Can the neutron-capture cross sections be measured with Coulomb dissociation?

  • Á. Horváth
  • K. Ieki
  • Á. Kiss
  • A. Galonsky
  • M. Thoennessen
  • T. Baumann
  • D. Bazin
  • C. A. Bertulani
  • C. Bordeanu
  • N. Carlin
  • M. Csanád
  • F. Deák
  • P. DeYoung
  • N. Frank
  • T. Fukuchi
  • Zs. Fülöp
  • A. Gade
  • D. Galaviz
  • C. Hoffman
  • R. Izsák
  • W. A. Peters
  • H. Schelin
  • A. Schiller
  • R. Sugo
  • Z. Seres
  • G. I. Veres
Nuclear Physics in Astrophysics II

Abstract.

In this paper we present first results from a 8Li electromagnetic neutron-breakup experiment. Specific reactions studied were Pb( 8Li, 7Li+n) Pb and C( 8Li, 7Li+n) C at 41MeV/nucleon beam energy. This is an effort to compare the results of a Coulomb dissociation experiment with the well determined (n,γ) reaction cross sections at astrophysical energies. The angular dependence of the cross section above 7 degree, which is the grazing angle of 8Li- Pb system, is similar in shape for lead and carbon and approximately proportional to A2/3 in magnitude indicating that the nuclear dissociation is the main component in this region. At very forward angles the angular distributions differ significantly and the electromagnetic dissociation dominates for the lead, although the nuclear contribution is not negligible.

PACS.

25.40.Lw Radiative capture 25.70.De Coulomb excitation 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • Á. Horváth
    • 1
  • K. Ieki
    • 2
  • Á. Kiss
    • 1
  • A. Galonsky
    • 3
    • 4
  • M. Thoennessen
    • 3
    • 4
  • T. Baumann
    • 3
  • D. Bazin
    • 3
  • C. A. Bertulani
    • 5
  • C. Bordeanu
    • 6
  • N. Carlin
    • 7
  • M. Csanád
    • 1
  • F. Deák
    • 1
  • P. DeYoung
    • 3
    • 8
  • N. Frank
    • 3
    • 4
  • T. Fukuchi
    • 2
  • Zs. Fülöp
    • 9
  • A. Gade
    • 3
  • D. Galaviz
    • 3
  • C. Hoffman
    • 3
    • 10
  • R. Izsák
    • 1
  • W. A. Peters
    • 3
    • 4
  • H. Schelin
    • 11
  • A. Schiller
    • 3
  • R. Sugo
    • 2
  • Z. Seres
    • 12
  • G. I. Veres
    • 1
  1. 1.Department of Atomic PhysicsEötvös Loránd UniversityHungary
  2. 2.Department of PhysicsRikkyo UniversityTokyoJapan
  3. 3.National Superconducting Cyclotron LaboratoryMichigan State UniversityEast LansingUSA
  4. 4.Department of Physics and AstronomyMichigan State UniversityUSA
  5. 5.Department of PhysicsUniversity of ArizonaTucsonUSA
  6. 6.Department of PhysicsUniversity of WashingtonSeattleUSA
  7. 7.Instituto de FısicaUniversidade de S ao PauloS ao PauloBrazil
  8. 8.Department of Physics and EngineeringHope CollegeHollandUSA
  9. 9.ATOMKI Institute of Nuclear ResearchDebrecenHungary
  10. 10.Department of PhysicsFlorida State UniversityTallahasseeUSA
  11. 11.Centro Federal de Educaç ao Tecnológica do ParanáCuritibaBrazil
  12. 12.KFKI Research Institute for Particle and Nuclear PhysicsBudapestHungary

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