Stringy WIMP Detection and Annihilation
James A. Maxin, Van E. Mayes, and Dimitri V. Nanopoulos

TL;DR
This paper investigates the detection prospects of string-inspired WIMP dark matter models through direct and indirect methods, comparing theoretical predictions with current and future experimental sensitivities.
Contribution
It provides detailed calculations of detection cross-sections and gamma-ray fluxes for intersecting D6-brane and one-parameter models, integrating cosmological constraints.
Findings
Allowed parameter space consistent with current experiments
Predicted gamma-ray fluxes within Fermi telescope sensitivity
Comparison of string-inspired models with mSUGRA benchmarks
Abstract
We calculate the direct dark matter detection spin-independent and proton spin-dependent cross-sections for a semi-realistic intersecting D6-brane model. The cross-sections are compared to the latest constraints of the current dark matter direct detection experiments, as well as the projected results of future dark matter experiments. The allowed parameter space of the intersecting D6-brane model is shown with all current experimental constraints, including those regions satisfying the WMAP and Supercritical String Cosmology (SSC) limits on the dark matter density in the universe. Additionally, we compute the indirect detection gamma-ray flux resulting from neutralino annihilation for the D6-brane model and compare the flux to the projected sensitivity of the Fermi Gamma-ray Space Telescope. Finally, we compute the direct and indirect detection cross-sections as well as the gamma-ray…
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