Pseudo-anomalous U(1) symmetry in the strong coupling limit of the heterotic string

Details Pseudo-anomalous U(1) symmetry in the strong coupling limit of the heterotic string Pseudo-anomalous U(1) symmetry in the strong coupling limit of the heterotic string

1998-07-10

arxiv.org/abs/hep-th/9807079v1

Phys.Lett.B441:163-172,1998

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 2 figures, latex

Scientific paper

10.1016/S0370-2693(98)01112-5

We discuss, in the context of the strongly coupled E_8 \times E_8 heterotic string proposed by Horava and Witten, the appearance of anomalous U(1)_X symmetries of a nonperturbative origin, related to the presence, after compactification, of five-branes in the five-dimensional bulk of the theory. We compute the gauge anomalies and the induced Fayet-Iliopoulos terms on each boundary, which we find to be lower than the universal one induced in the weakly coupled case.

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