CERN Accelerating science

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Ultimi arrivi:
2024-05-24
11:06
Modelling of the PS Beam Phase and Radial Feedback Loops / Naumenko, Oleksandr (Hamburg University (DE)) ; Lasheen, Alexandre (CERN)
This document describes the current models for the beam phase and the radial feedback loops of the analogue PS longitudinal beam control. [...]
CERN-ACC-NOTE-2024-0011.
- 2024. - 18 p.
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2024-05-24
00:09
Searches for New Physics Using Unsupervised Machine Learning for Anomaly Detection at the ATLAS Detector and the Development of Particle Identification Algorithms for the HL-LHC / Crosby, Jacob Edwin (Oklahoma State University (US))
This document contains discussions on completed and ongoing projects that have devel- oped over the past few years while working on the ATLAS detector located at CERN in Geneva, Switzerland. The first discussion will be on my qualification task for the ATLAS collaboration which is on the development and future plans of the DL1d tagger that is currently used as a base- line tagger for run 4 of the ATLAS detector. [...]
CERN-THESIS-2024-060.- 239 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-05-24
00:01
Searches for New Physics Using Unsupervised Machine Learning for Anomaly Detection at the ATLAS Detector and the Development of Particle Identification Algorithms for the HL-LHC / Crosby, Jacob Edwin (Oklahoma State University (US))
This document contains discussions on completed and ongoing projects that have devel- oped over the past few years while working on the ATLAS detector located at CERN in Geneva, Switzerland. The first discussion will be on my qualification task for the ATLAS collaboration which is on the development and future plans of the DL1d tagger that is currently used as a base- line tagger for run 4 of the ATLAS detector. [...]
CERN-THESIS-2024-059.- 239 p. Fulltext: PDF; External link: Approve this document (restricted)

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2024-05-23
07:32
Status and prospects of the HL-LHC project / Zerlauth, Markus (CERN) ; Brüning, Oliver (CERN)
This contribution summarizes the status of preparations and series production of key technologies for the HL-LHC upgrade project. The upgrade will be deployed in the LHC tunnel at the end of the currently ongoing third operational run of the LHC, by creating new underground areas and upgrading the existing LHC equipment, aiming to increase the data set collected by the main LHC experiments by another order of magnitude and starting operation as of 2029..
2024 - 8 p. - Published in : PoS EPS-HEP2023 (2024) 615 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.615

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2024-05-23
07:32
Status of the International Muon Collider Complex Study at 10 TeV / Skoufaris, Kyriacos (CERN) /International Muon Collider Collaboration
A circular muon collider, due to strong suppression of synchrotron radiation (muons are about 207 times heavier than electrons), can provide high energy (multi-TeV) collisions using fundamental (point-like) particles improving that way the energy frontiers of lepton-antilepton machines. A unique feature of muon colliders, is the significant increase of the luminosity per beam power with beam energy. [...]
2024 - 6 p. - Published in : PoS EPS-HEP2023 (2024) 629 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.629

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2024-05-23
07:32
Machine-Detector interface for multi-TeV Muon Collider / Bartosik, Nazar (INFN, Turin ; CERN) ; Calzolari, Daniele (CERN ; INFN, Padua ; Padua U.) ; Castelli, Luca (Rome U. ; INFN, Rome) ; Lechner, Anton (CERN) ; Lucchesi, Donatella (INFN, Padua ; CERN ; Padua U.) /International Muon Collider Collaboration
One of the challenges of the multi-TeV muon collider is mitigating the effects of beam-induced background. The primary contribution to this background has been identified as decay products of the muon beams. [...]
2024 - 6 p. - Published in : PoS EPS-HEP2023 (2024) 630 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.630

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2024-05-23
05:07
Impact of bunch intensity asymmetry in colliders featuring strong beamstrahlung / Le Nguyen Nguyen, Khoi (CERN ; EPFL-ISIC, Lausanne ; Cambridge U.) ; Buffat, Xavier (CERN) ; Kicsiny, Peter (CERN ; EPFL-ISIC, Lausanne) ; Pieloni, Tatiana (EPFL-ISIC, Lausanne)
An analytical investigation of beamstrahlung-induced blow-up in Gaussian beams with arbitrary dimensions is presented, using various approximations for the strength of the hourglass effect and crab waist scheme. [...]
arXiv:2404.09012.
- 25 p.
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2024-05-21
12:34
Chamonix Workshop 2024 summary / Lamont, Mike (CERN) ; Jones, Rhodri (CERN)
The Chamonix Workshop 2024 took place from 29 January to 1 February 2024 at the “Majestic” conference centre in Chamonix. [...]
CERN-ACC-NOTE-2024-0010.
- 2024. - 63 p.

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2024-05-21
12:21
LHC Performance Workshop 2022 summary / Lamont, Mike (CERN) ; Jones, Rhodri (CERN)
The LHC Performance Workshop took place from 24 to 27 January 2022 via video conference. [...]
CERN-ACC-NOTE-2024-0009.
- 2024. - 56 p.
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2024-05-16
07:44
Periodicity five lattice proposal for a cpedm prototype ring / Cilento, Vera (CERN) ; Carli, Christian (CERN)
The community studying facilities to measure a possible Electric Dipole Moment of a charged particle (cpEDM) in a storage ring agreed that a Prototype Storage-Ring (PSR) is required as intermediate step to address critical questions, gain experience and rule out showstoppers. In what follows, a new lattice proposal of the PSR with a periodicity five is described and spin tracking simulations are shown. [...]
2023 - Published in : JACoW IPAC 2023 (2023) MOPA086 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA086

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