Photon-induced Nucleosynthesis: Current Problems and Experimental Approaches

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dc.creatorMohr, P.
dc.creatorFulop, Zs.
dc.creatorUtsunomiya, H.
dc.date2007-05-16
dc.date.accessioned2026-07-07T08:51:31Z
dc.date.available2026-07-07T08:51:31Z
dc.descriptionPhoton-induced reactions play a key role in the nucleosynthesis of rare neutron-deficient p-nuclei. The paper focuses on (gamma,alpha), (gamma,p), and (gamma,n) reactions which define the corresponding p-process path. The relation between stellar reaction rates and laboratory cross sections is analyzed for photon-induced reactions and their inverse capture reactions to evaluate various experimental approaches. An improved version S_C(E) of the astrophysical S-factor is suggested which is based on the Coulomb wave functions. S_C(E) avoids the apparent energy dependence which is otherwise obtained for capture reactions on heavy nuclei. It is found that a special type of synchrotron radiation available at SPring-8 that mimics stellar blackbody radiation at billions of Kelvin is a promising tool for future experiments. By using the blackbody synchrotron radiation, sufficient event rates for (gamma,alpha) and (gamma,p) reactions in the p-process path can be expected. These experiments will provide data to improve the nuclear parameters involved in the statistical model and thus reduce the uncertainties of nucleosynthesis calculations.
dc.description13 pages, 6 figures, EPJA, accepted
dc.identifierhttps://arxiv.org/abs/0705.2400
dc.identifierhttp://arxiv.org/abs/0705.2400
dc.identifierEur. Phys. J. A 32, 357-369 (2007)
dc.identifierdoi:10.1140/epja/i2006-10378-y
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144960
dc.subjectNuclear Experiment
dc.subjectAstrophysics
dc.titlePhoton-induced Nucleosynthesis: Current Problems and Experimental Approaches
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