Evidence for a dynamically refracted primary bow in weakly bound ${}^9$Be rainbow scattering from ${}^{16}$O

Abstract

We present for the first time evidence for the existence of a dynamically refracted primary bow for ${}^9$Be+${}^{16}$O scattering. This is demonstrated through the use of coupled channel calculations with an extended double folding potential derived from the density-dependent effective two-body force and precise microscopic cluster wave functions for ${}^9$Be. The calculations reproduce the experimental Airy structure in ${}^9$Be+${}^{16}$O scattering well.It is found that coupling of a weakly bound ${}^9$Be nucleus to excited states plays the role of a booster lens, dynamically enhancing the refraction over the {\it static} refraction due to the Luneburg lens mean field potential between the ground states of ${}^9$Be and ${}^{16}$O.

arXiv comment6 pages, 5 figures

References in corpus (11)

• Nuclear rainbow scattering and nucleus-nucleus potential
• Evidence for a secondary bow in Newton's zero-order nuclear rainbow
• Observation of Airy minimum in elastic and inelastic scattering of ${}^3$He from ${}^{12}$C at 50.5 and 60 MeV and alpha particle condensation in ${}^{12}$C
• Evidence for strong refraction of ${}^3$He in an alpha-particle condensate
• Unification of Airy structure in inelastic $\alpha$ +${}^{16}$O scattering and $\alpha$-cluster structure with core excitation in ${}^{20}$Ne
• Refractive effects and Airy structure in inelastic ${}^{16}$O+${}^{12}$C rainbow scattering
• Emergence of a secondary rainbow and the dynamical polarization potential for 16O on 12C at 330 MeV
• Similarity between nuclear rainbow and meteorological rainbow -- evidence for nuclear ripples
• Further evidence for a dynamically generated secondary bow in ${}^{13}$C+${}^{12}$C rainbow scattering
• Airy structure in ${}^{16}$O+${}^{14}$C nuclear rainbow scattering
• Unexpected transparency in the scattering of fragile ${}^6$Li and ${}^6$He Nuclei

Cited by in corpus (2)

• Existence of inelastic supernumerary nuclear rainbow in ${}^{16}$O+${}^{12}$C scattering
• Secondary bow with ripples in ${}^{12}$C+${}^{12}$C rainbow scattering