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

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

2006-06-03

arxiv.org/abs/hep-ph/0606038v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pp. Talk given at the seventh workshop "Continuous Advances in QCD 2006", Minneapolis, May 11-14, 2006

Scientific paper

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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