Domain walls and the decay rate of the excited vacua in large N Yang-Mills theory

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Abstract

In the (nonsupersymmetric) Yang-Mills theory in the large N limit, there exists an infinite set of nondegenerate "vacua." The distinct vacua are separated by domain walls whose tension determines the decay rate of the false vacua. I discuss the phenomenon from a field-theoretic point of view, starting from supersymmetric gluodynamics and then breaking supersymmetry by introducing a gluino mass. By combining previously known results, the decay rate of the excited vacua is estimated, Γ∼exp(-const×N4). The fourth power of N in the exponent is a consequence of the fact that the wall tension is proportional to N.

Original languageEnglish (US)
Pages (from-to)1-3
Number of pages3
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume59
Issue number2
StatePublished - Jan 15 1999

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