Measurement of O17(p,γ)F18 between the narrow resonances at Erlab=193 and 519keV

J. R. Newton; C. Iliadis; A. E. Champagne; J. M. Cesaratto; S. Daigle; R. Longland

doi:10.1103/PhysRevC.81.045801

Measurement of O17(p,γ)F18 between the narrow resonances at Erlab=193 and 519keV

J. R. Newton, C. Iliadis, A. E. Champagne, J. M. Cesaratto, S. Daigle, R. Longland

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The O17(p,γ)F18 reaction sensitively influences hydrogen burning nucleosynthesis in a number of stellar sites, including classical novae. These thermonuclear explosions, taking place in close binary star systems, produce peak temperatures in the range of T=100-400 MK. Recent results indicate that the thermonuclear rates for this reaction in this particular temperature range are dominated by the direct capture process. We report on the measurement of the O17(p,γ)F18 cross section between the narrow resonances at Erlab=193 and 519keV, where the S factor is expected to vary smoothly with energy. We extract the direct capture contribution from the total cross section and demonstrate that earlier data are inconsistent with our results.

Original language	English (US)
Article number	045801
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.81.045801
State	Published - Apr 2 2010
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.81.045801

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abstract = "The O17(p,γ)F18 reaction sensitively influences hydrogen burning nucleosynthesis in a number of stellar sites, including classical novae. These thermonuclear explosions, taking place in close binary star systems, produce peak temperatures in the range of T=100-400 MK. Recent results indicate that the thermonuclear rates for this reaction in this particular temperature range are dominated by the direct capture process. We report on the measurement of the O17(p,γ)F18 cross section between the narrow resonances at Erlab=193 and 519keV, where the S factor is expected to vary smoothly with energy. We extract the direct capture contribution from the total cross section and demonstrate that earlier data are inconsistent with our results.",

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AU - Newton, J. R.

AU - Iliadis, C.

AU - Champagne, A. E.

AU - Cesaratto, J. M.

AU - Daigle, S.

AU - Longland, R.

PY - 2010/4/2

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N2 - The O17(p,γ)F18 reaction sensitively influences hydrogen burning nucleosynthesis in a number of stellar sites, including classical novae. These thermonuclear explosions, taking place in close binary star systems, produce peak temperatures in the range of T=100-400 MK. Recent results indicate that the thermonuclear rates for this reaction in this particular temperature range are dominated by the direct capture process. We report on the measurement of the O17(p,γ)F18 cross section between the narrow resonances at Erlab=193 and 519keV, where the S factor is expected to vary smoothly with energy. We extract the direct capture contribution from the total cross section and demonstrate that earlier data are inconsistent with our results.

AB - The O17(p,γ)F18 reaction sensitively influences hydrogen burning nucleosynthesis in a number of stellar sites, including classical novae. These thermonuclear explosions, taking place in close binary star systems, produce peak temperatures in the range of T=100-400 MK. Recent results indicate that the thermonuclear rates for this reaction in this particular temperature range are dominated by the direct capture process. We report on the measurement of the O17(p,γ)F18 cross section between the narrow resonances at Erlab=193 and 519keV, where the S factor is expected to vary smoothly with energy. We extract the direct capture contribution from the total cross section and demonstrate that earlier data are inconsistent with our results.

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Measurement of O17(p,γ)F18 between the narrow resonances at Erlab=193 and 519keV

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