The challenge for TeV-scale WIMP Dark Matter by observing Very-High-Energy Gamma rays around the Galactic Centre with the MAGIC telescopes

Europe/Paris
Auditorium Marcel Vivargent (LAPP)

Auditorium Marcel Vivargent

LAPP

Francesco Costanza (Centre National de la Recherche Scientifique (FR)), Laura Zambelli (LAPP)
Description

INADA Tomohiro <tomohiro@icrr.u-tokyo.ac.jp>
Tsinghua U, Beijing (China) and Institute for Cosmic Ray Research - ICRR, Tokyo (Japan)


Linelike features in TeV γ rays constitute a “smoking gun” for TeV-scale particle dark matter and new physics. Probing the Galactic Centre region with ground-based Cherenkov telescopes enables the search for TeV spectral features in immediate association with a dense dark matter reservoir at a sensitivity out of reach for satellite γ-ray detectors, and direct detection and collider experiments. I will report on about seven years of observations of the Galactic Centre region with the MAGIC stereoscopic telescope system reaching γ-ray energies up to 100 TeV. We constrain the cross-section for dark matter annihilation into two photons, achieving the best limits to date for a dark matter mass above 20 TeV and a cuspy dark matter profile at the Galactic Centre. I would like to discuss how to constrain supersymmetric wino models, which are one of the most popular dark matter candidates in the context of the Lightest Supersymmetric Particles (LSPs).

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