# Physics Topics: Campaigns

## The Structure of Nuclei

- What is the structure of nuclear matter?
- At what distance and energy scale does the underlying quark and gluon structure of nuclear matter become evident?

**Strategy for answering this question:**- Perform 'ab initio' calculations of the structure of few-body nuclei with the following basic assumptions:
- Nucleus consists of A nucleons interacting via force described by potential V
_{NN} - Potential V
_{NN}determined by fit to NN scattering data (phase shifts) - Correct for exchange currents and relativistic effects

- Nucleus consists of A nucleons interacting via force described by potential V
- Compare these calculations to the results of electromagnetic interaction studies of few-body systems where precise, directly interpretable experiments are feasible.
- Determine the limits of the meson-nucleon description and infer where a QCD-based description becomes substantially more straightforward

Relevant experiments and talks. - Perform 'ab initio' calculations of the structure of few-body nuclei with the following basic assumptions: