A new method of measuring the~$^{12}$C+$^{12}$C fusion cross sections towards astrophysical energies

ORAL

Abstract

The~$^{12}$C+$^{12}$C fusion reaction plays a crucial role in a number of important astrophysical scenarios. The past studies of carbon fusion reactions at sub-barrier energies were limited by the usage of small detectors with low efficiency. A new measurement method, particle-gamma coincidence, has been tested using Gammasphere at ANL in the center-of-mass energy range 4.0-5.0 MeV. We are building a large area silicon-detector array and a new Ge-detector array (GEORGINA) which will be coupled with the forthcoming high-current accelerator at the University of Notre Dame. Preliminary results from our test experiment will be presented.

*This work's supported by NSF under Grant No. PHY-0758100 and PHY-0822648, DOE office of Science through DE-AC02-06CH11357, NNSF of China under Grant No.11021504.

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Authors

  • X. Fang

  • C.L. Jiang

  • M. Alcorta

  • B.B. Back

  • C.M. Deibel

  • B. DiGiovine

  • J.P. Greene

  • D.J. Henderson

  • R.V.F. Janssens

  • C.J. Lister

  • S.T. Marley

  • R.C. Pardo

  • K.E. Rehm

  • D. Seweryniak

  • C. Ugalde

  • S. Zhu

    • Argonne National Laboratory

  • A. Alongi

  • B. Bucher

  • C. Cahillane

  • P. Collon

  • X.T. Tang

    • University of Notre Dame

  • E. Dahlstrom

    • Rice University