TY - JOUR
T1 - Particle decay in false vacuum
AU - Gorsky, A.
AU - Voloshin, M. B.
PY - 2006/1/15
Y1 - 2006/1/15
N2 - We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the aœmaster fielda the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a fermion we find a closed expression for the decay rate in (1+1) dimensions. It is shown that in the (1+1) dimensional case an infrared problem of one-loop correction to the decay rate of a boson is resolved due to a cancellation between soft modes of the field. We also find the boson decay rate in the aœsine-Gordon staircasea model in the limits of strong and weak coupling.
AB - We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the aœmaster fielda the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a fermion we find a closed expression for the decay rate in (1+1) dimensions. It is shown that in the (1+1) dimensional case an infrared problem of one-loop correction to the decay rate of a boson is resolved due to a cancellation between soft modes of the field. We also find the boson decay rate in the aœsine-Gordon staircasea model in the limits of strong and weak coupling.
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U2 - 10.1103/PhysRevD.73.025015
DO - 10.1103/PhysRevD.73.025015
M3 - Article
AN - SCOPUS:32644489663
SN - 1550-7998
VL - 73
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 2
M1 - 025015
ER -