Séminaire doctorant
vendredi 2 juillet 2021 -
14:00
lundi 28 juin 2021
mardi 29 juin 2021
mercredi 30 juin 2021
jeudi 1 juillet 2021
vendredi 2 juillet 2021
14:00
Test of the first prototype of ATLAS Calibration Boards for the High-Luminosity LHC
-
Gitanjali Poddar
(
CNRS
)
Test of the first prototype of ATLAS Calibration Boards for the High-Luminosity LHC
Gitanjali Poddar
(
CNRS
)
14:00 - 14:20
A new era of hadron collisions will start around 2027 with the High-Luminosity LHC, that will allow to collect ten times more data that what has been collected since 10 years at LHC. In order to withstand the high expected radiation doses, the ATLAS Liquid Argon Calorimeter readout electronics will be upgraded. The calibration board delivers calibration pulses with known amplitude and shape close to ionisation signal, to calibrate the 128 000 channels of the LAr calorimeters. Stringent requirements on the linearity, uniformity and dynamic range have to be fulfil to qualify the design. The first results of the tests on the first 32-channels calibration prototype will be shown.
14:20
Premier suivi de GRB et analyse de données avec le LST
-
Mathieu de Bony
(
LAPP
)
Premier suivi de GRB et analyse de données avec le LST
Mathieu de Bony
(
LAPP
)
14:20 - 14:40
Le LST, actuellement en phase de commisionning, prend des données depuis plus d'un an. L'observation des sursauts gamma, un des phénomènes les plus violents de l'univers, constitue un des principaux objectifs scientifiques de ce télescope. Un des premiers suivi de sursaut gamma a eu lieu récemment. On s'intéressera aux résultats de l'analyse des premières sources observées ainsi que ceux de ce sursaut gamma. Il sera notamment comparé les résultats avec différentes techniques de reconstruction.
14:40
A joint GW/GRB Bayesian study for low-luminosity short GRB population
-
Matteo Pracchia
(
LAPP
)
A joint GW/GRB Bayesian study for low-luminosity short GRB population
Matteo Pracchia
(
LAPP
)
14:40 - 15:00
We perform a joint gravitational waves/gamma-ray bursts (GW/GRB) Bayesian analysis in order to put constraints on the low-luminosity end of the short gamma-ray burst (sGRB) population. For this purpose we exploit the results of the modeled search for GW transients associated to short and ambiguous GRBs detected during the O1, O2, O3a and O3b runs of the LIGO/Virgo network and a broken power law to describe the luminosity function of our sGRB population. We found that the bounds obtained for the low-luminosity sGRB population are in good agreement with other analogous results in literature.