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U(2)_{L}\times U(2)_{R} Chiral Theory of Mesons
A chiral theory of pseudoscalar, vector, and
axial-vector mesons has been proposed. VMD has been revealed from this theory.
The physical processes of normal parity and abnormal parity have been studied
by using the same lagrangian and the universality of coupling has been
revealed. Two new mass relations between vector and axial-vector mesons have
been found. Weinberg's first sum rule and new relations about the amplitude of
decay are satisfied. KSFR sum rule is satisfied pretty well. The
pole in pion form factor has been achieved. The theoretical results of
, ,
and , , ,
, ,
, ,
, , are in good agreement with data. Weinberg's
scattering lengths and slopes and , , and
have been obtained. Especially, the resonance in the amplitude
of scattering has been revealed from this theory. Two
coefficients of chiral perturbation theory have been determined and they are
close to the values used by chiral perturbation theory.Comment: 55 pages, send e-mail to [email protected] to get the figur