-
Louis Deramo (LPCA - Clermont)25/11/2024 09:30
-
RAGANSU CHAKKAPPAI (IJCLab-Orsay)25/11/2024 10:00
The Fair Universe project organised the HiggsML Uncertainty Challenge, which took place from September to October 2024. This groundbreaking competition in high-energy physics (HEP) and machine learning was the first to place a strong emphasis on uncertainties, focusing on mastering both the uncertainties in the input training data and providing credible confidence intervals in the...
Go to contribution page -
Arthur LAFARGE (Université Clermont Auvergne (FR), LPCA (Clermont-Ferrand))25/11/2024 11:00
The Standard Model (SM) is currently the most predictive framework for describing interactions among the fundamental constituents of matter. It includes 19 free parameters, which are measured experimentally, notably with the ATLAS detector at the Large Hadron Collider (LHC) at CERN. These parameters encompass particle masses, phases, and coupling values. One of these couplings, the Higgs boson...
Go to contribution page -
Théo Cuisset (LLR / Ecole Polytechnique - CNRS)25/11/2024 11:30
The high-luminosity era of the LHC will pose unprecedented challenges to the detectors. To meet these challenges, the CMS detector will undergo several upgrades, including the replacement the current endcap calorimeters with a novel High-Granularity Calorimeter (HGCAL). To make optimal use of this innovative detector, new and original algorithms are being devised. A machine-learning based...
Go to contribution page -
Corentin Ravoux (LPC Clermont-Ferrand CNRS/IN2P3)25/11/2024 12:00
-
Leonora Kardum25/11/2024 14:00
In this presentation, we will explore the application of machine learning techniques in cosmology, focusing on the analysis of Cosmic Microwave Background (CMB) maps. Accurately calculating the tensor-to-scalar ratio from CMB data is a crucial yet challenging task, as it holds the key to understanding primordial gravitational waves and the early universe's inflationary period. I will discuss...
Go to contribution page -
Nathan Amouroux25/11/2024 14:30
The Legacy Survey of Space and Time (LSST) is an ambitious project with the objective of mapping the observable universe over a ten-year period. This will be achieved through the utilisation of the Simonyi telescope, which is equipped with six distinct filters. The telescope will survey the entire visible sky in three days. However, the presence of bright objects, particularly stars,...
Go to contribution page -
CONSTANCE GANOT25/11/2024 15:00
Type Ia Supernovae (SNe Ia) are reliable standard candles for measuring cosmic distances due to their nearly constant maximum luminosity. Standardisation methods have been developed to reduce intrinsic scatter and improve distance estimates. Traditional photometric method reaches a 8% precision in distance, but the SNFactory (SNf) [1] survey has suggested that a spectroscopic approach can...
Go to contribution page -
Jonathan Kriewald (Jožef Stefan Institute)25/11/2024 15:30
-
Mael Cavan (Lapth / USMB)25/11/2024 16:30
The duration of the neutrino burst from the supernova event SN 1987A is known to be sensitive to exotic sources of cooling, such as axions radiated from the dense and hot hadronic matter thought to constitute the inner core of the supernova. We perform the first quantitative study of the role of hadronic matter beyond the first generation -- in particular strange matter. We do so by...
Go to contribution page -
Margaux JOMAIN (LAPTh)25/11/2024 17:00
There are strong cosmological and astrophysical constraints for thermal dark matter below the GeV scale: CMB excludes s-channel annihilation cross-sections for thermal dark matter below 10 GeV. What kind of special properties dark matter should have to evade such strong constraints ?
Go to contribution page
Resonant annihilation is one possibility.
First, I will explain the effects of resonances on the formation of... -
Oscar Le Noan (IPHC - Groupe Théorie)25/11/2024 17:30
Photo-nuclear reaction rates provide key inputs to various applications of nuclear physics and consist fundamental probes of nuclear structure, from single particle to collective excitations, revealing nature of complicated nucleonic correlations. Among the excitations of nuclei due to the external field, the E1 dipole response is of particular interest. In this talk, I will discuss recent...
Go to contribution page -
Vitalii Lisovskyi (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)26/11/2024 09:30
-
Thomas Clouvel (Laboratoire de Physique Clermont Auvergne)26/11/2024 10:00
The Standard Model (SM) of particle physics describes the fundamental particles and the interactions governing the universe. While it has been remarkably successful in providing experimental predictions, several phenomena remain unexplained, such as the matter/antimatter asymmetry, the nature of dark matter, and even the oscillation of neutrinos. In particular, neutrino oscillation experiments...
Go to contribution page -
Guillem Tocabens26/11/2024 11:00
-
Mlle Melissa azzoune (CNRS)26/11/2024 11:30
Pour le retraitement du cycle du combustible nucléaire à l'usine Orano de La Hague, la détermination précise de la composition isotopique des matières nucléaires est cruciale pour optimiser leur utilisation et assurer leur gestion. Les méthodes actuelles, comme l'analyse physico-chimique, présentent des limites et sont longues et complexes à mettre en œuvre. L'analyse par transmission de...
Go to contribution page -
M. Romain Garreau (LPC Caen)26/11/2024 12:00
Precision measurements in beta decay play an essential role in the search for new physics beyond the standard model (SM), by probing “exotic” phenomena such as scalar and tensor interactions. The existence of such interactions induces deviations on specific observables, away from their SM predictions. The study of the full beta energy spectrum offers a sensitive mean to probe these...
Go to contribution page -
Christina AGAPOPOULOU (IJCLab), Christina Agapopoulou (IJCLab)26/11/2024 14:00
-
Thiziri AMEZZA (LPNHE)26/11/2024 14:30
The ATLAS experiment is preparing for the high-luminosity phase of the LHC (HL-LHC) with a complete upgrade of its inner detector to an all-silicon inner tracker (ITk). Designed for enhanced granularity, radiation hardness, readout speed and low material budget, the ITk aims to maintain high performance in tracking and data acquisition under the challenging conditions of increased pile-up and...
Go to contribution page -
Marko MIHOVILOVIC26/11/2024 15:00
With the High Luminosity LHC (HL-LHC) upgrade scheduled for 2029, the ATLAS experiment will face increased challenges from higher pile-up and radiation damage. To address this, the High Granularity Timing Detector (HGTD) will be installed in front of the ATLAS end-cap calorimeter, significantly enhancing vertex reconstruction through precise timing information. The HGTD will consist of around...
Go to contribution page -
Maxime VINCENT (AstroParticule et Cosmologie)26/11/2024 15:30
-
Christian Mavungu Tsava (CNRS)26/11/2024 16:30
The ATLAS detector is one of the four main experiments near the Large Hadron Collider (LHC) at CERN. The Liquid Argon Calorimeter (LAr) is an essential part of ATLAS, its primary purpose being the measurement of electrons and photons, but also providing important input for the measurement of jets and transverse impulses. Since LHC Run 1, the LAr is affected by a coherent noise phenomenon...
Go to contribution page -
Benjamin Audurier (CEA)26/11/2024 17:00
-
Hao HUANG (IJCLab, CNRS-IN2P3)26/11/2024 17:30
The generalized parton distributions (GPDs) embody multiple information about the inner structure of nucleons thus an important topic to investigate. Experimentally, physicists access GPDs through the Compton Form Factor (CFF), and the Deeply Virtual Compton Scattering (DVCS) is the simplest process to look into.
In Hall C at the Jefferson Lab (JLab), we collected DVCS data from the fall of...
Go to contribution page -
Sabrina Sacerdoti (APC-Paris,France)26/11/2024 18:00
-
Justine Devin (CNRS - LUPM)27/11/2024 09:30
-
3. Towards highest and lowest energies for the High Energy Stereoscopic System (H.E.S.S.) in NamibiaWassim Si Said (Laboratoire Leprince Ringuet (LLR))27/11/2024 10:00
Abstract : The High Energy Stereoscopic System (H.E.S.S.) is a gamma-ray observatory located in the highlands of Namibia, operational since 2002. It has undergone several upgrades to maintain scientific relevance and withstand the desert environment. H.E.S.S. houses CT5, the largest gamma-ray telescope, which has been equipped since 2019 with FlashCAM, a new prototype camera designed to...
Go to contribution page -
Maxime Regeard (APC, IN2P3, CNRS, Université Paris-Cité)27/11/2024 11:00
Pulsars are rapidly rotating neutron stars for which we detect pulsed emission. Pulsars have been detected from radio (more than 3000 sources detected) to gamma-rays (300 sources detected in 3PC).
Go to contribution page
In the last 2 decades, Imaging Atmospheric Cherenkov Telescopes (IACTs), such as H.E.S.S., MAGIC or VERITAS, have drastically enhanced the very high energy (VHE) astronomy, with several hundreds of... -
Samantha López Pérez (Laboratoire Leprince Ringuet)27/11/2024 11:30
The project that I will describe concerns the study of the gamma-ray source VER J0521+211, an active galactic nucleus of the blazar subclass, using gamma-ray data from the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope and the Very Energetic Radiation Imaging Telescope Array System (VERITAS). I will first give an overview of the properties of this object and then I...
Go to contribution page -
Léo LE MOIGNE (LAPP)27/11/2024 12:00
Since 2018, the first Large Size Telescope (LST), from the CTAO experiment, is observing various sources in our night sky. To ensure the best pointing possible, it appears mandatory to know the structure effects that affect the pointing of the telescope. The first part of this talk will be dedicated to what is called the bending model, a system which allow correcting the misspointing. Its...
Go to contribution page -
27/11/2024 14:00
-
Christophe Roland28/11/2024 09:30
-
Grigorii TOLKACHEV (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR)), Grigorii Tolkachev (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))28/11/2024 10:00
Physics at the Large Hadron Collider (LHC) at CERN (European Organization for Nuclear Research) is the high priority research field of the Particle Physics community worldwide. ATLAS is one of the two general purpose experiments installed at the LHC that discovered a Higgs boson in July 2012, key piece for the understanding of the fundamental interactions and the origin of elementary particle...
Go to contribution page -
Gaël Coulon28/11/2024 11:00
I will present the current search in the CMS experiment for exotic signatures characteristic of massive particles with a sufficiently long lifetime to be considered stable at the detector scale, and electrically charged. Such particles, among other things, have a special properties: because of their large mass, they deposit more energy in the matter than Standard Model particles.
Go to contribution page
As a first... -
Benjamin Massoteau (IP2I)28/11/2024 11:30
En 2012, le modèle standard a été complété après la découverte au LHC, par les expériences ATLAS et CMS, d’un boson scalaire pouvant correspondre au boson de Higgs tel que prédit par le mécanisme BEHHGK. Cependant, des modèles d’extensions du modèle standard comme le 2HDM ou la supersymétrie prédisent des bosons de Higgs additionnels pouvant posséder des masses bien différentes de celui...
Go to contribution page -
Katia MICHIELSEN (LPSC Grenoble- UGA, CNRS)28/11/2024 12:00
The neutron electric dipole moment (nEDM) is the coupling of the neutron spin to an external electric field. A non-zero electric dipole moment would violate time reversal symmetry, source of charge-parity violation.
Go to contribution page
The n2EDM experiment aims to lower the nEDM upper limit by one order of magnitude, increasing the sensitivity to beyond standard model physics and to processes leading to baryon... -
Izold Guegan28/11/2024 14:00
-
Chiara Filomena Lastoria28/11/2024 16:30
-
Antoine AMY28/11/2024 17:00
Keywords: nEXO, neutrinoless double beta decay, rare events, liquid xenon, shielding, hydrofluoroether, radioactivity, background reduction, nickel cryostats
Presentation Type: Oral presentation
The nEXO experiment aims to detect neutrinoless double beta decay ($0\nu\beta\beta$), a rare nuclear process that, if observed, would show that neutrinos are their own antiparticles and could...
Go to contribution page -
Thomas RAYMOND (IPHC)29/11/2024 11:00
JUNO is an experiment designed to resolve the mass ordering of the neutrinos. It consists of a main detector containing 20 kt of Liquid Scintillator with which the neutrinos will interact, and two other veto detectors.
Cosmogenic isotopes, produced by the passage of cosmic muons, are one of the biggest sources of background for JUNO. To reject these events, without missing any neutrino...
Go to contribution page -
yann querlioz (LAPP)29/11/2024 11:30
Motivated by the Reactor Anti-neutrino Anomaly (RAA, an experimental 6% flux deficit),
Go to contribution page
recent reactor anti-neutrino experiments have explored the existence of
a fourth, sterile neutrino. Its experimental signature is oscillations
induced over short baselines. The STEREO and PROSPECT experiments have
excluded the RAA’s best-fit oscillation parameters at over 4σ and
produced exclusions... -
Camille Sironneau (APC lab)29/11/2024 14:00
Being less well-known particles, neutrinos are one of the best starting points for new physics searches in particle physics. In this scope, the hypothesis of the existence of non-weakly interacting "sterile" neutrinos is a promising route to explore to go beyond the Standard Model.
The most direct way to explore this hypothesis is to study the oscillation patterns of active neutrinos, as...
Go to contribution page -
I Cheong Hong (APC/France)29/11/2024 14:30
The Deep Underground Neutrino Experiment (DUNE) is a next-generation neutrino oscillation experiment that will examine neutrino interactions to ultimately address some of the most fundamental questions in particle physics. To study neutrinos is very difficult and a more sophisticated reconstruction approach must be developed to fully exploit the high-resolution detection technology used by the...
Go to contribution page -
emile lavaut (PHE ijclab)29/11/2024 15:00
The Deep Underground Neutrino Experiment (DUNE) is a next generation long baseline neutrino experiments. It is a Liquid Argon Time Projection Chamber (LArTPC) detector. While its main physics goals (measuring the $\delta_{\text{CP}}$ phase, resolving $\theta_{23}$ octant and the mass hierarchy) are focused on a GeV-scale physics DUNE has also a low energy (MeV-scale) program. This includes...
Go to contribution page -
Matteo Galli (APC - Paris)29/11/2024 15:30
The Deep Underground Neutrino Experiment (DUNE) is a long baseline experiment that wants to answer questions like: the preponderance of matter over antimatter, the dynamics of the supernova neutrino bursts and whether protons decay, using a neutrino beam.
Go to contribution page
The experiment exploits Liquind ArgonTime Projection Chamber (LArTPC) technology.
DUNE consists of 4 modules of 17 kton located 1300 km... -
Antonio Uras, Laura Zambelli (LAPP), Sabrina Sacerdoti (APC-Paris,France), Thomas STREBLER (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))29/11/2024 22:00
-
Maxime Regeard (APC, IN2P3, CNRS, Université Paris-Cité)
-
Katia MICHIELSEN (LPSC Grenoble- UGA, CNRS)
-
Leonora Kardum
-
Antoine AMY (Subatech)
-
Thiziri AMEZZA (LPNHE)
-
Théo Cuisset (LLR / Ecole Polytechnique - CNRS)
-
Matteo Galli (APC - Paris)
-
Matteo Galli (APC - Paris)
-
Arthur Lafarge (Université Clermont Auvergne (FR), LPCA (Clermont-Ferrand))
Choisissez le fuseau horaire
Le fuseau horaire de votre profil: