On behalf of the “Espace de Structure et de réactions Nucléaires Théorique” (ESNT), the workshop entitled: “Beyond Effective Single-Particle Energies: Identifying Meaningful Nuclear Structure Observables” will be held on 17-21 November at CEA-Saclay, Orme-des-Merisiers site.
Effective Single-Particle Energies (ESPEs) have been a cornerstone of nuclear structure research, providing theoretical insights into nuclear shell evolution. Since the seminal work of Mayer to understand the existence of the so-called magic numbers, a wealth of observables have shown to be easily understood within the picture of nucleons sitting on single-particles states.
However, ESPEs present a fundamental limitation: they are theoretical constructs lacking direct experimental observability.
Our workshop aims to address this critical challenge by identifying and developing robust, experimentally accessible observables that can reliably characterize nuclear magicity. The goals of the workshop are to:
1. Build bridges between experimental and theoretical quantities,
2. Clarify the usefulness / limitations of single particle energies,
3. Provide theoretical mechanisms to interpret experimental findings,
4. Identify relevant experimental observables to compare with theoretical calculations.
For details about the updated program, see the ESNT Web pages: https://esnt.cea.fr >> Ateliers 2025
For further information and registration, please contact the organizers of the project (see the Web page of the workshop).