Kudryavtsev V.A. (PNPI)

 

Extended superVirasoro symmetry for composite strings and quark flavours in these strings

 

N=2 extended superconformal symmetry in composite strings is considered. Corresponding superVirasoro algebra contains supergenerators which are mixing two-dimensional fields on edged surfaces and on basic surface. Vertices of emission of mesons for different quark flavours are discussed.