Cosmology This group, headed by Cyrille Rosset, includes two main areas of research: • Experimental investigation of the cosmic microwave background, including attempts to detect CMB polarization B-modes, which could provide support for the theory of Inflation. Researchers were involved in the
Planck space mission and are now active in the
QUBIC experiment, the
Simons Observatory, and the
LiteBIRD satellite. • Cosmological analysis of large spectroscopic and imaging surveys for the determination of constraints on the nature of dark energy. Researchers are involved in the wide-field observatories aimed at understanding the nature of dark energy: the large field
Baryon Oscillation Spectroscopic Survey telescope,
the Vera C. Rubin Observatory and the
Euclid space mission
High-energy astrophysics Research carried out by this group, headed by Anne Lemière, aims at understanding the violent phenomena of the universe (mostly within
compact stars,
neutron stars, or
black holes). The group is engaged in many international projects with telescopes or instruments detecting photons, cosmic rays, or neutrinos. For the observation of: •
gamma rays, it is involved in the
INTEGRAL observatory, the
High Energy Stereoscopic System, the
Cherenkov Telescope Array, and the
Space Variable Objects Monitor •
cosmic rays of ultra-high energy, it is involved in
JEM-EUSO •
neutrinos, it is involved in the
ANTARES and
KM3NeT projects collaborations •
X-rays, it was involved in the space mission
Hitomi Neutrinos The research carried out by this group, headed by Davide Franco, is dedicated to understanding neutrino properties is one of the laboratories' main activities. Researchers are involved in studies of the phenomenon of oscillation (
Borexino,
Double Chooz) and on future projects addressing the measurement of the neutrino mass hierarchy with atmospheric neutrinos with the deep-sea water Cherenkov telescope Orca and the long-baseline neutrino oscillation project Laguna-LBNO.
Gravitation This core research of this group led by Stanislav Babak is the direct detection of gravitational waves. The group is involved in both ground-based (
Virgo interferometer) and space-based (
Laser Interferometer Space Antenna and its precursor
LISA Pathfinder) instruments.
Theory This group, headed by Dmitri Semikoz, covers the research topics of the laboratory from a theoretical perspective. It also carries out work on other areas of fundamental physics. == Organization ==