Dipole strength in 144Sm studied via (gamma,n), (gamma,p) and (gamma,alpha) reactions

Details Dipole strength in 144Sm studied via (gamma,n), (gamma,p) and (gamma,alpha) reactions Dipole strength in 144Sm studied via (gamma,n), (gamma,p) and (gamma,alpha) reactions

2010-05-12

arxiv.org/abs/1005.2158v1

Physics

Nuclear Physics

Nuclear Experiment

Phys Rev C, Accepted for publication

Scientific paper

Photoactivation measurements on 144Sm have been performed with bremsstrahlung endpoint energies from 10.0 to 15.5 MeV at the bremsstrahlung facility of the superconducting electron accelerator ELBE of Forschungszentrum Dresden-Rossendorf. The measured activation yield for the 144Sm(gamma,n) reaction is compared with the calculated yield using cross sections from previous photoneutron experiments. The activation yields measured for all disintegration channels 144Sm(gamma,n), (gamma,p) and (gamma,alpha) are compared to the yield calculated by using Hauser-Feshbach statistical models. A new parametrization of the photon strength function is presented and the yield simulated by using the modified photon strength parameters are compared to the experimental data.

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