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CERN Accelerating science

CERN Published Articles

Latest additions:
2022-06-24
06:54
Hadronic light-by-light contribution to $(g-2)_\mu$ from lattice QCD: a complete calculation / Chao, En-Hung (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Hudspith, Renwick J (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Gérardin, Antoine (Aix-Marseille U.) ; Green, Jeremy R (CERN) ; Meyer, Harvey B (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys. ; Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Ottnad, Konstantin (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.)
The tension between the theoretical prediction and the experimental result of the anomalous magnetic moment of the muon, $a_\mu\equiv(g-2)_\mu/2$, is one of the long-standing puzzles of modern particle physics. After the update of the Fermilab E989 experiment in April 2021, the discrepancy between theory and experiment lies at the 4.2-sigma level. [...]
MITP-21-050.- 2022 - 10 p. - Published in : PoS LATTICE2021 (2022) 209 Fulltext: PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.209

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2022-06-24
06:54
Critical behaviour and phase structure of 3d Scalar+Gauge Field Theories in the adjoint representation / Rocha, Henrique Bergallo (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Del Debbio, Luigi (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Dobson, Elizabeth (U. Edinburgh, Higgs Ctr. Theor. Phys. ; Graz U.) ; Jüttner, Andreas (Southampton U. ; CERN) ; Kitching-Morley, Ben (Southampton U.) ; Lee, Joseph K L (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Portelli, Antonin (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Skenderis, Kostas (Southampton U.)
In a class of holographic models for cosmology, the dual theory is given by a massless super-renormalisable QFT in 3 dimensions. In order to obtain cosmological observables, correlators of this QFT may be obtained via lattice field theory. [...]
2022 - 9 p. - Published in : PoS LATTICE2021 (2022) 270 Fulltext: PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.270

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2022-06-24
06:54
HVP contribution to Running Coupling and Electroweak Precision Science / Miura, Kohtaroh (Helmholtz Inst., Mainz ; Darmstadt, GSI ; KMI, Nagoya) ; Cè, Marco (CERN) ; Gérardin, Antoine (Aix-Marseille U.) ; von Hippel, Georg (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Meyer, Harvey B (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Ottnad, Konstantin (Mainz U., Inst. Kernphys. ; U. Mainz, PRISMA) ; Risch, Andreas (NIC, Zeuthen) ; San Jose, Teseo (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Wilhelm, Jonas (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA ; Mainz U., Inst. Kernphys. ; CERN) ; Wittig, Hartmut (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA ; Mainz U., Inst. Kernphys. ; CERN)
We investigate the impact of the latest Mainz/CLS collaboration’s result for the hadronic vacuum polarization (HVP) on the electroweak (EW) precision science. The subject is closely related to the muon g-2 via the HVP. [...]
2022 - 9 p. - Published in : PoS LATTICE2021 (2022) 342 Fulltext: PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.342

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2022-06-24
06:54
Magnetic Measurements at Warm of the First FCC-ee Final Focus Quadrupole Prototype / Koratzinos, Michael (MIT ; CERN) ; Kirby, Glyn (CERN) ; Liebsch, Melvin (CERN) ; Petrone, Carlo (CERN)
The first FCC-ee final focus quadrupole prototype has been designed, manufactured, assembled and tested at warm. The prototype is a single aperture quadrupole magnet of the CCT type. [...]
arXiv:2105.13230; THPAB013.- Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3777-3780 Fulltext: document - PDF; 2105.13230 - PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3777-3780

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2022-06-22
06:27
Fabrication and test of a 5 GHz kladistron / Plouin, Juliette (U. Paris-Saclay) ; Marchand, Claude (U. Paris-Saclay) ; Hamel, Pierrick (U. Paris-Saclay) ; Arsenyev, Sergey (U. Paris-Saclay) ; Mollard, Antoine (Thales Electron Devices, Velizy) ; Beunas, Armel (Thales Electron Devices, Velizy) ; Peauger, Franck (CERN)
A 5 GHz klystron of type “kladistron” has been designed and realized. It was adapted from the TH2166 from Thales, where the interaction line was transformed from 6 to 16 cavities. [...]
2021 - 2 p. - Published in : 10.1109/IVEC51707.2021.9722532
In : 22nd IEEE International Vacuum Electronics Conference (IVEC 2021), Online, US, 27 - 30 Apr 2021

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2022-06-22
06:27
Production of Radioactive Molecular Ions in Radiofrequency Quadrupole Gas-Reaction Cells / Charles, Chris R J (TRIUMF) ; Ames, Friedhelm (TRIUMF) ; Kester, Oliver (TRIUMF) ; Malbrunot-Ettenauer, S (CERN) ; Babcock, Carla (TRIUMF) ; Schultz, Brad E (TRIUMF) ; Peters, Cameron (TRIUMF ; Waterloo U.) ; Flannigan, Erin L (U. Ottawa) ; Alary, Jean-Francois (Unlisted, CA) ; Laxdal, Aurelia (TRIUMF) et al.
Limited types of radioactive molecules (RM) can be made inside hot-cavity targets at ISOL facilities like TRIUMF. However, extreme conditions in these targets present formidable unsolved challenges to efficient production and delivery of RM’s. [...]
2022 - 5 p. - Published in : J. Phys. : Conf. Ser. 2244 (2022) 012100 Fulltext: PDF;
In : 19th International Conference on Ion Sources (ICIS 2021), Vancouver, BC, Canada, 20 - 24 Sep 2021, pp.012100

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2022-06-22
06:27
Comparative analysis of recirculating and collimating cesium ovens / Hahn, Raphaël (U. Paris-Saclay) ; Battard, Thomas (U. Paris-Saclay) ; Boucher, Oscar (U. Paris-Saclay) ; Picard, Yan J (U. Paris-Saclay) ; Lignier, Hans (U. Paris-Saclay) ; Comparat, Daniel (U. Paris-Saclay) ; Keriel, Nolwenn-Amandine (U. Paris-Saclay) ; Lopez, Colin (U. Paris-Saclay) ; Oswald, Emanuel (CERN) ; Reveillard, Morgan (Unlisted, FR) et al.
We have performed a study of several cesium oven designs. A comparison between recirculating (or sticking-wall) and collimating (or re-emitting-wall) ovens is made in order to extract the most efficient design in terms of beam brightness. [...]
2022 - 12 p. - Published in : Rev. Sci. Instrum. 93 (2022) 043302

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2022-06-22
06:27
Timepix3 detector for measuring radon decay products / Tamburrino, A (ENEA, Frascati ; INFN, Italy ; Rome U., La Sapienza, Dip. di Astron.) ; Claps, G (ENEA, Frascati ; INFN, Italy) ; Cordella, F (ENEA, Frascati ; INFN, Italy) ; Murtas, F (INFN, Italy) ; Pacella, D (ENEA, Frascati ; INFN, Italy)
The present work is focused on the characterization of a Timepix3 (TPX3) based test system for the identification of particles produced by the complex decay chain of $^{222}$Rn. The detector used is composed of a pixelated Cadmium Telluride (CdTe) semiconductor (500 μm thick) bump-bonded on an ASIC TPX3 chip. [...]
2022 - 12 p. - Published in : JINST 17 (2022) P06009

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2022-06-22
06:27
Update of the Transverse Proton Synchrotron Impedance Model / Joly, Sébastien (CERN ; Rome U.) ; Migliorati, Mauro (INFN, Rome ; Rome U. ; CERN) ; Mounet, Nicolas (CERN) ; Salvant, Benoit (CERN)
The CERN Proton Synchrotron (PS) was recently upgraded to allow reaching the ambitious performance goal of the High-Luminosity LHC Project. This upgrade is part of the LHC Injectors Upgrade project. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3149-3152 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3149-3152

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2022-06-22
06:27
Novel Open Cavity for Rotating Mode SLED-Type RF Pulse Compressors / Wu, Xiaowei (CERN) ; Grudiev, Alexej (CERN)
A new X-band high-power rotating mode SLAC Energy Doubler (SLED)-type rf pulse compressor is proposed. It is based on a novel cavity type, a single open bowl-shape energy storage cavity with high Q₀ and compact size, which is coupled to the waveguide using a compact rotating mode launcher. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 1547-1550 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1547-1550

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