The Strength of the analog and Gamow-Teller giant resonances and hindrance of the 2 neutrino Beta Beta: Decay rate

Jul, 1998
11 pages
Published in:
  • Phys.Lett.B 443 (1998) 51-57
e-Print:
Report number:
  • KVI-1388

Citations per year

199920052011201720230123456
Abstract:
An approach for describing the hindrance of the nuclear 2\nu\beta\beta-decay amplitude is proposed. The approach is based on a new formula obtained by a model-independent transformation of the initial expression for the amplitude. This formula takes explicitly into account the hindrance of the decay-amplitude due to the presence of the collective Gamow-Teller state. Calculations are performed within the simplest version of the approach. Calculated and experimental 2\nu\beta\beta halve-lives are compared for a wide range of nuclei.
Note:
  • 11 pages, 1 table Report-no: KVI-1388
  • nucleus: semileptonic decay
  • double-beta decay: (2neutrino)
  • nucleus: lifetime
  • nuclear physics: collective phenomena
  • numerical calculations: interpretation of experiments