# Nuclear Physics Seminar

##
Chiral symmetry breaking on light-like planes

### Silas Beane (University of Washington)

**Special Time:** Monday, September 16th, 2013, 2:30pm

I will review various essential aspects of chiral symmetry breaking
in null-plane quantization; a general proof of Goldstone's theorem
will be presented, and the interesting manner in which the
Gell-Mann-Oakes-Renner relation, a statement about quark
condensation in QCD, is recovered in null-plane quantized QCD
will be demonstrated. I will then discuss the interesting algebra
that mixes the internal and spacetime symmetries on a null-plane.
First, I will show that the spin-flavor symmetry group of the
non-relativistic quark model is contained as a non-trivial solution
of the algebra, and I will then establish the relation between this
algebra and high-energy scattering processes involving Goldstone
bosons.

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Last modified: 10:30 am, October 30, 2015.

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