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High Energy Physics - Phenomenology

arXiv:1503.01101 (hep-ph)
[Submitted on 3 Mar 2015 (v1), last revised 8 Jul 2015 (this version, v3)]

Title:Antideuterons from Decaying Gravitino Dark Matter

Authors:Timur Delahaye (OKC and Stockholm U.), Michael Grefe (U. Hamburg, Inst. Theor. Phys. II)
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Abstract:We study the possibility of improving the constraints on the lifetime of gravitino dark matter in scenarios with bilinear R-parity violation by estimating the amount of cosmic-ray antideuterons that can be produced in gravitino decays. Taking into account all different sources of theoretical uncertainties, we find that the margin of improvement beyond the limits already set by cosmic-ray antiproton data are quite narrow and unachievable for the next generation of experiments. However, we also identify more promising energy ranges for future experiments.
Comments: 28 pages, 14 figures, pdfLaTeX; addition of figure 7, minor extension of discussion, results unchanged, agrees with published version
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1503.01101 [hep-ph]
  (or arXiv:1503.01101v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1503.01101
Journal reference: JCAP07(2015)012
Related DOI: https://doi.org/10.1088/1475-7516/2015/07/012

Submission history

From: Michael Grefe [view email]
[v1] Tue, 3 Mar 2015 20:55:53 UTC (2,064 KB)
[v2] Wed, 11 Mar 2015 12:51:24 UTC (2,059 KB)
[v3] Wed, 8 Jul 2015 19:49:17 UTC (2,134 KB)
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