TY - JOUR

T1 - Domain walls and the decay rate of the excited vacua in large N Yang-Mills theory

AU - Shifman, M.

PY - 1999/1/15

Y1 - 1999/1/15

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevD.59.021501

DO - 10.1103/PhysRevD.59.021501

M3 - Article

AN - SCOPUS:16444374304

SN - 0556-2821

VL - 59

SP - 1

EP - 3

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 2

M1 - 021501

ER -