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Digitale Medien

The15N(p,α 0)12C reaction at stellar energies (1982)

Redder, A. ; Becker, H. W. ; Lorenz-Wirzba, H. ; [weitere]

Springer

The European physical journal 305 (1982), S. 325-333

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Details

ISSN: 1434-601X

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The15N(ρ, α0)12C reaction has been investigated in the energy range ofE p (lab)=78-810keV. The measurement of the excitation functions and α-particle angular distributions involved solid targets as well as a quasi-point supersonic jet gas target. The determination of absolute cross sections has been carried out with the gas target. The observed energy dependence of the total cross sections can be described in terms of two-level Breit-Wigner shapes including the resonances atE p (J π)=335(1−) and 1,028(1−)keV. The data lead to a zero-energy intercept of the astrophysicalS(E) factor ofS(0)= 65±4MeV-b. The angular distributions are asymmetric around 90° and require an additional amplitude in the reaction mechanism, which interferes predominantly with the 335 keV resonance. The origin of this background amplitude is discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01419081

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