Network of domain walls on soliton stars

Brito, Francisco A.; Bazeia, Dionisio

doi:10.1103/PhysRevD.64.065022

Network of domain walls on soliton stars

Francisco A. Brito
(
- Pennsylvania U.
)
,
Dionisio Bazeia
(
- Paraiba U.
)

May, 2001

5 pages

Published in:

Phys.Rev.D 64 (2001) 065022

e-Print:

hep-th/0105296 [hep-th]

DOI:

10.1103/PhysRevD.64.065022

Report number:

UPR-940-T

View in:

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Abstract:

We explore the idea of a network of domain walls to appear at the surface of a soliton star. We show that for a suitable fine tuning among the parameters of the model we can find localized fermion zero modes only on the network of domain walls. In this scenario the soliton star gets unstable and decays into free particles before the cold matter upper mass limit is achieved. However, if fermions do not bind to the network of domain walls, the network becomes neutral, imposing a new lower bound on the charge of the soliton star, slightly raising its critical mass.

soliton: matter
domain wall: network
fermion: zero mode
star: stability
star: charge
field theory: scalar

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