The European Physical Journal A

, 48:179

Direct and β-delayed multi-proton emission from atomic nuclei with a time projection chamber: the cases of 43Cr, 45Fe, and 51Ni

  • L. Audirac
  • P. Ascher
  • B. Blank
  • C. Borcea
  • B. A. Brown
  • G. Canchel
  • C. E. Demonchy
  • F. de Oliveira Santos
  • C. Dossat
  • J. Giovinazzo
  • S. Grévy
  • L. Hay
  • J. Huikari
  • S. Leblanc
  • I. Matea
  • J. -L. Pedroza
  • L. Perrot
  • J. Pibernat
  • L. Serani
  • C. Stodel
  • J. -C. Thomas
Regular Article - Experimental Physics

DOI: 10.1140/epja/i2012-12179-1

Cite this article as:
Audirac, L., Ascher, P., Blank, B. et al. Eur. Phys. J. A (2012) 48: 179. doi:10.1140/epja/i2012-12179-1

Abstract

The two-proton radioactivity of 45Fe was studied experimentally with a time projection chamber. The aim of the experiment was the reconstruction of the proton tracks in three dimensions. Energy and angular correlations have been determined and the data are compared with theoretical models, in particular with a three-body model. Moreover, the decay of 43Cr was studied and β-delayed one-, two- and three-proton emission could be established. The correlations observed for β-delayed two-proton emission favour a sequential emission. Finally, β-delayed two-proton emission was observed for the first time for 51Ni.

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • L. Audirac
    • 1
  • P. Ascher
    • 1
  • B. Blank
    • 1
  • C. Borcea
    • 2
  • B. A. Brown
    • 3
  • G. Canchel
    • 1
  • C. E. Demonchy
    • 1
  • F. de Oliveira Santos
    • 4
  • C. Dossat
    • 1
  • J. Giovinazzo
    • 1
  • S. Grévy
    • 4
  • L. Hay
    • 1
  • J. Huikari
    • 1
  • S. Leblanc
    • 1
  • I. Matea
    • 5
  • J. -L. Pedroza
    • 1
  • L. Perrot
    • 5
  • J. Pibernat
    • 1
  • L. Serani
    • 1
  • C. Stodel
    • 4
  • J. -C. Thomas
    • 4
  1. 1.Centre d’Etudes Nucléaires de Bordeaux GradignanUniversité Bordeaux 1 - UMR 5797 CNRS/IN2P3Gradignan CedexFrance
  2. 2.National Institute for Physics and Nuclear EngineeringBucharest-MargureleRomania
  3. 3.Department of Physics and Astronomy and National Superconducting Cyclotron LaboratoryMichigan State UniversityEast LansingUSA
  4. 4.Grand Accélérateur National d’Ions LourdsCEA/DSM-CNRS/IN2P3Caen Cedex 5France
  5. 5.Institut de Physique NucléaireOrsayFrance