RESTORATION OF CHIRAL AND U(1)A SYMMETRIES IN EXCITED HADRONS IN THE SEMICLASSICAL REGIME

Authors :: L. Ya. Glozman
Source :: Continuous Advances in QCD 2006.
Publication Year :: 2007
Publisher :: WORLD SCIENTIFIC, 2007.
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.<br />Comment: 9 pp. Talk given at the seventh workshop "Continuous Advances in QCD 2006", Minneapolis, May 11-14, 2006

Subjects :: High Energy Physics - Theory
Physics
Nuclear Theory
High Energy Physics::Lattice
High Energy Physics::Phenomenology
High Energy Physics - Lattice (hep-lat)
Hadron
FOS: Physical sciences
Semiclassical physics
Nuclear Theory (nucl-th)
High Energy Physics - Phenomenology
High Energy Physics - Lattice
High Energy Physics - Phenomenology (hep-ph)
High Energy Physics - Theory (hep-th)
Quantum mechanics
Excited state
Homogeneous space
U-1
Nuclear theory

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