Prospects for Surrogate Neutron Capture Measurements with Radioactive Ion Beams and GODDESS
Springer proceedings in physics(2021)
摘要
Neutron capture reactions are responsible for the synthesis of almost all of the elements heavier than iron through s-process and r-process nucleosynthesis. Uncertainties in (n,γ) rates on neutron-rich nuclei can have significant impact on the predictions of observed r-process abundances for different astrophysical scenarios. The (d,pγ) reaction has recently been demonstrated to be a valid surrogate for (n,γ). This reaction has been measured in inverse kinematics with Gammasphere ORRUBA: Dual Detectors for Experimental Structure Studies (GODDESS) where the Gammasphere array of Compton-suppressed HPGe detectors is coupled to the Oak Ridge Rutgers University Barrel Array (ORRUBA) of position-sensitive silicon-strip detectors. Preliminary results from the (d,pγ) measurement with 134Xe beams are reported.
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关键词
Neutron-transfer reactions, Radioactive-ion beams, Neutron capture
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