Journées de Rencontre Jeunes Chercheurs 2022

Session

Astroparticle

27 oct. 2022, 10:00

Présidents de session

Astroparticle

• Julien Masbou (SUBATECH)

Astroparticle

• Il n'a pas de président de session pour ce bloc

Astroparticle

• Julien Masbou (SUBATECH)

Astroparticle

• Il n'a pas de président de session pour ce bloc

Astroparticle

• Il n'a pas de président de session pour ce bloc

75. Session overview

Dr Julien Masbou (SUBATECH)

27/10/2022 10:00

173. Study and development of new detectors for the search of light dark matter with EDELWEISS

Elsa Guy, Elsa Guy

27/10/2022 11:00

Astroparticle

The EDELWEISS collaboration performs light Dark Matter (DM) particle searches with high-purity germanium bolometers collecting both charge and phonon signals. Our recent results ([PhysRevD.106.062004][1]) using NbSi Transition Edge Sensor (TES) equipped detectors operated underground at the Laboratoire Souterrain de Modane (LSM) has shown the high relevance of this technology for future...

153. Direct search for dark matter with the DarkSide-20k experiment

Marie van Uffelen (CPPM, Aix Marseille Université, CNRS/IN2P3)

27/10/2022 11:30

Astroparticle

Almost a century ago, astrophysics observations lead to the suspicion of dark matter (DM) existence in gravitationally bound astrophysical objects such as our galaxy, the Milky Way. Since then, it became a pillar in modern cosmology. Yet, although many efforts were made to detect it, no DM signal have been observed in direct or indirect detection experiments.
There exists many candidates for...

171. Stabilité spatiale des signaux de calibration au Kr83m dans l’expérience XENONnT

Johan Loizeau (Subatech)

27/10/2022 12:00

Astroparticle

L’expérience XENONnT est une expérience de détection directe de la matière noire utilisant une chambre à projection temporelle remplie de xénon liquide et gazeux. Elle a pour but principal de détecter la collision des WIMP avec les noyau de xénon. Les WIMP (Weakly Interacting Massive Particles) sont des particules théoriques candidates pour la matière noire. De part leur faible interaction...

146. X-rays constraints on sub-GeV dark matter

Jordan Koechler (LPTHE - Sorbonne Université)

27/10/2022 16:30

Astroparticle

Dark matter (DM) constitutes about 85% of the total matter content in the Universe and yet, we don’t know anything about its actual nature. In this talk, after an historical introduction, I will present my work on DM indirect detection, more especially the computation of X-ray constraints on sub-GeV (or “light”) DM. Photons from the galactic ambient bath see their energy boosted up to X-ray...

183. Calibration of the Gravitational Waves detector Virgo using a Newtonian Calibrator (NCal) for the upcoming observing run O4

Antoine SYX (CNRS)

28/10/2022 10:00

Astroparticle

Since the first direct evidence of gravitational waves in 2015 the LIGO and Virgo collaboration have provided important results for astrophysics, cosmology or fundamental physics. The upgrades of the detectors through the years has increased the sensitivity and the range of detection, challenging their calibration. This talk reports the latest updates for a calibration method based on the...

170. Study of the localization of sources identified by the MBTA pipeline for low latency CBC search and Early Warnings a.k.a Talk Astro #4

Christopher Alléné (LAPP)

28/10/2022 11:00

110. Talk Astro #3