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A history of CERN in seven physics milestones
/ Riti, Federica (CERN) ; Gadow, Philipp (CERN) ; Walter, David (CERN) ; Vieites Diaz, Maria (CERN) ; Latacz, Barbara Maria (CERN) ; Dello Stritto, Luigi (CERN) ; Bokan, Petar (CERN)
Over the past 70 years, CERN’s accelerators and experiments have delivered some remarkable results and discoveries, owing to the efforts of generations of physicists. We asked seven of the new generation — all CERN Fellows, in the early stages of their career — to tell us about some of the milestone achievements in the history of their laboratory..
2024 - 5 p.
- Published in : Nature Rev. Phys. 6 (2024) 582-586
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Ultra-thin polymer foil cryogenic window for antiproton deceleration and storage
/ Latacz, B.M. (CERN ; RIKEN (main)) ; Arndt, B.P. (Heidelberg, Max Planck Inst. ; Darmstadt, GSI) ; Devlin, J.A. (CERN ; RIKEN (main)) ; Erlewein, S.R. (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Fleck, M. (RIKEN (main) ; Tokyo U., Komaba) ; Jäger, J.I. (CERN ; RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Micke, P. (CERN ; RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Umbrazunas, G. (RIKEN (main) ; Zurich, ETH) ; Wursten, E. (RIKEN (main)) ; Abbass, F. (Mainz U., Inst. Phys.) et al.
We present the design and characterisation of a cryogenic window based on an ultra-thin aluminised PET foil at T < 10K, which can withstand a pressure difference larger than 1bar at a leak rate < $1\times 10^{-9}$ mbar$\cdot$ l/s. Its thickness of approximately 1.7 $\mu$m makes it transparent to various types of particles over a broad energy range. [...]
arXiv:2308.12873.-
2023-10-01 - 11 p.
- Published in : Rev. Sci. Instrum. 94 (2023) 103310
Fulltext: 2308.12873 - PDF; Publication - PDF;
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Trap-integrated fluorescence detection with silicon photomultipliers for sympathetic laser cooling in a cryogenic Penning trap
/ Wiesinger, M. (Heidelberg, Max Planck Inst.) ; Stuhlmann, F. (Mainz U., Inst. Phys.) ; Bohman, M. (Heidelberg, Max Planck Inst.) ; Micke, P. (Heidelberg, Max Planck Inst. ; CERN) ; Will, C. (Heidelberg, Max Planck Inst.) ; Yildiz, H. (Mainz U., Inst. Phys.) ; Abbass, F. (Mainz U., Inst. Phys.) ; Arndt, B.P. (Heidelberg, Max Planck Inst. ; Darmstadt, GSI ; Wako, RIKEN) ; Devlin, J.A. (CERN ; Wako, RIKEN) ; Erlewein, S. (Heidelberg, Max Planck Inst. ; Wako, RIKEN) et al.
We present a fluorescence-detection system for laser-cooled 9Be+ ions based on silicon photomultipliers (SiPM) operated at 4 K and integrated into our cryogenic 1.9 T multi-Penning-trap system. Our approach enables fluorescence detection in a hermetically-sealed cryogenic Penning-trap chamber with limited optical access, where state-of-the-art detection using a telescope and photomultipliers at room temperature would be extremely difficult. [...]
arXiv:2308.02365.-
2023-12-01 - 12 p.
- Published in : Rev. Sci. Instrum. 94 (2023) 123202
Fulltext: document - PDF; 2308.02365 - PDF;
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Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud
/ Adrich, P. (NCBJ, Swierk) ; Blumer, P. (Zurich, ETH) ; Caratsch, G. (Zurich, ETH) ; Chung, M. (UNIST, Ulsan) ; Cladé, P. (Paris, Lab. Kastler Brossel) ; Comini, P. (IRFU, Saclay) ; Crivelli, P. (Zurich, ETH) ; Dalkarov, O. (Unlisted) ; Debu, P. (IRFU, Saclay) ; Douillet, A. (Paris, Lab. Kastler Brossel ; U. Evry) et al.
We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The antiproton beam was delivered by the AD/ELENA facility. [...]
arXiv:2306.15801.-
2023-11-06 - 18 p.
- Published in : Eur. Phys. J. C
Fulltext: 2306.15801 - PDF; Publication - PDF; Erratum - PDF;
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BASE—high-precision comparisons of the fundamental properties of protons and antiprotons
/ Latacz, B M (RIKEN (main) ; CERN) ; Arndt, B P (RIKEN (main) ; Heidelberg, Max Planck Inst. ; Darmstadt, GSI) ; Bauer, B B (RIKEN (main) ; Mainz U., Inst. Phys.) ; Devlin, J A (RIKEN (main) ; CERN) ; Erlewein, S R (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Fleck, M (RIKEN (main) ; Tokyo U., Math. Sci.) ; Jäger, J I (RIKEN (main) ; CERN ; Heidelberg, Max Planck Inst.) ; Schiffelholz, M (RIKEN (main) ; Leibniz U., Hannover) ; Umbrazunas, G (RIKEN (main) ; ETH, Zurich (main)) ; Wursten, E J (RIKEN (main)) et al.
The BASE collaboration at the antiproton decelerator/ELENA facility of CERN compares the fundamental properties of protons and antiprotons with ultra-high precision. Using advanced Penning trap systems, we have measured the proton and antiproton magnetic moments with fractional uncertainties of 300 parts in a trillion (p.p.t.) and 1.5 parts in a billion (p.p.b.), respectively [...]
2023 - 8 p.
- Published in : Eur. Phys. J. D 77 (2023) 94
Fulltext: PDF;
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BASE-STEP: A transportable antiproton reservoir for fundamental interaction studies
/ Smorra, C. (Mainz U., Inst. Phys. ; Wako, RIKEN) ; Abbass, F. (Mainz U., Inst. Phys.) ; Schweitzer, D. (Mainz U., Inst. Phys.) ; Bohman, M. (Wako, RIKEN ; Heidelberg, Max Planck Inst.) ; Dutheil, Y. (CERN) ; Hobl, A. (Babcock Noell, Wuerzburg) ; Popper, D. (Mainz U., Inst. Phys.) ; Arndt, B. (Wako, RIKEN ; Heidelberg, Max Planck Inst. ; Darmstadt, GSI) ; Bauer, B.B. (Mainz U., Inst. Phys. ; Wako, RIKEN) ; Devlin, J.A. (Wako, RIKEN ; CERN) et al.
Currently, the only worldwide source of low-energy antiprotons is the AD/ELENA facility located at CERN. To date, all precision measurements on single antiprotons have been conducted at this facility and provide stringent tests of the fundamental interactions and their symmetries. [...]
arXiv:2304.09555.-
2023-11-01 - 14 p.
- Published in : Rev. Sci. Instrum. 94 (2023) 113201
Fulltext: PDF;
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