2002/06/30 by D. G. Cerdeño, D. G. Cerdeno, C. Munoz +1 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.66.115007
published as Phys.Rev. D66 (2002) 115007 · Final version to appear in Phys. Rev. D. Some comments and references added. 37 pages, 19 figures
arxiv created 2002/09/09 · openalex publication_date 2002/12/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyze some phenomenological implications of heterotic M theory with five-branes. Recent results for the effective four-dimensional action are used to perform a systematic analysis of the parameter space, finding the restrictions that result from requiring the volume of the Calabi-Yau manifold to remain positive. Then the different scales of the theory, namely the 11-dimensional Planck mass, the compactification scale, and the orbifold scale, are evaluated. The expressions for the soft supersymmetry-breaking terms are computed and discussed in detail for the whole parameter space. With this information we study the theoretical predictions for the supersymmetric contribution to the muon anomalous magnetic moment, using the recent experimental result as a constraint on the parameter space. We finally analyze the neutralino as a dark matter candidate in this construction. In particular, the neutralino-nucleon cross section is computed and compared with the sensitivities explored by present dark matter detectors.