Do Superstrings Lead to Quarks or to Preons

摘要

We propose that the fundamental four dimensional fields of the superstring theories be identified with preons. This can help preserve the most elegant features of the superstring theories while circumventing the possible difficulties such as rapid proton-decay, associated with a quark-lepton identification, of the fields. It is observed that a recently suggested preon-model possessing the desirable features of family-replication and inter-family mass-hierarchy can naturally emerge from the E sub 8 xE sub 8 superstring theory. (Atomindex citation 17:018372)