Brane-assisted Scherk-Schwarz supersymmetry breaking in orbifolds

Abstract

We have analyzed the interplay between Scherk-Schwarz supersymmetry breaking and general fermion (gaugino or gravitino) mass terms localized on the fixed point branes of the S^1/Z_2 orbifold. Analytic solutions for eigenfunctions and eigenvalues are found in all cases. All results are checked by numerical calculations that make use of regularized δ-functions. Odd and generically also even fermions are discontinuous at the brane fixed points, but in all cases the combination that couples to the brane is continuous. For CP-even brane mass terms supersymmetry restoration can take place when their effects are cancelled by those of Scherk-Schwarz compactification. However such a cancellation can not occur for CP-odd brane mass terms.

12 pages, 5 figures

References in corpus (2)

• Brane induced supersymmetry breakdown and restoration
• Symmetry Breaking for Bosonic Systems on Orbifolds

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