3 papers
nucl-th2020
Scattering matrix pole expansions for complex wavenumbers in -matrix theory
Pablo Ducru, Vladimir Sobes, Gerald Hale +2
In this follow-up article to [Shadow poles in the alternative parametrization of R-matrix theory, Ducru (2020)], we establish new results on scattering matrix pole expansions for c…
nucl-th2020
Windowed multipole representation of R-matrix cross sections
Pablo Ducru, Vladimir Sobes, Abdulla Alhajri +4
Nuclear cross sections are basic inputs to any nuclear computation. Campaigns of experiments are fitted with the parametric R-matrix model of quantum nuclear interactions, and the…
nucl-th2020
Shadow poles in Brune parametrization of R-matrix theory
Pablo Ducru, Vladimir Sobes, Benoit Forget +2
Our collective knowledge of nuclear cross sections is recorded as resonance parameters in nuclear data libraries. To evaluate these parameters, campaigns of measurements are fitted…