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Photoproduction of η ′ mesons off nuclei and their properties in the nuclear medium
We study the photoproduction of $\eta^\prime$ mesons from nuclei near the threshold within the collision model based on the nuclear spectral function. The model takes properly into account both primary photon-nucleon and secondary pion-nucleon $\eta^\prime$ production processes as well as the effect of the nuclear $\eta^\prime$ mean-field potential on these processes. We find that the secondary pion-induced reaction channel ${\pi}N \to...
17 p pdu 25/09/2012 132 1
Từ khóa: Nuclear Theory, Nuclear Experiment, photoproduction, nuclear spectral function, nuclear processes, effects of nuclear
A measurement of 74Ge(p,gamma)75As at low proton energies, inside the astrophysically relevant energy region, is important in several respects. The reaction is directly important as it is a bottleneck in the reaction flow which produces the lightest p nucleus 74Se. It is also an important addition to the data set required to test reaction-rate predictions and to allow an improvement in the global p+nucleus optical potential required in such...
14 p pdu 25/09/2012 126 1
Từ khóa: nuclear experiment, 74Se, lightest p nucleus, nucleus optical, astrophysical, vật lý thiên văn
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