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2023-11-30
10:54
Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A search is reported for long-lived dark photons with masses between 0.1 GeV and 15 GeV, from exotic decays of Higgs bosons produced via vector-boson-fusion. [...]
CERN-EP-2023-226. - 2023.
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2023-11-30
07:04
Isolated Auxiliary Power Supply Designs Using COTS Components / van der Blij, Nils H (CERN) ; Gisbert, Dorian D ; Fernández, Arturo (European Space Agency)
Compared to components available for terrestrial applications, the availability of space-grade DC/DC converters for isolated auxiliary power supplies is very limited. [...]
2023. - 5 p.

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2023-11-30
07:04
Design of a 30kA pulsed current generator for a new eddy current septum in the CERN PS extraction. / Gräwer, Gregor (CERN) ; Ducimetière, Laurent (CERN) ; Huon, Stéphane (CERN)
The presently used direct drive septum magnet (PE.SMH16) deflects protons and ions into the extraction transfer line TT2 from PS ring SS16 towards the experimental areas of the PS complex and the SPS. [...]
2023. - 5 p.

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2023-11-30
07:03
bPOL48V, a rad-hard 48V DC/DC Converter for Space and HEP Applications / Michelis, Stefano (CERN) ; Van Der Blij, Nils Hans (CERN) ; Ripamonti, Giacomo (CERN) ; Antoszczuk, Pablo Daniel (CERN)
A radiation-hard DC/DC converter has been developed at CERN, which tolerates a higher input voltage (up to 48 V) and provides a larger output power than existing solutions. [...]
2023. - 4 p.

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2023-11-30
07:03
Commissioning and Operation of the New PSB KSW Painting Bumpers / Gräwer, Gregor (CERN) ; Bracco, Chiara (CERN)
In the framework of the LHC Injectors Upgrade project the Proton Synchrotron Booster (PSB) injection region has been substantially modified to allow for 160 MeV $\mathrm{H}^{-}$ injection into the 4 superposed PSB rings. [...]
2023. - 5 p.

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2023-11-30
05:41
Accelerated sparse Kernel Spectral Clustering for large scale data clustering problems / Novak, Mihaly (CERN) ; Langone, Rocco (Leuven U.) ; Alzate, Carlos ; Suykens, Johan (Leuven U.)
An improved version of the sparse multiway kernel spectral clustering (KSC) is presented in this brief. [...]
arXiv:2310.13381. - 13 p.
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2023-11-30
05:15
Knowledge Distillation for Anomaly Detection / Pol, Adrian Alan (Princeton U.) ; Govorkova, Ekaterina (MIT) ; Grönroos, Sonja (Helsinki U.) ; Chernyavskaya, Nadezda (CERN) ; Harris, Philip (MIT) ; Pierini, Maurizio (CERN) ; Ojalvo, Isobel (Princeton U.) ; Elmer, Peter (Princeton U.)
Unsupervised deep learning techniques are widely used to identify anomalous behaviour. [...]
arXiv:2310.06047. - 6 p.
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2023-11-30
04:57
Finite Feynman Integrals / Gambuti, Giulio ; Kosower, David A. ; Novichkov, Pavel P. ; Tancredi, Lorenzo
We describe an algorithm to organize Feynman integrals in terms of their infrared properties. [...]
TUM-HEP-1483/23 ; OUTP-23-13P ; CERN-TH-2023-218 ; arXiv:2311.16907. - 35 p.
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2023-11-30
04:44
ALPs, the on-shell way / Bertuzzo, Enrico ; Grojean, Christophe ; Salla, Gabriel M.
We study how the coupling between axion-like particles (ALPs) and matter can be obtained at the level of on-shell scattering amplitudes. [...]
CERN-TH-2023-202 ; DESY-23-090 ; HU-EP-23/21 ; arXiv:2311.16253. - 32 p.
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2023-11-29
17:20
LHC Triplet Task Force Report / Arduini, Gianluigi (CERN) ; Bradu, Benjamin (CERN) ; Brodzinski, Krzysztof (CERN) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Ciccotelli, Alessia (University of Manchester (GB)) ; Deferne, Guy (CERN) ; Fartoukh, Stephane (CERN) ; Fessia, Paolo (CERN) ; Garion, Cedric (CERN) et al.
The excellent performance of the Large Hadron Collider (LHC) and the extension of Run 3 by one year have led to a significant increase of the expected integrated luminosity by the end of its operation and before the start of the High Luminosity LHC (HL-LHC), exceeding the design LHC integrated luminosity of 300 fb−1 for which the final focus region has been designed. [...]
CERN-ACC-2023-0004. - 2023. - 95 p.
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