The scientific case for the full 4π GRETA has been spelled out in the GRETA White Paper, submitted as input to the August 2014 Low-Energy Community Town Meeting. The physics cases span the nuclear chart from the detailed measurements in the lightest isotopes at the edge of stability where nucleons are barely bound, to the very heaviest elements.

Physics Opportunities with GRETA
1. How does subatomic matter organize itself and what phenomena emerge?- Calcium isotopes -- a prototypical example of structural evolution |
2. How did visible matter come into being and how does it evolve?
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3. Are the fundamental interactions that are basic to the structure of matter fully understood?
- Studies of octupole collectivitiy to guide searches for physics beyond the Standard Model |
4. How can the knowledge and technological progress provided by nuclear physics best be used to benefit society? |