Atomic And Nuclear Physics

13

Nuclear Forces

THIS CHAPTER COVERS…

• The fundamental forces.
• The simple case of two nucleon system of ground state of deuteron.
• The relation between range and the depth of nuclear potential well.
• The low energy n-p scattering and its phase shift analysis to arrive at the scattering cross-section.
• The Fermi scattering length and its physical significance.
• Meson theory of nuclear force and Yukawa potential.
• The relative features of strong, electromagnetic and weak forces and their interactions.
• The Feynman diagrams used in some examples.
• The exchange particle model of forces.
• The conservation laws governing such exchange.
• The quark model, types of quarks and their transformations by weak interactions.

13.1 INTRODUCTION

Nuclei that are composed ...