Non-Perturbative Flat Direction Decay

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dc.creatorBasboll, Anders
dc.creatorMaybury, David
dc.creatorRiva, Francesco
dc.creatorWest, Stephen M.
dc.date2007-03-01
dc.date2008-02-14
dc.date.accessioned2026-07-07T11:22:42Z
dc.date.available2026-07-07T11:22:42Z
dc.descriptionWe argue that supersymmetric flat direction vacuum expectation values can decay non-perturbatively via preheating. Considering a toy U(1) gauge theory, we explicitly calculate the scalar potential, in the unitary gauge, for excitations around several flat directions. We show that the mass matrix for the excitations has non-diagonal entries which vary with the phase of the flat direction vacuum expectation value. Furthermore, this mass matrix has zero eigenvalues whose eigenstates change with time. We show that these light degrees of freedom are produced copiously in the non-perturbative decay of the flat direction vacuum expectation value.
dc.description7 pages, 2 figures. References added, version for Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0703015
dc.identifierhttp://arxiv.org/abs/hep-ph/0703015
dc.identifierPhys.Rev.D76:065005,2007
dc.identifierdoi:10.1103/PhysRevD.76.065005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194660
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNon-Perturbative Flat Direction Decay
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