abstract:In quantum field theory, the mass gap is the difference in energy between the vacuum and the next lowest energy state. The energy of the vacuum is zero by definition, and assuming that all energy states can be thought of as particles in plane-waves, the mass gap is the mass of the lightest particle.
Ms Cooper adds that because New Zealanders are geographically remote and have little exposure to mass labels, like Gucci and the Gap, designers ignore the rules.