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Impact of 16O(e,e'α)12C Measurements on the 12C(α, γ)16O Astrophysical Reaction Rate

Journal Article · · Physical Review C, Nuclear Physics
 [1];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States)
+ Show Author Affiliations
The 12C(α,γ)16O reaction, an important component of stellar helium burning, has a key role in nuclear astrophysics. It has direct impact on the evolution and final state of massive stars and also influences the elemental abundances resulting from nucleosynthesis in such stars. Providing a reliable estimate for the energy dependence of this reaction at stellar helium burning temperatures has been a longstanding and important goal. In this work, we study the role of potential new measurements of the 16O(e,e′α)12C reaction in reducing the overall uncertainty. Here, a multilevel R-matrix analysis is used to make extrapolations of the astrophysical S factor for the 12C(α,γ)16O reaction to the stellar energy of 300 keV. The statistical precision of the S-factor extrapolation is determined by performing multiple fits to existing E1 and E2 ground state capture data, including the impact of possible future measurements of the 16O(e,e′α)12C reaction. In particular, we consider a proposed MIT experiment that would make use of a high-intensity low-energy electron beam that impinges on a windowless oxygen gas target as a means to determine the total E1 and E2 cross sections for this reaction.
Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1576974
Journal Information:
Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 6 Vol. 100; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

The E1 and E2 capture amplitudes in 12C(α,γ0)16O journal December 1999
The 12C(α, γ)16O reaction and stellar helium burning journal November 1974
The 12C(α, γ)16O cross section at stellar energies journal January 1987
A new measurement of the E1 amplitude in 12C(α,γ0)16O journal May 2001
Nuclear data needs for the study of nucleosynthesis in massive stars journal May 2003
A new study for 16 at the energies of nuclear astrophysics interest: The inverse of key nucleosynthesis reaction 12
  • Xu, Y.; Xu, W.; Ma, Y. G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 581, Issue 3 https://doi.org/10.1016/j.nima.2007.08.078
journal November 2007
Bubble chambers for experiments in nuclear astrophysics
  • DiGiovine, B.; Henderson, D.; Holt, R. J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 781 https://doi.org/10.1016/j.nima.2015.01.060
journal May 2015
Study of the 6.05 MeV cascade transition in C12(α,γ)O16 journal September 2011
First determination of an astrophysical cross section with a bubble chamber: The N15(α,γ)F19 reaction journal February 2013
Underground nuclear astrophysics studies with CASPAR journal January 2016
LUNA: a laboratory for underground nuclear astrophysics journal July 2009
Nuclear Astrophysics With Gamma-Beams journal August 2018
A Simplex Method for Function Minimization journal January 1965
The Calculation of Errors by the Method of Least Squares journal April 1932
New approach to determining radiative capture reaction rates at astrophysical energies journal August 2019
E 1 and E 2 S factors of C 12 ( α , γ 0 ) O 16 from γ -ray angular distributions with a 4 π -detector array journal May 2006
E 1 and E 2 cross sections of the C 12 ( α , γ 0 ) O 16 reaction using pulsed α beams journal December 2009
12 C( α , γ ) 16 O studied with the Karlsruhe 4 π BaF 2 detector journal July 2012
Precise determination of charge-dependent pion-nucleon-nucleon coupling constants journal June 2017
Impact of O 16 ( γ , α ) C 12 measurements on the C 12 ( α , γ ) O 16 astrophysical reaction rate journal May 2019
Coincidence measurement of the 12 C(α,γ ) 16 O cross section at low energies journal April 1988
C 12 (α,γ ) 16 O cross sections at stellar energies journal September 1992
C 12 ( α , γ ) O 16 : The Key Reaction in Stellar Nucleosynthesis journal April 2001
R-Matrix Theory of Nuclear Reactions journal April 1958
Experimental and theoretical nuclear astrophysics: the quest for the origin of the elements journal April 1984
The C 12 ( α , γ ) O 16 reaction and its implications for stellar helium burning journal September 2017
New light in nuclear physics: The extreme light infrastructure journal January 2017
Underground Nuclear Astrophysics Experiment JUNA in China conference February 2017

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