Spontaneously broken quark helicity symmetry
Journal Article
·
· Annals of Physics (New York)
- Department of Physics, University of Wales Swansea, Singleton Park, Swansea SA2 8PP (United Kingdom)
- Department of Physics, SMU Dallas, TX 75275 (United States)
We discuss the origin of chiral-symmetry breaking in the light-cone representation of QCD. In particular, we show how quark helicity symmetry is spontaneously broken in SU (N) gauge theory with massless quarks if that theory has a condensate of fermion light-cone zero modes. The symmetry breaking appears as induced interactions in an effective light-cone Hamiltonian equation based on a trivial vacuum. The induced interaction is crucial for generating a splitting between pseudoscalar and vector meson masses, which we illustrate with spectrum calculations in some 1 + 1-dimensional reduced models of gauge theory.
- OSTI ID:
- 20766987
- Journal Information:
- Annals of Physics (New York), Journal Name: Annals of Physics (New York) Journal Issue: 2 Vol. 321; ISSN 0003-4916; ISSN APNYA6
- Country of Publication:
- United States
- Language:
- English
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