0000000000274060

AUTHOR

H. P. Trautvetter

showing 2 related works from this author

The astrophysical implications of low-energy resonances in 22Ne + α

1993

Abstract The 22 Ne( 6 Li, d) α-transfer reaction has been used to search for α-unbound levels in 26 Mg of importance for resonant α-capture on 22 Ne in stellar helium burning. To determine the resonance strengths of the observed states the 22 Ne(α, n) 25 Mg reaction was investigated in the energy range between 600 and 900 keV. One resonance was identified and its strength determined. The astrophysical implications of the present results are discussed.

Nuclear reactionPhysicsNuclear physicsNuclear and High Energy PhysicsRange (particle radiation)Low energychemistryResonancechemistry.chemical_elementAtomic physicsHeliumNuclear Physics A
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Helium burning of22Ne

1989

The22Ne(α, γ)26Mg and22Ne(α, n)25Mg reactions were investigated forE α(lab) from 0.71 to 2.25 MeV. Neon gas enriched to 99% in22Ne was recirculated in a differentially pumped gas target system of the extended type. Theγ-ray transitions were observed with Ge(Li) detectors and the neutrons with3He ionization chambers. A previously known resonance at ER(lab)=2.05 MeV was verified and 15 new resonances were found in the energy range covered, with the lowest at ER(lab)=0.83 MeV. Information on resonance energies, widths, strengths,γ-ray branching ratios, as well asJ π assignments, is reported. The energy range investigated corresponds to the important temperature range ofT 9 from 0.3 to 1.4 (109…

PhysicsNuclear and High Energy PhysicsNeonchemistryNucleosynthesisIonizationResonanceNuclear fusionNeutron sourcechemistry.chemical_elementNeutronAtomic physicsHeliumZeitschrift f�r Physik A Atomic Nuclei
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