The Trojan horse method in nuclear astrophysics

Details The Trojan horse method in nuclear astrophysics The Trojan horse method in nuclear astrophysics

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..561..116a&link_type=abstract

TOURS SYMPOSIUM ON NUCLEAR PHYSICS IV: TOURS 2000. AIP Conference Proceedings, Volume 561, pp. 116-126 (2001).

Physics

Nuclear Physics

Big Bang Nucleosynthesis, Transfer Reactions, Coupled-Channel And Distorted-Wave Models, Optical And Diffraction Models, 3H-, 3He-, And 4He-Induced Reactions, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages

Scientific paper

Because of the Coulomb barrier, reaction cross sections in astrophysics cannot be accessed directly at the relevant Gamow energies, unless very favourable conditions are met (e.g. LUNA-underground experiments). Theoretical extrapolations of available data are then needed to derive the astrophysical S(0)-factor. Various indirect processes have been used in order to obtain additional information on the parameters entering these extrapolations. The Trojan Horse Method is an indirect method which might help to bypass some of the problems typically encountered in direct measurements, namely the presence of the Coulomb barrier and the effect of the electron screening. However, a comparison with direct data in an appropriate energy region (e.g. around the Coulomb barrier) is crucial before extending the method to the relevant Gamow energy. Additionally, experimental and theoretical tests are needed to validate the assumptions underlying the method. The application of the Trojan Horse Method to some cases of interest is discussed. .

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