\ Introduction to Nuclear Forces, a bird's-eye view on Quantum Chromodynamics

Introduction to Nuclear Forces, a bird's-eye view on Quantum Chromodynamics

Scott Bogner [1]
Morten Hjorth-Jensen [1]

 

[1] National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA

 

2017


© 2013-2017, Scott Bogner, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license

Brief overview of Quantum Chromydynamics (QCD)

  • Quark-gluon degrees of freedom (DOF) are optimal to describe the strong force dynamics of nuclei.

  • Nevertheless, the low-energy Effective Field Theory (EFT) that underpin our modern understanding if internucleon forces are clearly related to the underlying symmetries of QCD

  • Moreover, as we will see later in the course, remarkable progress is being made in lattice QCD so that dired calculations of few-nucleon systems with nucleat forces are becoming closer to reality.

  • Therefore, even though 95% of this course will be devoted to a description in terms of nucleons and pions, it is useful to give a bird's-eye view of QCD.

  • If you are not too familiar with quantum field theory or QCD. Our presentation here is necessarily impressionistic and meant only to remind you of what is governing things at a fundamental level.

QCD Lagrangian