Antideuteron Limits on Decaying Dark Matter with a Tuned Formation Model

We investigate the production of antideuterons from decaying dark matter, using gravitinos in supersymmetric models with trilinear R-parity violating (RPV) operators as an example. The model used for antideuteron formation is shown to induce large uncertainties in the predicted flux, comparable to u...

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Bibliographic Details
Published inarXiv.org
Main Authors Dal, L A, Raklev, A R
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.05.2014
Subjects
Computer simulation
Cosmic ray propagation
Couplings
Dark matter
Fluxes
Gravitinos
Monte Carlo simulation
Physics - Cosmology and Nongalactic Astrophysics
Physics - High Energy Physics - Phenomenology
Supersymmetry
Uncertainty
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Summary:We investigate the production of antideuterons from decaying dark matter, using gravitinos in supersymmetric models with trilinear R-parity violating (RPV) operators as an example. The model used for antideuteron formation is shown to induce large uncertainties in the predicted flux, comparable to uncertainties from cosmic-ray propagation models. We improve on the formation model by tuning hadronization and coalesence parameters in Monte Carlo simulations to better reproduce the hadron spectra relevant for antideuteron production. In light of current bounds on fluxes and future prospects from the AMS-II and GAPS experiments we set limits on RPV couplings as a function of the gravitino mass.
ISSN:2331-8422
DOI:10.48550/arxiv.1402.6259