Composite superstring model for hadrons and extended Virasoro superconformal symmetry with supercurrent constraints

摘要

Hadron dynamics is formulated in terms of interacting composite strings.Consistent composite string model with extended Virasoro superconformalsymmetry is found. These composite strings carry flavour and chiral degrees offreedom on edging two-dimensional surfaces. Necessary correct description ofstring amplitudes without states of negative norms in the spectrum of physicalstates is reached when special supercurrents conditions are fulfilled.