INFN - Laboratori Nazionali di Frascati, May 1995
From: The Second DAFNE Physics Handbook
Chapter 11: Light Quark Spectroscopy
Eds. L. Maiani, G. Pancheri, N. Paver
Supported by the INFN, by the EC under the HCM contract number CHRX-CT920026 and by the authors home institutions.
Laboratory of Theoretical Physics , Institute for Mathematics
630090 Novosibirsk 90 RUSSIA
OUTLINE
1 Introduction
2 To search for four--quark states in the
and
decays
2.1 The OZI suppression of the decays and
in the case of two--quark
nature of the
and
mesons
2.2 The OZI breaking in the decays and
in the case of four--quark nature of the
and
mesons
2.2.1 The model of the and
decays
2.2.2 Numbers and other details in and
models
3 Conclusion