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18 October 2021 to 26 November 2021
Institut Pascal
Europe/Paris timezone

 The Paris-Saclay AstroParticle Symposium 2021

A specialist meeting in Astroparticle Physics that will take place at the Pascal Institute of the Paris-Saclay University for a 6 weeks program and will cover topics:

  • From High-Energy cosmic rays, gamma-rays, neutrinos to dark matter and gravitational waves.
  • Emphasis on multi-wavelength & multi-messenger studies.
  • Put into context and perspective the revolutionary breakthroughs that occurred in the last few years.
  • Mixed audiences between theorists and experimentalists during most of the programme.

The format will be flexible enough to allow for strong interactions between participants. There will be working sessions every day with dedicated office space for participants and on Fridays, a « conference » format day with invited speakers.

Under the sponsorship of P2IO, P2I, IN2P3 master projet, APPEC and CEA.


Schedule of topics that will be covered

Week 1: Ecosystem of the Galactic Cosmic-Rays


  • Cosmic Ray acceleration and sources.
  • Propagation and anisotropies.
  • Cosmic Ray composition.


Week 2: Ultra-High Energy Cosmic Rays


  • Anisotropies across all energies.
  • Galactic/extra-Galactic transition.
  • Lessons from neutrinos.


Week 3: Dark Matter Theories


  • Particle Physics scenarios (WIMPs, SUSY, FIMPs,...).
  • Alternatives (Black Holes, early production…).
  • Observable effects (direct or indirect).


Week 4: Dark matter, experiments meet theories


  • The experimental status of dark matter-vs-dark matter theories.
  • Search for exotic phenomena (link to Gravitational waves..).
  • Link with early Universe observations and theories (reheating…).


Week 5: Gravitational waves and compact objects: experiments meet theories


  • Galactic sources of gravitational waves (pulsars, binary systems…).
  • Exotic phenomena (Gamma-Ray Bursts, Fast-Ray Burst…).
  • Multi-messenger astrophysics.


Week 6: Gravitational waves, the theoretical point of view


  • Gravitational Waves: General Relativity meets Quantum Field theory.
  • Black Holes, neutron stars… new physics?
  • Gravitational waves and cosmology.
Institut Pascal
Rue André Rivière 91400 Orsay
Application for this event is currently open.