in perturbation theory using the parity-nonconserving nucleon-nucleon interaction of Desplanques, Donoghue and Holstein (DDH). We find that the decay width is sensitive to dynamical degrees of freedom which are beyond the α + p + n model, for example, α excitation and breakup. In our full model, which contains breathing excitations of the α particle and 3H+3He rearrangement, the parity-nonconserving decay width is ΓPNCαd = 3.97 × 10-9 eV, using the DDH weak coupling constants.

Original languageEnglish
Pages (from-to)131-140
Number of pages10
JournalNuclear Physics A
Volume601
Issue number2
DOIs
Publication statusPublished - 1996

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parity
decay
nucleon-nucleon interactions
breathing
excitation
perturbation theory
degrees of freedom
scattering

Keywords

  • Cluster model
  • Nuclear parity violation
  • Nuclear reactions with few-body systems
  • Weak interaction

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Parity-violating α-decay of the 3.56 MeV Jπ, T = 0+, 1 state of 6Li. / Csótó, A.; Langanke, Karlheinz.

In: Nuclear Physics A, Vol. 601, No. 2, 1996, p. 131-140.

Research output: Contribution to journalArticle

Csótó, A. ; Langanke, Karlheinz. / Parity-violating α-decay of the 3.56 MeV Jπ, T = 0+, 1 state of 6Li. In: Nuclear Physics A. 1996 ; Vol. 601, No. 2. pp. 131-140.
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