A symmetry of the strong interaction that is less well known but plays an important role in particle physics is the chiral symmetry. It is the purpose of this chapter to present a major experimental result that reflects this symmetry. Although chiral symmetry is a property of the strong interaction, we will see that it can be indirectly observed in a weak interaction process, the β-decay. Finally we will discuss the underlying group structure of the symmetry.
KeywordsChiral Symmetry Vector Current Axial Vector Axial Current Isospin Symmetry
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