17-22 July 2016
Master Cutlers Hall
Europe/London timezone

Exploring the physics frontier with the MAGIC Telescopes: Indirect dark matter searches

22 Jul 2016, 11:30
20m
Venue: Cutlers' Main Hall (First Floor); Chair: Paolo Gondolo; Session Managers: Andrew Scarff & Frederic Mouton ()

Venue: Cutlers' Main Hall (First Floor); Chair: Paolo Gondolo; Session Managers: Andrew Scarff & Frederic Mouton

Speaker

Mr. Joaquim Palacio Navarro (IFAE-MAGIC)

Description

Since the beginning of operation, the MAGIC Cherenkov telescopes have been a powerful tool for exploring the Physics frontier, addressing topics such as the nature of dark matter, and its distribution in the Universe, or the search for quantum gravitational effects in photon propagation. I present here an overview of status and results of the main MAGIC fundamental Physics projects, specially focusing on dark matter searches. Among the recent MAGIC results there is the most constraining limits to the WIMP annihilation cross-section for particle masses above few hundred GeV, from observations of dwarf spheroidal (dSph) galaxies. This MAGIC result has been later combined with Fermi-LAT observations of dSphs, obtaining limits for dark matter particle masses between 10 GeV and 100 TeV, the widest mass range ever explored by a single gamma-ray analysis. The combined analysis improved the previously published Fermi-LAT and MAGIC results by up to a factor of two at certain masses. I will also show the results obtained on a campaign performed on the Perseus cluster and argue how optimal this object can be for exploring the parameter space of decaying dark matter candidates. We apply a likelihood analysis that has been optimized for exploiting the spectral and morphological features expected in the dark matter signal for each of this objects. In the case of Perseus, this allowed us to reach sensitivities to decay lifetimes into bb_bar of 10^25 s for dark matter masses of 1 TeV, almost one order of magnitude stronger than previous MAGIC results.

Primary author

Mr. Joaquim Palacio Navarro (IFAE-MAGIC)

Presentation Materials

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