Abstract
During the seventies and eighties a long experimental research program on the quasi-free reactions at low energy was carried out by a small group of nuclear physicists, where Claudio Spitaleri was one of the main protagonists. Nowadays, a posteriori , the results of these studies can be considered an essential step preparatory to the application of the Trojan Horse Method (THM) in Nuclear Astrophysics.
Highlights
Everything began in the seventies, with the publication on Nuclear Physics A of a paper reporting the results of an experiment carried out by a group of Japanese researchers on the three alpha-particles produced in the 3He + 9Be reaction at incident energy of 4 MeV [1]
The coincidence detection of two of the outgoing alpha particles showed that, in addition to the usual sequential decay through states of 8Be, another mechanism contributed to the spectra, giving place to a bump centered at the minimum momentum of the undetected alpha
On the other hand the use of the Plane Wave IA (PWIA) instead of the more realistic Distorted Wave Impulse Approximation (IA) (DWIA) approach was justified since it has been shown that in many cases the PWIA satisfactorily approximates the DWIA in the region close to the minimum spectator momentum
Summary
Everything began in the seventies, with the publication on Nuclear Physics A of a paper reporting the results of an experiment carried out by a group of Japanese researchers on the three alpha-particles produced in the 3He + 9Be reaction at incident energy of 4 MeV [1]. During the seventies and eighties a long experimental research program on the quasi-free reactions at low energy was carried out by a small group of nuclear physicists, where Claudio Spitaleri was one of the main protagonists.
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