Antideuterons from decaying gravitino dark matter

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Delahaye, Timur^1 ; Grefe, Michael^2

Oskar Klein Centre for Cosmoparticle Physics, Department of Physics, Stockholm University, AlbaNova University Center, Stockholm

SE-106 91, Sweden^1

II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, Hamburg

22761, Germany^2

关键词: Antideuterons;    Cosmic ray antiprotons;    Dark matter;    Dark matter searches;    Generic features;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/4/042017/pdf
DOI  :  10.1088/1742-6596/718/4/042017

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

From the point of view of Dark Matter searches, antideuteron are an interesting species of cosmic rays. In the past eighteen years much progress has been done in the understanding of these cosmic rays but this did not translate into experimental efforts to actually detect these particles. In this work, starting from a specific case of dark matter candidate with relatively generic features, we study some sources of theoretical uncertainties and show that the margin of improvement beyond the limits already set by cosmic-ray antiproton are quite narrow and anyway unachievable for the next generation of experiments.