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.

arXiv comment6 pages, 3 figures

References in corpus (13)

• Breakup Threshold Anomaly: New Manifestation of the Dispersion Relation
• Coarse grained Potential analysis of neutron-proton and proton-proton scattering below pion production threshold
• A recipe for EFT uncertainty quantification in nuclear physics
• Long range absorption in the scattering of 6He on 208Pb and 197Au at 27 MeV
• The study of threshold behaviour of effective potential for ${}^6$Li+${}^{58,64}$Ni systems
• Bootstrapping the statistical uncertainties of NN scattering data
• Self-consistent statistical error analysis of $\pi \pi$ scattering
• 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
• Statistical error propagation in ab initio no-core full configuration calculations of light nuclei
• 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