# Prochains séminaires

17 févr. 2020
Retour de conferences d'été en électronique et instrumentation
MOHSSINE MENOUNI (CPPM/IN2P3/Aix-Marseille Université)
Alexandre Rozanov (CPPM-IN2P3-CNRS)
Jean-Pierre Cachemiche (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)
Fabrice GENSOLEN (CPPM, Aix Marseille Univ, CNRS/IN2P3, Marseille, France)
Début :
lundi 17 février 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 17 février 2020 à 16:00:00 heure normale d’Europe centrale
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24 févr. 2020
New evidence supporting the existence of the hypothetic X17 particle
Attila Krasznahorkay (CERN, Inst. of Nucl. Res. (ATOMKI))
Début :
lundi 24 février 2020 à 13:00:00 heure normale d’Europe centrale
Fin :
lundi 24 février 2020 à 15:00:00 heure normale d’Europe centrale
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9 mars 2020
L'offre de service du CC-IN2P3
Renaud Vernet (CCIN2P3)
Description :

Ce séminaire présentera le Centre de Calcul de l’IN2P3 et les services informatiques qu’il propose aux personnels IN2P3. Après un aperçu des missions fondamentales du Centre de Calcul et du rôle qu'il joue aujourd'hui aux niveaux national et international, nous décrirons plus précisément son offre de service. Cette offre répondant aux besoins scientifiques quotidiens de stocker des données, les traiter, partager la connaissance, travailler en collaboration etc., ce séminaire s'adresse à tous les acteurs de la recherche de votre unité. Nous terminerons la présentation par une session de discussion avec laquelle nous pourrons aller plus en profondeur sur certains aspects et recenser vos besoins.

Début :
lundi 9 mars 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 9 mars 2020 à 16:00:00 heure normale d’Europe centrale
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23 mars 2020
Probing extended Higgs and Dark Sectors with b-jets at the LHC
Matthias Saimpert (CERN)
Description :

In the Standard Model, Yukawa-like interactions are short-range interactions between the fermions and the Higgs boson. Even though these interactions have important macroscopic consequences, only a subset of them could be observed directly and their origin remains unclear. At the LHC, the top and the b-quark are very sensitive probes for particles with Yukawa-like interactions, due to their large mass. This includes Higgs bosons, but also new scalar particles predicted by theories beyond the standard model and connected to the dark sector. By virtue of the tbW branching ratio being close to 100%, both b- and top quarks are inferred by the presence of hadronic jets initiated by b-quarks, called b-jets, in the final state. I will introduce b-jet identification at the LHC and demonstrate its crucial role to study the coupling of the Higgs boson to third-generation fermions and probe the dark sector. I will highlight the importance of b-jet identification for the future steps of the LHC physics program and discuss the main experimental challenges.

Début :
lundi 23 mars 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 23 mars 2020 à 16:00:00 heure normale d’Europe centrale
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# 5 derniers séminaires

10 févr. 2020
Ondes Gravitationnelles: Einstein Telescope et la nouvelle génération de détecteurs
Gianpietro CAGNOLI ({UNIV CLAUDE BERNARD}UMR5306)
Description :

Next few decades will be extremely exciting in Astronomy. New telescopes will enter in operation on Earth and in space; at the same time a new generation of Gravitational Wave detectors will be so powerful that they will detect the merging of black-holes binaries in the whole visible universe, up to a redshift of one hundred. Studying high energy events with a true Multi-Messenger Astronomy will give us a fantastic opportunity to discover new objects and new physics.

After a short introduction on the science case for a new generation of GW detectors, the presentation will be focused on the many challenges that scientists need to face to reduce the internal noise of the interferometers by a factor 10 with respect the current generation of instruments. Both the collaborations of Virgo and LIGO have prepared conceptual design and design studies that are attracting new scientists every day.

In Europe a collaboration has started to be formed around the project called Einstein Telescope. Details will be given on this observatory made of several interferometers working at cryogenic as well as at room temperatures. The CNRS is already involved in the whole field of GW but many scientists in France can find opportunities in this new field, applying their expertise on the detector development as well as on data analysis or astrophysics.

Début :
lundi 10 février 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 10 février 2020 à 16:00:00 heure normale d’Europe centrale
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3 févr. 2020
Quantum Computing
Bogdan Vulpescu (Laboratoire de Physique de Clermont)
Description :
Quantum Computing - an introduction for computing scientists

Performing computing and solving problems using the quantum behaviour of the
systems is an old dream. For example, the exponential complexity of the
many-body problems needs exponentially increasing computing resources, but
becomes linear when using registers of qubits (which can be manipulated
synchronously through unitary operators). Beyond specific situations related
to solving problems in quantum mechanics, the idea appeared that it could be
possible to perform generic computing (beginning with the elementary
operations) and move forward from the "classical" computers we have been using

the quantum computing, since there is an increasing interest from the
community of computing scientists, programmers and administrators. At the same,
time, there is a legitimate preoccupation regarding the evolution of those
professions, in particular at IN2P3 and a desire to join the (theoretical)
research effort expressed clearly at the level of the European Community.
Début :
lundi 3 février 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 3 février 2020 à 16:00:00 heure normale d’Europe centrale
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27 janv. 2020
The LUXE Experiment in Hamburg: probing quantum physics in a new regime
Beate Heinemann (UC Berkeley and Lawrence Berkeley National Lab)
Description :
Abstract:
This talk describes LUXE (Laser Und XFEL Experiment), an experiment that aims to use the high-quality and high-energy electron beam of the European XFEL and a powerful laser. The scientific objective of the experiment is to study quantum electrodynamics in the regime of strong fields, close to and beyond the Schwinger critical field. Within a strong electromagnetic field, the vacuum itself is expected to become unstable and spark with spontaneous creation of electron-positron pairs. This experimentally new regime is relevant to a variety of phenomena in Nature, e.g. in the areas of astrophysics, collider physics or atomic physics. It is anticipated that the LUXE experiment electrons accelerated by the European XFEL Linac shall experience a field three times larger than the critical field, and pioneer this regime of quantum physics. In this talk the science case and the experimental setup are described. The setup requires in particular the extraction of a minute fraction of the electron bunches from the European XFEL Linac, the installation of a powerful laser with sophisticated diagnostics, and an array of precision detectors optimized to measure electrons, positrons and photons.
Début :
lundi 27 janvier 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 27 janvier 2020 à 16:00:00 heure normale d’Europe centrale
Endroit :
CPPM (Auditorium)
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20 janv. 2020
EHT (Séminaire reporté!)
Roman Gold (ITP Goethe-University Frankfurt)
Description :

Séminaire conjoint CPPM-CPT

Début :
lundi 20 janvier 2020 à 14:00:00 heure normale d’Europe centrale
Fin :
lundi 20 janvier 2020 à 16:00:00 heure normale d’Europe centrale
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20 déc. 2019
Discussion "Scénarios pour les futurs collisionneurs" en lien avec ESPP
Description :

Actual meeting at LPNHE Paris

Agenda: https://indico.in2p3.fr/event/20221/

Début :
vendredi 20 décembre 2019 à 14:00:00 heure normale d’Europe centrale
Fin :
vendredi 20 décembre 2019 à 17:00:00 heure normale d’Europe centrale
Endroit :
CPPM (Auditorium)
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