CERN Accélérateur de science

Video Lectures

Derniers ajouts:
2023-01-30
15:11
A Celestial Matrix Model / Kar, Arjun (speaker) (University of British Columbia)
Understanding the proper formulation of AdS holography in two spacetime dimensions has led to fascinating progress in several directions.  The main novel ingredient compared to higher dimensions is that the asymptotic behavior of the metric is only "nearly'' AdS in a certain precise sense.  This difference allows for a very simple theory, Jackiw-Teitelboim gravity, to have a non-perturbative completion as a Hermitian matrix model.  In this talk, we propose analogous modifications of the flat space boundary conditions in two dimensional dilaton gravity.  These modifications allow a very simple theory, which we call Cangemi-Jackiw gravity, to have a non-perturbative completion as a random matrix model.  We will discuss the Lorentzian and Euclidean formulations of this model, challenges in computing its non-perturbative scattering matrix, and which of its lessons are potentially applicable to four-dimensional celestial holography..
2023 - 0:57:43. TH String Theory Seminar External link: Event details In : A Celestial Matrix Model

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2023-01-30
08:38
The science and technology of DUNE / Terranova, Francesco (speaker) (Universita & INFN, Milano-Bicocca (IT))
The DUNE experiment is one of the most ambitious projects ever conceived in neutrino physics and is currently under construction at Fermilab and SURF. Its science addresses neutrino oscillations with a wide-band accelerator neutrino beam, together with astroparticles, multimessenger physics, and physics beyond the Standard Model using natural sources. [...]
2023 - 0:54:47. CERN Colloquium External link: Event details In : The science and technology of DUNE

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2023-01-25
09:20
Analyses combination in SModelS / Waltenberger, Wolfgang (speaker) (Austrian Academy of Sciences (AT))
We report on new developments in SModelS, in particular the functionality of analyses combination introduced in v2.2..
2022 - 0:22:06. Workshops; (Re)interpretation of the LHC results for new physics External links: Talk details; Event details In : (Re)interpretation of the LHC results for new physics

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2023-01-25
09:20
Recent ALICE results on $\psi$(2S) production / Scomparin, Enrico (speaker) (Universita e INFN Torino (IT))
Quarkonia represent a key observable for our understanding of the quark-gluon plasma (QGP) properties, and more generally for the investigation of the QCD color force in a strongly interacting environment. In heavy-ion collisions at LHC energy, significant suppression and regeneration effects were observed and analyzed in detail for the J/$\psi$. [...]
2023 - 0:50:51. LHC Seminar External link: Event details In : Recent ALICE results on $\psi$(2S) production

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2023-01-24
16:26
The use of Micro-Pattern Technologies in Micro-Pattern Gaseous Detectors / De Oliveira, Rui (speaker) (CERN)
The construction of Micro-Pattern Gaseous Detectors (MPGD) is the main focus of the Micro-Pattern Technologies (MPT) workshop at CERN. After a brief introduction to the activities of the MPT workshop, the presentation will retrace the technological developments for three different types of MPGDs that made it possible to obtain such detectors, which are now deployed on a large scale in particle physics experiments.The First example presented will be GEM detectors, where the step of going from a photoimageable polyimide, used in micro-electronics to passivate integrated circuits, to a particle detector able to operate more efficiently than wire chambers in the very harsh and challenging environment of high-energy physics experiments.The second example retraces the path followed to go from a stainless steel grid, used for screen printing of patterns on textiles or posters, to the production of MicroMegas detectors, used for example for the New Small Wheels (NSW) of the ATLAS experiment.The last example will deal with µ-Rwell detectors, a technology initially abandoned as soon as it appeared after the development of GEMs in 1998, but which is now revealing its full potential after being neglected for more than 20 years. [...]
2023 - 1:05:50. Detector Seminar External link: Event details In : The use of Micro-Pattern Technologies in Micro-Pattern Gaseous Detectors

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2023-01-24
16:26
Towards a Dynamic Production of Global Land Cover Maps / Sedona, Rocco (speaker) (Forschungszentrum Jülich)
Land cover (LC) maps are a fundamental tool in a variety of fields such as climatology, ecology and geography, as their availability is crucial for the analysis of trends and recognition of patterns of phenomena that occur on the Earth’s surface. The dense Time Series of images with a worldwide coverage provided by current satellite missions allow the dynamic production of LC maps, and several methods have been recently proposed to generate maps at country, continental or global scale. [...]
2023 - 1:01:17. EP-IT Data Science Seminars External link: Event details In : Towards a Dynamic Production of Global Land Cover Maps

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2023-01-20
11:20
Non-conventional radionuclides in personalised medicine / Stora, Thierry (speaker) (CERN)
Abstract:Nuclear Medicine, and more particularly the so-called theranostics approach based on the combination of diagnostics and treatment drugs, has seen recent breakthroughs, originating from radionuclides made newly available notably for European academic and industrial R&D scientists.A striking example is the use of targeted radiopharmaceuticals directed to the Prostate Specific Membrane Antigen (PSMA) and Somatostatin Receptor targeted therapy with 177Lu beta-emitter. Alpha-emitting radionuclides have also been applied successfully in research and clinic. [...]
2023 - 1:12:06. Academic Training Lecture Regular Programme, 2022-2023 External link: Event details In : Non-conventional radionuclides in personalised medicine

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2023-01-19
09:42
Computing bulk microstates / Lee, Ji Hoon (speaker) (Perimeter Institute)
A central question in AdS/CFT is how the string degrees of freedom are organized in the dual gauge theory. In my talk, I present an exact formula that relates the BPS sectors of U(N) gauge theories and their string duals [...]
2023 - 1:24:15. TH String Theory Seminar External link: Event details In : Computing bulk microstates

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2023-01-18
17:03
Laser resonance ionization at ISOL facilities / Marsh, Bruce (speaker) (CERN)
Abstract:Radioisotopes science is a broad-reaching field encompassing topics such as atomic and nuclear physics, astrophysics, medical applications and material science.  Although some radioisotopes are naturally occurring on Earth the vast majority are available to us exclusively via artificial production in nuclear reactions [...]
2023 - 1:01:34. Academic Training Lecture Regular Programme, 2022-2023 External link: Event details In : Laser resonance ionization at ISOL facilities

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2023-01-17
16:24
Principles of radioisotope production with ISOL techniques, materials and ion sources / Rothe, Sebastian (speaker) (CERN)
Abstract: The ISOLDE radioactive isotope facility has been providing rare isotopes to users from around the world since more than 50 years, making it the oldest running experiment at CERN and is considered the mother of ISOL type facilities. In the ISOL method, a target is irradiated with a primary beam, creating secondary radioactive isotopes which are evaporated from the target matrix, extracted as ions, purified and then delivered in form of a beam of ions to the experimental setup. The interest of the scientists requesting these isotopes ranges from fundamental nuclear structure and nuclear astrophysics, over solid state physics and semiconductor research to medical applications. At ISOLDE over 1000 different radioisotopes of the 6000 that are predicted to exist In this lecture we will introduce how isotopes are artificially created and delivered to users at ISOLDE.  We will discuss the constraints and requirements to the target materials and ion source selection, illustrated by several use cases We will highlighting current developments towards tailor-made nano-structured target materials and ongoing target and ion source developments required to meet the demands of the user community for more exotic isotopes and purer beams. The following two lectures will focus on selective laser photoionization used to produce purest radioisotope beams and application of radioisotopes for nuclear medicine..
2023 - 1:04:04. Academic Training Lecture Regular Programme, 2022-2023 External link: Event details In : Principles of radioisotope production with ISOL techniques, materials and ion sources

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