| 10/02/2025 |
Julien Billard |
Maxime Pierre |
Searching for Light Dark Matter with the future TESSERACT experiment at LSM |
The future TESSERACT (Transition Edge Sensor with Sub-Ev Resolution and Cryogenic Targets) experiment aims at searching for light Dark Matter candidates in the sub-GeV range down to the keV-scale from the Laboratoire Souterrain de Modane. To do so, it is being designed to be highly sensitive to both nuclear recoil DM (NRDM) and electron recoil DM (ERDM) interactions. Multiple target materials will be used, sharing identical readout using Transition Edge Sensors operated at 10 mK. In addition to maximizing sensitivity to a variety of DM interactions, this provides an independent handle on instrumental backgrounds. Three detector technologies will be implemented: HeRALD which will use superfluid helium-4 as a target material, SPICE which will use polar and scintillating crystals, and Ge/Si semiconductors that will be developed by the French TESSERACT collaborators. In this talk, I will give an overview of the design status of the future TESSERACT experiment, discuss its different detector technologies with an emphasis on the Ge/Si one currently being developed in the context of the Ricochet neutrino experiment, and will present the science prospect of the experiment.
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Institut de Physique des 2 Infinis de Lyon (IP2I), Lyon, France |
C4.174, GRAPPA, Science Park 904, Amsterdam |
| 24/02/2025 |
Luciano Rezzolla |
Gianfranco Bertone |
Binary Neutron Stars: from macroscopic collisions to microphysics |
I will argue that if black holes represent one the most fascinating implications of Einstein's theory of gravity, neutron stars in binary system are its richest laboratory, where gravity blends with astrophysics and particle physics. I will discuss the rapid recent progress made in modelling these systems and show how the gravitational signal can provide tight constraints on the equation of state and sound speed for matter at nuclear densities, as well as on one of the most important consequences of general relativity for compact stars: the existence of a maximum mass. Finally, I will discuss how the merger may lead to a phase transition from hadronic to quark matter. Such a process would lead to a signature in the post-merger gravitational-wave signal and open an observational window on the production of quark matter in the present Universe. |
Goethe University, Frankfurt, Germany |
C4.174, GRAPPA, Science Park 904, Amsterdam |
| 10/03/2025 |
Jonathan Gair |
TBA |
TBA |
TBA |
Max Planck Institute for Gravitational Physics
(Albert Einstein Institute), Potsdam, Germany |
C4.174, GRAPPA, Science Park 904, Amsterdam |
| 24/03/2025 |
Carlos Frenk |
Samaya Nissanke |
TBA |
TBA |
Institute for Computational Cosmology, Durham University, UK |
C4.174, GRAPPA, Science Park 904, Amsterdam |
| 31/03/2025 |
Max Welling |
Gianfranco Bertone |
TBA |
TBA |
University of Amsterdam, The Netherlands |
C4.174, GRAPPA, Science Park 904, Amsterdam |
| 07/04/2025 |
Lucio Mayer |
Gianfranco Bertone |
TBA |
TBA |
Department of Astrophysics, University of Zurich, Switzerland |
C4.174, GRAPPA, Science Park 904, Amsterdam |
