# Background to Dark Matter Searches from Galactic Cosmic Rays

- Institution: CERN
- Department: Conferences
- Speaker: Subir Prof. SARKAR
- Year: 2015
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3006154)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Just as searches for BSM physics at the LHC necessitate a careful audit of SM backgrounds, the search for signals of dark matter in cosmic rays must contend with production of secondaries like e+ and pbar through cosmic ray propagation in the Galaxy. The theoretical framework for calculating this has however not been directly calibrated at the high energies being explored by AMS-02 and there may be surprises in store. In particular a nearby source where cosmic rays are being accelerated stochastically can naturally generate a e+ fraction rising with energy as is observed. The test of this is the expected correlated rise in other secondary/primary ratios e.g. B/C and pbar/p. Such a nearby cosmic accelerator should also be detectable through the concomitant flux of neutrinos and its discovery would be (nearly!) as exciting as that of dark matter..

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## Lectures

1. [Background to Dark Matter Searches from Galactic Cosmic Rays](https://invisiblenetwork.ai/learn/cern/3006154/c7c0d12312ea), 55 min (CERN's player)