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Title: Reaction rate for carbon burning in massive stars

Journal Article · · Physical Review C
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  1. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Florida State Univ., Tallahassee, FL (United States). Dept. of Physics
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Univ. of Connecticut, Storrs, CT (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Univ. of Maryland, College Park, MD (United States). Dept. of Chemistry and Biochemistry
  6. Univ. de Strasbourg, Strasbourg (France)
  7. Univ. de Strasbourg, Strasbourg (France); Univ. of Strasbourg Inst. for Advanced Study (USIAS), Strasbourg (France)
  8. Univ. of York, Heslington, York (United Kingdom). Dept. of Physics
  9. Univ. Paris-Sud, Orsay (France)
  10. TRIUMF, Vancouver, BC (Canada)
  11. Sun Yat-Sen Univ., Zhuhai, (China). Sino-French Inst. of Nuclear Engineering and Technology
  12. Inst. of Modern Physics, Lanzhou (China)
  13. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  14. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy

Carbon burning is a critical phase for nucleosynthesis in massive stars. The conditions for igniting this burning stage, and the subsequent isotope composition of the resulting ashes, depend strongly on the reaction rate for 12C+12C fusion at very low energies. Results for the cross sections for this reaction are influenced by various backgrounds encountered in measurements at such energies. In this paper, we report on a new measurement of 12C+12C fusion cross sections where these backgrounds have been minimized. It is found that the astrophysical S factor exhibits a maximum around Ecm=3.5–4.0 MeV, which leads to a reduction of the previously predicted astrophysical reaction rate.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); University of North Carolina, Chapel Hill, NC (United States); Duke Univ., Durham, NC (United States). Triangle Universities Nuclear Laboratory
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357; FG02-96ER40978; FG02-97ER41041; FG02-97ER41033
OSTI ID:
1425275
Alternate ID(s):
OSTI ID: 1416458; OSTI ID: 1658909; OSTI ID: 1658933
Journal Information:
Physical Review C, Vol. 97, Issue 1; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 59 works
Citation information provided by
Web of Science

References (38)

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  • Jiang, C. L.; Rehm, K. E.; Fang, X.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 682 https://doi.org/10.1016/j.nima.2012.03.051
journal August 2012
Existence of One-Body Barrier Revealed in Deep Sub-Barrier Fusion text January 2007
Effects of mutual excitations in the fusion of carbon isotopes text January 2011
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Signature of Shallow Potentials in Deep Sub-barrier Fusion Reactions text January 2007

Cited By (4)

Mean-field description of heavy-ion scattering at low energies and fusion journal November 2018
An increase in the 12C + 12C fusion rate from resonances at astrophysical energies journal May 2018
Nuclear physics of the outer layers of accreting neutron stars journal July 2018
Nuclear Physics of the Outer Layers of Accreting Neutron Stars text January 2018

Figures / Tables (6)


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