There is a concept of chiral symmetry [0] in QCD---the symmetry whereby left and right handed quarks can be phase rotated independently. It is explicitly broke

There is a concept of chiral symmetry [0] in QCD---the symmetry whereby left and right handed quarks can be phase rotated independently. It is explicitly broken by quark masses, but the dominant effect is actually the dynamical breaking by the QCD vacuum [1]. However, as far as anyone knows, the chirality at the quark level has nothing to do with the chiral symmetry breaking apparent in eg. the organic molecules of life whereby one enantiomer is used and not the other. [0] https://en.wikipedia.org/wiki/Chirality_(physics)#Chiral_symmetry https://en.wikipedia.org/wiki/Chirality_(physics)#Chiral_sym... [1] https://en.wikipedia.org/wiki/Chiral_symmetry_breaking https://en.wikipedia.org/wiki/Chiral_symmetry_breaking