Is the unusual near-threshold potential behavior in elastic scattering of weakly bound nuclei a precision error?

Abstract

We present the first example of a rigorous uncertainty quantification on elastic Nucleus-Nucleus scattering at energies near the Coulomb barrier. Experimental data has been analyzed using an energy dependent effective optical model potential with physical constraints imposed. We confirm the compatibility of these uncertainties with the well known Coulomb threshold anomaly, explained in terms of a dispersive relation, and contrast our results with previous analyses that suggest otherwise.

6 pages, 3 figures

References in corpus (7)

• The study of threshold behaviour of effective potential for ${}^6$Li+${}^{58,64}$Ni systems
• Bootstrapping the statistical uncertainties of NN scattering data
• Error analysis of nuclear forces and effective interactions
• An introduction to Bootstrap for nuclear physics
• First extraction of the scalar proton dynamical polarizabilities from real Compton scattering data
• Triton binding energy with realistic precision
• Uncertainties of optical-model parameters for the study of the threshold anomaly

Cited by in corpus (2)

• Proton scalar dipole polarizabilities from real Compton scattering data, using fixed-t subtracted dispersion relations and the bootstrap method
• Uncertainty quantification of an empirical shell-model interaction using principal component analysis