CERN Accelerating science

Video Lectures

新增:
2020-07-03
12:37
Lattice and Effective Field Theories for Hard Probes / brambilla, Nora (speaker)
2020 - 0:25:41. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-02
11:14
Restricted
HR Public Presentation / Purvis, James (speaker) (CERN)
2020 - 0:59:33. HR Public Meetings; HR Public Presentation - Record in French External links: Talk details; Event details In : HR Public Presentation - Record in French

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2020-07-02
09:40
Flash Talk 5 / Park, Jonghan (speaker) (Inha University (KR))
2020 - 0:04:51. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
13:19
Recent results on open heavy flavour with ALICE (by F.G.) - Recent results on jets and high-pT hadrons with ALICE (by L.B.H.) / Grosa, Fabrizio (speaker) (Universita e INFN Torino (IT)) ; Havener, Laura Brittany (speaker) (Yale University (US))
First talk (30'): Heavy flavours are recognised as excellent probes of the colour-deconfined state of the hadronic matter called quark-gluon plasma (QGP) created in heavy-ion collisions. Due to the very short time scale characterising their production, they experience the whole evolution of the system serving as Brownian-motion markers of the QGP [...]
2020 - 1:17:27. LHC Seminar External link: Event details In : Recent results on open heavy flavour with ALICE (by F.G.) - Recent results on jets and high-pT hadrons with ALICE (by L.B.H.)

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2020-07-01
13:10
$J/\psi$ production in jets in p+p collisions at $\sqrt{s}$ = 500 GeV by STAR / Yang, Qian (speaker) (Shandong University)
The suppression of $J/\psi$ production caused by the color-screening effect in heavy-ion collisions is considered as an evidence of the creation of quark-gluon plasma. To interpret the observed suppression in heavy-ion collisions, a good understanding of its production mechanism in p+p collisions is needed. [...]
2020 - 0:19:24. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
12:45
Entanglement, partial set of measurements, and diagonality of the density matrix in the parton model / Skokov, Vladimir (speaker) (North Carolina State University)
We consider the following conundrum: On one hand the proton as a quantum object is in a pure state and is described by a completely coherent wave function with zero entropy. On the other hand in high energy experiments (DIS) when probed by a small external probe, it behaves like an incoherent ensemble of (quasi-free) partons. [...]
2020 - 0:19:46. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
12:12
The problem of overlapping formation times: A complete result for QCD / Iqbal, Shahin (speaker) (Institute of Particle Physics, Central China Normal University)
The splitting processes of bremsstrahlung and pair-production in a medium are coherent over large distances in the high energy limit leading to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. Avoiding soft-emission approximations and working in the large-Nc limit, we consider corrections to the LPM effect from cases where the coherence lengths of two consecutive splittings overlap. [...]
2020 - 0:20:13. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
11:20
On gauge invariance of transverse momentum dependent distributions at small x / Mehtar-Tani, Yacine (speaker) (Brookhaven National Laboratory)
The interplay between the small x limit of QCD amplitudes and QCD factorization at moderate x has been studied extensively in recent years. It was finally shown that semiclassical formulations of small x physics can have the form of an infinite twist framework involving Transverse Momentum Dependent (TMD) distributions in the eikonal limit. [...]
2020 - 0:20:09. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
11:20
Revisiting heavy quark radiative energy loss in nuclei with in the high-twist approach / Du, Yilun (speaker) (University of Bergen)
We revisit the [calculation of multiple parton scattering of a heavy quark in nuclei][1] within [the framework of recently improved high-twist factorization formalism][2], in which gauge invariance is ensured by a delicate setup of the initial partons’ transverse momenta. We derive [a new result for the heavy quark radiative energy loss in deeply inelastic scattering][3] [...]
2020 - 0:17:09. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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2020-07-01
11:14
QCD Correlations in Multiple Gluon Bremsstrahlung / Horowitz, William Alexander (speaker) (University of Cape Town (ZA))
We compute for the first time the spectrum for emitting 1, 2, and 3 soft and collinear gluons from a hard scattering process in full QCD. This result is important because 1) all current energy loss calculations assume QED-like independent emissions of multiple gluons, which obviously misses all correlations from the non-Abelian nature of QCD, and 2) the average high-p$_{\mathrm{T}}$ parton emits ~3 gluons as it escapes the medium. [...]
2020 - 0:18:35. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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