FRIB Theory Group: Science

Science

Some of the science issues relevant for FRIB were discussed at a Nuclear Theory Breakout session was held at the FRIB Meeting in May 2009, chaired by Erich Ormand [LLNL] and Alexander Volya [FSU]. The issues, exerpted from the workshop summary, include:

* a comprehensive and unified microscopic description of the structure of all nuclei and their low-energy reactions from the basic interactions between the constituent protons and neutrons.

* building a unified approach using bridges to allow the development of a consistent understanding that spans from quarks to neutron stars.

* How does the NN and NNN interaction emerge from QCD? How do NNN correlations affect the structure of heavy nuclei?

* What are the limits of stability? (including angular momentum, isospin, mass and charge)

* How does shell structure evolve with neutron number?

* How do simple symmetries arise in complex systems?

* Can we describe large-amplitude collective motion? (And can we have a predictive theory for fission for understanding the r-process and Advanced Fuel Cycles?)

* What is the microscopic underpinning of emergent phenomena?

* How do nuclei react with each other? (Can we describe some reactions from first principles)? Can we develop a comprehensive theory of direct reactions? What is the impact of the continuum on nuclear properties?

* What is the EOS of neutron matter?

* What can nuclei tell us about other small systems (cold trapped atoms, pairing, quantum dots, phase transitions)?