PhD Day 2

Liste des Contributions

8. Café

27/04/2023 09:30

1. Quasinormal mode applications in the epoch of gravitational-wave astronomy

Anna Chrysostomou

27/04/2023 10:00

In the wake of a perturbation, a black hole will radiate gravitational waves (GWs). After an initial response to the external stimulus, the GW spectrum of the perturbed black hole is dominated by a discrete set of complex quasinormal frequencies (QNFs) whose values depend exclusively on characteristic black hole properties. With the advent of GW astronomy, we can test theoretical and numerical...

2. Study and development of new detectors for the search of light dark matter with CRYOSEL

Elsa Guy

27/04/2023 10:30

The EDELWEISS collaboration performs light Dark Matter (DM) particle searches with high-purity germanium bolometers collecting both charge and phonon signals. As is the case for most cryogenic dark matter experiments, the sensitivity of EDW's detectors is limited by unknown low-energy backgrounds. But recent results (PhysRevD.106.062004) obtained thanks to detectors equipped with NbSi...

3. Enhancing In-Beam Gamma-Ray Spectroscopy with Machine Learning: Study of Nuclear Structure and Shape Coexistence in Neutron-Rich Niobium Isotopes

Mojahed Abushawish (Lyon-IP2I)

27/04/2023 11:00

In-beam gamma-ray spectroscopy using the state-of-the-art Advanced GAmma Tracking Array (AGATA) provides unprecedented quality in Doppler correction for high-velocity recoil nuclei studies. The Pulse Shape Analysis (PSA) algorithm, crucial to AGATA's analysis, processes gamma-ray interaction signals by comparing them to a database of simulated signals. To improve PSA capabilities, experimental...

9. Discussion Informelle (autour Café)

Prof. Corinne AUGIER (UCB Lyon 1 - IP2I)

27/04/2023 14:00

4. Relativistic Hartree-Fock Chiral Lagrangians with confinement, nucleon finite size and short-range effects

Mohamad Chamseddine (UCBL1)

27/04/2023 15:00

Understanding dense matter presents a big challenge at the actual time. On one hand, QCD, the fun-
damental interaction of nuclear matter is known to be non-perturbative at such low energy regimes,
and on the other hand relying on numerical approaches to solve QCD, also known as lattice QCD,
is blocked by what is known as the “sign problem”.
Thus effective nuclear modeling may be employed...

6. Simulations atomistiques de l'UO2 dopé au chrome, nouveau combustible dit tolérant aux accidents nucléaires (ATF)

Théo Roubille

27/04/2023 15:30

Framatome développe un concept de combustible ATF (accident tolerant fuel) basé sur le dopage à l'oxyde de chrome du dioxyde d'uranium. L'objectif de ma thèse est d'examiner l'impact du chrome sur les mécanismes de diffusion de deux produits de fission, césium et molybdène, connus pour leur volatilité et pour leur influence sur la chimie du combustible, notamment sur le relâchement de l’iode...

7. Searches for CP symmetry violation in the top quark sector with CMS at the LHC, and the tracker Endcap upgrade for the High Luminosity LHC

Christopher Greenberg (IP2I)

27/04/2023 16:00

The Standard Model (SM) is unable to explain the predominance of matter over antimatter in our present universe. Matter and antimatter are linked by a CP-symmetry transformation, and current explanations involve a new source of CP symmetry breaking. An effective field theory (EFT) will be used to describe CP-symmetry violation, which will be searched for by analyzing the production and decay...

5. Charged-particle pseudorapidity density in proton-proton collisions in ALICE Run 3 using MFT

Sarah Herrmann (IP2I Lyon)

Charged-particle pseudorapidity density measurements help to understand the particle production mechanisms in high-energy hadronic collisions, from proton-proton to heavy-ion systems. Performing such measurements at forward rapidity, in particular, allows one to access the details of the phenomena associated with particle production close to the fragmentation region of the colliding nuclei. In...