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Study of β-delayed charged particle emission of 11Li: Evidence of new decay channels

M. Madurga ; M. J. G. Borge ; J. C. Angelique ; Ling Bao (Institutionen för fundamental fysik, Subatomär fysik) ; U. Bergmann ; A. ButÇŽ ; J. Cederkäll ; J. M. Daugas ; C. Aa Diget ; L. M. Fraile ; H. O. U. Fynbo ; H. B. Jeppesen ; Björn Jonson (Institutionen för fundamental fysik, Subatomär fysik) ; E. Lienard ; F. Marechal ; M. Marques ; V. Meot ; F. Negoita ; T. Nilsson ; Göran Nyman (Institutionen för fundamental fysik, Subatomär fysik) ; F. Perrot ; K. Riisager ; O. Roig ; O. Tengblad ; E. Tengborn ; M. Turrion ; Katarina Wilhelmsen Rolander (Institutionen för fundamental fysik, Subatomär fysik)
Journal of Physics: Conference Series (17426588 (ISSN)). Vol. 111 (2008), 1,
[Artikel, refereegranskad vetenskaplig]

The break-up of the 18.2 MeV state in 11Be was studied in a 11Li β-decay experiment. We report here on the study of the dominating breakup channels involving na6He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, 7He, are involved. A Monte-Carlo simulation of the sequential channel, 11Be* → α + 7He → nα6He was performed and compared to the experimental data and to a simulation of the direct break-up of the 18.2 MeV state nα6He by phase space energy distribution. The energy-versus-energy plot are explained by the sequential simulation but not by the phase space simulation. © 2008 IOP Publishing Ltd.



Denna post skapades 2009-10-20.
CPL Pubid: 100337

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Fysik

Chalmers infrastruktur