TY - JOUR

T1 - Gravity effects on thick brane formation from scalar field dynamics

AU - Andrianov, A.A.

AU - Andrianov, V.A.

AU - Novikov, O.O.

PY - 2013

Y1 - 2013

N2 - The formation of a thick brane in five-dimensional space-time is investigated when warp geometries of AdS 5 type are induced by scalar matter dynamics and triggered by a thin-brane defect. The scalar matter is taken to consist of two fields with O(2) symmetric self-interaction and with manifest O(2) symmetry breaking by terms quadratic in fields. One of them serves as a thick brane formation mode around a kink background and another one is of a Higgs-field type which may develop a classical background as well. Scalar matter interacts with gravity in the minimal form and gravity effects on (quasi)localized scalar fluctuations are calculated with usage of gauge invariant variables suitable for perturbation expansion. The calculations are performed in the vicinity of the critical point of spontaneous breaking of the combined parity symmetry where a non-trivial v.e.v. of the Higgs-type scalar field is generated. The non-perturbative discontinuous gravitational effects in the mass spectrum of light localized scala

AB - The formation of a thick brane in five-dimensional space-time is investigated when warp geometries of AdS 5 type are induced by scalar matter dynamics and triggered by a thin-brane defect. The scalar matter is taken to consist of two fields with O(2) symmetric self-interaction and with manifest O(2) symmetry breaking by terms quadratic in fields. One of them serves as a thick brane formation mode around a kink background and another one is of a Higgs-field type which may develop a classical background as well. Scalar matter interacts with gravity in the minimal form and gravity effects on (quasi)localized scalar fluctuations are calculated with usage of gauge invariant variables suitable for perturbation expansion. The calculations are performed in the vicinity of the critical point of spontaneous breaking of the combined parity symmetry where a non-trivial v.e.v. of the Higgs-type scalar field is generated. The non-perturbative discontinuous gravitational effects in the mass spectrum of light localized scala

KW - gravity

KW - extra space dimensions

KW - domain wall

KW - brane

KW - spontaneous translational symmetry breaking

U2 - 10.1140/epjc/s10052-013-2675-4

DO - 10.1140/epjc/s10052-013-2675-4

M3 - Article

VL - 73

SP - 1

EP - 14

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 12

ER -