Candidate toroidal electric dipole mode in the spherical nucleus 58Ni

P. von Neumann-Cosel*, V. O. Nesterenko, I. Brandherm, P. I. Vishnevskiy, P.-G. Reinhard, J. Kvasil, H. Matsubara, A. Repko, A. Richter, M. Scheck, A. Richter

*Corresponding author for this work

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Abstract

Dipole toroidal modes appear in many fields of physics. In nuclei, such a mode was predicted more than 50 years ago, but clear experimental evidence was lacking so far. Using a combination of high-resolution inelastic scattering experiments with photons, electrons, and protons, we identify for the first time candidates for toroidal dipole excitations in the nucleus 58Ni and demonstrate that transverse electron scattering form factors represent a relevant experimental observable to prove their nature.
Original languageEnglish
Article number232502
Number of pages7
JournalPhysical Review Letters
Volume133
DOIs
Publication statusPublished - 4 Dec 2024

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