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Restoration of chiral and U(1)A symmetries in excited hadrons in the semiclassical regime

L. Ya. Glozman

hep-pharXiv:hep-ph/0606038

Abstract

Restoration of chiral and U(1)A symmetries in excited hadrons is reviewed. Implications of the OPE as well as of the semiclassical expansion for this phenomenon are discussed. A solvable model of the 't Hooft type in 3+1 dimensions is presented, which demonstrates a fast restoration of both chiral and U(1)A symmetries at larger spins and radial excitations.

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