Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Absolute cross section of the C 12 (p,γ) N 13 reaction

Journal Article · · Physical Review. C
Solar neutrino measurements have recently reached a level of sensitivity such that CNO fluxes can now be experimentally determined. While these first measurements are still only sensitive to the higher energy neutrinos resulting from the β+ decays of 15Ο produced by the 14Ν ⁡(p,$$\gamma$$)⁢ 15O reaction, future measurements will work towards detection of neutrinos from the β+ decay of 13N from the 12C ⁡(p,$$\gamma$$)⁢ 13N reaction. Here, this paper reports on a recent measurement of the 12C ⁡(p,$$\gamma$$)⁢ 13N reaction covering a broad laboratory energy range between 1.0 and 2.5 MeV. The measurement was made to better determine the overall normalization of the absolute cross section and to explore the interference effects between the two broad, overlapping resonances at proton energies of 0.460 and 1.689 MeV and the direct capture to the ground state of 13N in the framework of a multichannel R-matrix analysis. This work takes into account previous radiative capture as well as elastic 12C (p, p) 12C scattering data, making uncertainty estimations using a Bayesian framework, to determine a reliable extrapolation of the low energy S factor towards the stellar energy range of CNO hydrogen burning. These new experimental results, and a detailed investigation of the past literature data, suggest that the resonant component of the cross section should be 30% lower than previously accepted.
Research Organization:
Ohio Univ., Athens, OH (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
FG02-88ER40387; NA0004065
OSTI ID:
2419357
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 3 Vol. 108; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (51)

Elasticp+12C scattering between 0.3 and 2 MeV journal March 1976
The History and Impact of the CNO Cycles in Nuclear Astrophysics journal February 2018
Determination of the 12C(p, γ)13N reaction rates from the 12C(7Li,6He)13N reaction journal April 2010
Use of the 27Al(p,γ)28Si, Ep = 992 keV resonance as a gamma-ray intensity standard journal December 1977
Energy levels of light nuclei. VI journal May 1959
Elastic scattering and radiative capture of protons by C13 journal November 1960
Interference effects in the C 12 (p, γ)N 13 reaction journal June 1963
Interference effects in 12C(p, γ)13N and direct capture to unbound states journal July 1974
Energy levels of light nuclei A = 13–15 journal September 1976
Energy levels of light nuclei A = 13–15 journal February 1991
The 14N(p,)15O low-energy -factor journal July 2001
A compilation of charged-particle induced thermonuclear reaction rates journal August 1999
A detailed study of the 12C(d,p0)13C reaction at detector angles between 135° and 170°, for the energy range Ed,lab=900–2000keV
  • Kokkoris, M.; Misaelides, P.; Kossionides, S.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 249, Issue 1-2 https://doi.org/10.1016/j.nimb.2006.03.083
journal August 2006
Differential cross-section measurements for the 12C(d,p0)13C reaction and applications to surface analysis of materials
  • Pacheco de Carvalho, J. A. R.; Reis, A. D.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 266, Issue 10 https://doi.org/10.1016/j.nimb.2008.03.045
journal May 2008
SRIM – The stopping and range of ions in matter (2010)
  • Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12 https://doi.org/10.1016/j.nimb.2010.02.091
journal June 2010
NACRE II: an update of the NACRE compilation of charged-particle-induced thermonuclear reaction rates for nuclei with mass number A<16 journal November 2013
Artificial Production of a New Kind of Radio-Element journal February 1934
Production of Induced Radioactivity by High Velocity Protons journal March 1934
Experimental evidence of neutrinos produced in the CNO fusion cycle in the Sun journal November 2020
The Low-lying Levels of 13C and 13N journal January 1980
The 12C(a,g)16O Cross Section at Low Energies journal January 1991
The 12C(p, g)13N Cross Section near the Ep = 0·46 MeV Peak journal January 1992
CN Cycle Solar Neutrinos and the Sun's Primordial Core Metallicity journal November 2008
emcee : The MCMC Hammer
  • Foreman-Mackey, Daniel; Hogg, David W.; Lang, Dustin
  • Publications of the Astronomical Society of the Pacific, Vol. 125, Issue 925 https://doi.org/10.1086/670067
journal March 2013
Unstable Helium Shell Burning on Accreting White Dwarfs journal June 2009
Indirect techniques in nuclear astrophysics: a review journal October 2014
The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures journal March 2017
The AME2016 atomic mass evaluation (II). Tables, graphs and references journal March 2017
On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae journal November 2022
Pop III i-process nucleosynthesis and the elemental abundances of SMSS J0313−6708 and the most iron-poor stars journal November 2017
Radiative Capture of Protons in Carbon from 80 to 126 kev journal July 1957
Carbon Radioactivity and Other Resonance Transmutations by Protons journal August 1935
Further Observations on the Production ofN13 journal March 1938
Gamma-Radiation from Light Nuclei under Proton Bombardment journal July 1949
Cross Section of theC12(p,γ)N13Reaction at Low Energies journal January 1950
The Cross Section for the Radiative Capture of Protons byC12near 100 Kev journal January 1950
The Thick Target Yield of the ReactionC12(p,γ)N13(β+)C13 journal December 1951
Radiative Capture of Protons byC13 journal January 1952
The Analysis of Angular Correlation and Angular Distribution Data journal August 1953
Investigation of the N14(p,γ)O15 reaction and its impact on the CNO cycle journal December 2022
Effects of channel and potential radiative transitions in the O 17 ( γ ,   n 0 ) O 16 reaction journal November 1978
Alternative parametrization of R -matrix theory journal October 2002
New measurements of the astrophysical S factor for 12 C ( p , γ ) 13 N reaction at low energies and the asymptotic normalization coefficient (nuclear vertex constant) for the p + 12 C → 13 N reaction journal September 2008
Cross-section measurement of theF18(α,p)Ne21reaction and possible implication for neutron production in explosive helium burning journal August 2009
AZURE: An R -matrix code for nuclear astrophysics journal April 2010
Measurement of the E r c . m . = 259  keV resonance in the N 14 ( p , γ ) O 15 reaction journal August 2016
Using the standard solar model to constrain solar composition and nuclear reaction S factors journal February 2013
Gamma-Radiation from Excited States of Light Nuclei journal January 1948
S-factor of 14N(p,γ)15O at astrophysical energies⋆ journal September 2005
Asymptotic normalization coefficient for $${{}^{12}\mathrm{C}}+p\rightarrow {{}^{13}\mathrm{N}}$$ from the $${}^{12}{\mathrm{C}}({}^{10}\mathrm{B},{}^{9}{\mathrm{Be}}){}^{13}\mathrm{N}$$ reaction and the $${}^{12}\mathrm{C}(p,\gamma ){}^{13}\mathrm{N}$$ astrophysical S factor journal February 2022
Performing Bayesian Analyses With AZURE2 Using BRICK: An Application to the 7Be System journal June 2022

Similar Records

C13(n,2nγ)C12 γ -ray production in the 14–16 MeV incident neutron energy range
Journal Article · Sun Jun 13 20:00:00 EDT 2021 · Physical Review. C · OSTI ID:1889969

Investigation of secondary γ -ray angular distributions using the N15(p,α1γ)C*12 reaction
Journal Article · Sun Jun 13 20:00:00 EDT 2021 · Physical Review. C · OSTI ID:1871153