Search for cluster emission and extremely deformed shapes using charged-particle spectroscopy

  • C. Beck
  • M. Rousseau
  • P. Papka
  • A. Sànchez i Zafra
  • C. Bhattacharya
  • V. Rauch
  • P. Bednarczyk
  • S. Courtin
  • O. Dorvaux
  • F. Haas
  • A. Nourreddine
  • I. Piqueras
  • J. Robin
  • L. El Bakali
  • C. Enaux
  • E. Galmar
  • S. Szilner
  • O. Stezowski
  • A. Prévost
  • S. Thummerer
  • W. von Oertzen
  • A. Hachem
  • E. Martin
  • A. Fahli
  • A. Morsad
  • A. Szanto de Toledo
  • S. J. Sanders
Article

Abstract

The possible occurrence of highly deformed configurations is investigated in the N=Z nuclei 40Ca, 44Ti, and 56Ni as formed in the 28Si+12C, 16O+28Si, and 28Si+28Si reactions by using the properties of the emitted light charged particles (LCP). The energy spectra, in-plane and out-of-plane angular correlations of LCP’s are analysed for each of the 3 studied reactions within the framework of the statistical model. Strong deformation effects are deduced from Hauser-Feshbach calculations performed with the Monte Carlo code CACARIZO by using a consistent set of parameters with spin-dependent level densities. The analysis of α particles in coincidence with 32S fragments emitted in 28Si+12C shows a strong contribution from a 8Be cluster emission. The binary nature of this cluster emission has been verified in three other reactions involving a 12C target: 27A1+12C, 31P+12C, and 32S+12C.

Keywords

cluster emission superdeformation Hauser-Feshbach calculations 

PACS

24.60.Dr 25.70.-z 

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Copyright information

© Akadémiai Kiadó 2003

Authors and Affiliations

  • C. Beck
    • 1
  • M. Rousseau
    • 1
  • P. Papka
    • 1
  • A. Sànchez i Zafra
    • 1
  • C. Bhattacharya
    • 1
    • 8
  • V. Rauch
    • 1
  • P. Bednarczyk
    • 1
  • S. Courtin
    • 1
  • O. Dorvaux
    • 1
  • F. Haas
    • 1
  • A. Nourreddine
    • 1
  • I. Piqueras
    • 1
  • J. Robin
    • 1
  • L. El Bakali
    • 1
  • C. Enaux
    • 1
  • E. Galmar
    • 1
  • S. Szilner
    • 1
    • 9
  • O. Stezowski
    • 1
    • 2
  • A. Prévost
    • 2
  • S. Thummerer
    • 3
  • W. von Oertzen
    • 3
  • A. Hachem
    • 4
  • E. Martin
    • 4
  • A. Fahli
    • 5
  • A. Morsad
    • 5
  • A. Szanto de Toledo
    • 6
  • S. J. Sanders
    • 7
  1. 1.Institut de Recherches SubatomiquesStrasbourg, Cedex 2France
  2. 2.Institut de Physique Nucléaire de LyonVilleurbanneFrance
  3. 3.Hahn-Meitner-Institut BerlinBerlinGermany
  4. 4.Université de Nice-Sophia-AntipolisNiceFrance
  5. 5.Université Hassan II - MohammadiaCasablancaMarocco
  6. 6.Instituto de Fisica da Universidade de São PauloSão PauloBrazil
  7. 7.University of KansasLawrenceUSA
  8. 8.Variable Energy Cyclotron CentreKolkataIndia
  9. 9.INFNLaboratori Nazionali di LegnaroLegnaroItaly

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