CERN Accelerating science

Video Lectures

Latest additions:
2021-01-19
13:35
Adiabatic hydrodynamization / Brewer, Jasmine Therese (speaker) (CERN)
2021 - 0:26:17. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
13:35
Influence of Initial Conditions with Sub-Structure in Small Systems / Soto Ontoso, Alba (speaker) (IPhT)
2021 - 0:23:47. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
13:35
Discussion: Low-x and gluon saturation / Lappi, Tuomas (speaker) (University of Jyvaskyla) ; Ullrich, Thomas (speaker) (Yale University (US)) ; Kovchegov, Yuri (speaker)
2021 - 1:15:36. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
12:02
Measurement of initial stages via color neutral probes in pPb and PbPb with the CMS detector / Baty, Austin Alan (speaker) (Rice University (US))
The electroweak process is often used to probe the parton distribution functions (PDFs) in a proton and the nuclear parton distribution functions (nPDFs) in heavy ions. In this presentation, the measurements of the Drell-Yan process in pPb collisions at 8.16 TeV and of Z bosons decaying to pairs of leptons in PbPb collisions using data collected at 5.02 TeV from the CMS experiment at the LHC will be summarized. In pPb collisions, the dimuon rapidity, mass, $p_{\text{T}}$, and $\phi^{*}$ (which is an angular variable correlated with $p_{\text{T}}$ measured for the first time in pPb collisions) dependences are shown. [...]
2021 - 0:21:28. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
11:46
Non-equilibrium attractor in high-temperature QCD plasmas / Almaalol, Dekrayat (speaker)
We establish the existence of a far-from-equilibrium attractor in weakly-coupled gauge theory undergoing one-dimensional Bjorken expansion. We demonstrate that the resulting far-from-equilibrium evolution is insensitive to certain features of the initial condition, including both the initial momentum-space anisotropy and initial occupancy. [...]
2021 - 0:26:01. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
11:46
Heavy Quark Energy Loss and Angular Distribution of the Radiation in the Moller Theory / Blok, Boris (speaker) (Physics Department)
We calculate the energy loss and angular radiation distribution for heavy quark propagating through the quark-gluon plasma at the LHC in the framework of the QCD extended Moller theory i.e. BDMPS formalism plus large Coulomb logarithms. [...]
2021 - 0:25:03. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
11:46
New results on ultra-peripheral collisions with ALICE / Lavicka, Roman (speaker) (Czech Technical University in Prague (CZ))
Photon-induced reactions in ultra-peripheral collisions (UPCs) of Pb-emphasized textPb nuclei at the LHC have been studied using the ALICE detector for several years. The ALICE detector can measure the photoproduction cross section for vector mesons at various rapidities, centre-of-mass energies and collision systems. [...]
2021 - 0:17:47. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
11:15
New Year presentation to personnel / Gianotti, Fabiola (speaker) (CERN)
Online event  To ask questions during the meeting, follow this link: https://dg-talk-qa.web.cern.ch/ Pour poser des questions durant la réunion, veuillez utiliser le lien suivant: https://dg-talk-qa.web.cern.ch/  
2021 - 2:01:42. DG presentations to personnel External link: Event details In : New Year presentation to personnel

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2021-01-19
11:06
Probing small-x gluons with the ALICE Forward Calorimeter upgrade / Novitzky, Norbert (speaker) (University of Tsukuba (JP))
We will present the design and physics performance of a high-granularity Forward Calorimeter (FoCal) upgrade for ALICE. The main goal of the FoCal detector is to measure isolated direct photon production to constrain the low-x gluon density in the proton and nuclei and to look for deviations from linear QCD evolution in the high gluon-density regime. [...]
2021 - 0:18:52. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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2021-01-19
10:54
Probing gluon saturation via semi-inclusive deep inelastic scattering at the EIC / Triantafyllopoulos, Dionysis (speaker) (ECT* Trento)
Within the dipole picture for electron-nucleus ($eA$) deep inelastic scattering (DIS) at small Bjorken $x$, we consider special, ``aligned jet", configurations, which are very asymmetric: one of the quarks from the dipole fluctuation of the virtual photon carries most of the longitudinal momentum of its parent. We argue that such configurations correspond to relatively large dipole sizes and thus can be sensitive to saturation effects in the nuclear target even for relatively hard processes, where the photon virtuality $Q^2$ is considerably larger than the target saturation momentum $Q_s^2$. [...]
2021 - 0:20:26. Conferences; Initial Stages 2021 External links: Talk details; Event details In : Initial Stages 2021

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