TY - JOUR
T1 - On chiral realizations of confining theories
AU - Amati, D.
AU - Rabinovici, E.
PY - 1981/5/28
Y1 - 1981/5/28
N2 - It is argued that chirality is not necessarily broken in SU(N) colour theories with a chiral flavour symmetry. In this case, massless fermion bound states contributr to anomaly equations, and loop expansions in a 1/N approach are invalid. As a hint to understanding which option is realized by the theory, we investigate it in two dimensions for very small quark masses. The light spectrum shows a rich structure not obtained in a 1 N expansion. Light flavoured baryons and mesons indicate a partial realization of the chiral symmetry.
AB - It is argued that chirality is not necessarily broken in SU(N) colour theories with a chiral flavour symmetry. In this case, massless fermion bound states contributr to anomaly equations, and loop expansions in a 1/N approach are invalid. As a hint to understanding which option is realized by the theory, we investigate it in two dimensions for very small quark masses. The light spectrum shows a rich structure not obtained in a 1 N expansion. Light flavoured baryons and mesons indicate a partial realization of the chiral symmetry.
UR - http://www.scopus.com/inward/record.url?scp=18444403030&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(81)90164-7
DO - 10.1016/0370-2693(81)90164-7
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AN - SCOPUS:18444403030
SN - 0370-2693
VL - 101
SP - 407
EP - 411
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 6
ER -