New high accuracy measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction rate at astrophysical temperatures

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.032801· OSTI ID:21419505

Sergi, M L; Spitaleri, C; La Cognata, M; Cherubini, S; Crucilla, V; Gulino, M; Kiss, G G; Lamia, L; Pizzone, R G; Puglia, S M. R.; Rapisarda, G G; Romano, S; Tudisco, S; Tumino, A ^[1]; Coc, A ^[2]; Mukhamedzhanov, A ^[3]; Burjan, S V; Hons, Z; Kroha, V ^[4]; Hammache, F ^[5]

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1. Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Universita di Catania, and INFN-Laboratori Nazionali del Sud, Catania (Italy)
2. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, UMR 8609, CNRS/IN2P3 and Universite Paris Sud 11, Batiment 104, F-91405 Orsay Campus (France)
3. Cyclotron Institute, Texas A and M University College Station, Texas (United States)
4. Nuclear Physics Institute of ASCR Rez near Prague (Czech Republic)
5. Institut de Physique Nucleaire, UMR-8608, CNRS/IN2P3 and Universite Paris-Sud XI, F-91406 Orsay (France)

The {sup 17}O(p,{alpha}){sup 14}N reaction is of fundamental relevance in several astrophysical scenarios, such as novae, asymptotic giant branch nucleosynthesis, and {gamma}-ray astronomy. We report on the indirect measurement of the {sup 17}O(p,{alpha}){sup 14}N reaction bare-nucleus cross section in the low-energy region. In particular, the two resonances at E{sub R}{sup c.m.}=65 keV and E{sub R}{sup c.m.}=183 keV, which dominate the reaction rate inside the Gamow window, have been observed, and the strength of the 65 keV resonance has been deduced. The reaction rate determination and the comparison with the results of the previous measurements are also discussed.

• OSTI ID: 21419505
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevC.82.032801; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
ALPHA DECAY
ASTROPHYSICS
ASYMPTOTIC SOLUTIONS
COMPARATIVE EVALUATIONS
CROSS SECTIONS
GAMMA ASTRONOMY
KEV RANGE
NITROGEN 14
NOVAE
NUCLEOSYNTHESIS
OXYGEN 17 TARGET
PROTON REACTIONS
REACTION KINETICS
RESONANCE
ASTRONOMY
BARYON REACTIONS
BINARY STARS
CHARGED-PARTICLE REACTIONS
DECAY
ENERGY RANGE
ERUPTIVE VARIABLE STARS
EVALUATION
HADRON REACTIONS
ISOTOPES
KINETICS
LIGHT NUCLEI
MATHEMATICAL SOLUTIONS
NITROGEN ISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
PHYSICS
STABLE ISOTOPES
STARS
SYNTHESIS
TARGETS
VARIABLE STARS