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Electron scattering on radioactive ions at GANIL

Abstract : Electron scattering on stable nuclei represented milestones for our knowledge on nuclear properties. The purpose of the present proposal is to revive the physics of electron-ion collisions for radioactive nuclei at GANIL. Electron radioactive-ion collisions would open a new window on nuclear structure studies by collecting detailed data for ground-state density distributions and radii, transition densities to excited states and, in the long term, nuclear strength functions. These data would represent key observables directly comparable to the nuclear structure models. Taking into account the possible Radioactive Ion beams produced at GANIL with enough intensity and long enough half-life times,-soon available or possible in the mid-term future-we propose a colliding e-RI machine starting with RI beams above 10$^7$/s, electron intensity of I ~ 100 mA (up to 200 mA), energies at 500 MeV (choice between 500-700 MeV is discussed), for a luminosity from 10$^{28}$cm$^{-2}$ s$^{-1}$ going up to 10$^{29}$ with a search of potential improvement at 10$^{30-31}$ cm$^{-2}$ s$^{-1}$ in a later phase.
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https://hal-cea.archives-ouvertes.fr/cea-03176547
Contributor : Valérie Lapoux <>
Submitted on : Monday, March 22, 2021 - 2:44:41 PM
Last modification on : Thursday, March 25, 2021 - 3:30:41 AM
Long-term archiving on: : Wednesday, June 23, 2021 - 6:50:09 PM

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  • HAL Id : cea-03176547, version 1

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A Chancé, Pierre Delahaye, F. Flavigny, V. Lapoux, A. Matta, et al.. Electron scattering on radioactive ions at GANIL. [Research Report] CEA Saclay DRF, IRFU; GANIL; LPC Caen. 2020. ⟨cea-03176547⟩

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