A new determination of the E1 amplitude of C-12(alpha, gamma)O-16 at energies of astrophysical interest

L Gialanella, L Campajola, A D'Onofrio, G Imbriani, A Ordine, V Roca, M Romano, C Sabbarese, F Terrasi, M Aliotta, D Rogalla, F Strieder, S Theis, C Rolfs, F Schumann, H P Trautvetter, G Gyurki, E Somorjai, U Greife, C AgodiR Alba, A Del Zoppo, P Figuera, P Sapienza

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The reaction C-12(alpha, gamma)O-16 has a strong influence on both stellar evolution and nucleosynthesis after the helium burning stage in massive stars. The El amplitude of this astrophysical important reaction was measured in inverse kinematics using a He-4 windowless gas target and an intense 12C ion beam in combination with an array of HPGe detectors. The results of this measurement were extrapolated to the relevant energy for helium burning (Eo = 300 keV) using the R-matrix formalism of nuclear reactions. The error on the extrapolated value was determined via a Monte Carlo procedure. The results of this experiment and of their extrapolation to E-0 are presented and compared with previous data.

Original languageEnglish
Title of host publicationNUCLEAR PHYSICS IN THE 21ST CENTURY
EditorsE Norman, L Schroeder, G Wozniak
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Pages466-469
Number of pages4
ISBN (Print)0-7354-0056-3
Publication statusPublished - 2002
EventInternational Nuclear Physics Conference - BERKELEY
Duration: 30 Jul 20013 Aug 2001

Conference

ConferenceInternational Nuclear Physics Conference
CityBERKELEY
Period30/07/013/08/01

Keywords

  • STELLAR ENERGIES
  • CROSS-SECTION
  • C-12(ALPHA,GAMMA)O-16

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