2023-03-31
16:58 |
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An optically readout TPC for Rare Events study: The CYGNO project
/ Piacentini, Stefano (speaker) (Universita' di Roma, La Sapienza and INFN Roma (IT))
In recent years, there have been significant advancements in gaseous detectors, particularly Time Projection Chambers (TPCs), for detecting low-energy rare events. These detectors are sensitive to the charge released in the gas by ionizing radiation with energy deposits as low as few tens of electronvolts and also provide the topology of the ionization trail when coupled to suitable Micro Pattern Gas Detectors. [...]
2023 - 1:07:14.
Detector Seminar
External link: Event details
In : An optically readout TPC for Rare Events study: The CYGNO project
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2023-03-31
09:18 |
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High Power Targetry R&D program with the RaDIATE Collaboration and target perspectives in the framework of Snowmass
/ Pellemoine, Frederique (speaker) (Fermi National Accelerator Laboratory)
A high-power target system is a key beam element to complete future High Energy Physics (HEP) experiments.In the recent past, major accelerator facilities [1,3] have been limited in beam power not by their accelerators, but by the beam intercepting device survivability. The target must then endure high power pulsed beam [4], leading to high cycle thermal stresses/pressures and thermal shocks. The increased beam power will also create significant challenges such as corrosion and radiation damage that can cause harmful effects on the material and degrade their mechanical and thermal properties during irradiation [...]
2023 - 1:18:18.
A&T Seminar
External link: Event details
In : High Power Targetry R&D program with the RaDIATE Collaboration and target perspectives in the framework of Snowmass
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Record dettagliato - Record simili
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2023-03-30
15:45 |
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2023-03-29
14:16 |
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Quantum Gravity Bounds on 4D EFTs with Minimal Supersymmetry
/ Weigand, Timo (speaker) (Hamburg University)
According to the Swampland idea, quantum gravity effects put severe constraints on effective field theories beyond the usual consistency conditions from quantum field theory such as absence of gauge or gravitational anomalies. In this talk, we propose such constraints for four-dimensional N=1 supergravities based on consistency of certain axionic, or EFT, strings. [...]
2023 - 1:12:18.
TH String Theory Seminar
External link: Event details
In : Quantum Gravity Bounds on 4D EFTs with Minimal Supersymmetry
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2023-03-29
14:15 |
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Observation of tttt production by the CMS Collaboration
/ Skovpen, Kirill (speaker) (Ghent University (BE))
We report the observation of the tttt production in LHC collisions, performed on the data collected by CMS during Run2 (2016-2018). The production of tttt decays is one of the most rare processes at the LHC and among the most complex and rich signatures to study due to the large jet and lepton multiplicity in its final state. [...]
2023 - 1:03:55.
LHC Seminar
External link: Event details
In : Observation of tttt production by the CMS Collaboration
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2023-03-23
08:54 |
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Infinite Distance Limits and Factorization
/ Stout, John (speaker) (Harvard University)
Infinite distance limits in families of quantum theories are observed to enjoy a number of seemingly universal properties: they have "logarithmic" metric singularities, are always associated with weak-coupling limits, and---in quantum gravitational theories---are tied to the appearance of a tower of exponentially light fields. The goal of this talk is to explain why these features are universal. [...]
2023 - 1:13:26.
TH String Theory Seminar
External link: Event details
In : Infinite Distance Limits and Factorization
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2023-03-21
15:41 |
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Measurement of $R(D^*)$ with hadronic $\tau^+$ decays at $\sqrt{s}$ = 13 TeV by the LHCb collaboration
/ Puthumanaillam, Resmi (speaker) (University of Oxford (GB))
The ratios of branching fractions $R(D^{(*)}) = {\cal B}(B^0 \to D^{(*)}\tau \nu_{\tau})/{\cal B}(B^0 \to D^{(*)} \ell \nu_{\ell})$, with $\ell = \mu, e$, allow to test lepton flavour universality in semi-leptonic $b$-decays and have been measured by BaBar, Belle and LHCb collaborations. The measurements have attracted significant attention as the difference between the experimental world-average values of $R(D^*)$ and $R(D)$ and their theoretical prediction is at the level of three standard deviations [...]
2023 - 0:55:32.
LHC Seminar
External link: Event details
In : Measurement of $R(D^*)$ with hadronic $\tau^+$ decays at $\sqrt{s}$ = 13 TeV by the LHCb collaboration
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2023-03-21
11:29 |
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Neuromorphic Event-based Vision: Technology and Applications
/ Posch, Christoph (speaker) (Co-Founder and CTO at PROPHESEE)
Neuromorphic event-based vision is an emerging paradigm of acquisition and processing of visual information that takes inspiration from the functioning of the human vision system, attempting to recreate Nature's visual information acquisition and processing on VLSI silicon. In contrast to conventional image sensors, event vision sensors do not use a common sampling rate (=frame rate) for all pixels, but each individual pixel autonomously defines the timing of its own sampling points in response to its visual input by reacting to changes of incident light in continuous time. [...]
2023 - 1:14:57.
Detector Seminar
External link: Event details
In : Neuromorphic Event-based Vision: Technology and Applications
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2023-03-15
17:26 |
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2023-03-15
11:49 |
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