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Injection and capture of antiprotons in a Penning–Malmberg trap using a drift tube accelerator and degrader foil
/ Amsler, C. (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H. (Wako, RIKEN) ; Bumbar, M. (CERN) ; Chesnevskaya, S. (Stefan Meyer Inst. Subatomare Phys.) ; Costantini, G. (Brescia U. ; INFN, Pavia) ; Ferragut, R. (INFN, Milan ; Padua U. ; INFN, Padua) ; Giammarchi, M. (Padua U. ; INFN, Padua) ; Gligorova, A. (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, G. (Brescia U. ; INFN, Pavia) ; Higaki, H. (Hiroshima U.) et al.
The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018, now supplies a bunch of electron-cooled antiprotons at a fixed energy of 100 keV. [...]
arXiv:2403.09268.-
2024-06-12 - 22 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169529
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Antiproton annihilation at rest in thin solid targets and comparison with Monte Carlo simulations
/ Amsler, Claude (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, Horst (Wako, RIKEN) ; Bumbar, Marcus (CERN ; Vienna U.) ; Cerwenka, Matti (Stefan Meyer Inst. Subatomare Phys. ; Vienna U.) ; Costantini, Giovanni (Brescia U. ; INFN, Brescia ; INFN, Pavia) ; Ferragut, Rafael (Milan Polytechnic ; INFN, Milan ; Milan U.) ; Fleck, Markus (Stefan Meyer Inst. Subatomare Phys.) ; Giammarchi, Marco (INFN, Milan ; Milan U.) ; Gligorova, Angela (Stefan Meyer Inst. Subatomare Phys.) ; Gosta, Giulia (Brescia U. ; INFN, Brescia ; INFN, Pavia) et al.
/Asacusa AD-3
The mechanism of antiproton-nucleus annihilation at rest is not fully understood, despite substantial previous experimental and theoretical work. In this study we used slow extracted, sub-keV antiprotons from the ASACUSA apparatus at CERN to measure the charged particle multiplicities and their energy deposits from antiproton annihilations at rest on three different nuclei: carbon, molybdenum and gold. [...]
arXiv:2407.06721.-
Geneva : CERN, 2024-11-17 - 18 p.
- Published in : Eur. Phys. J. A 60 (2024) 225
Draft (restricted): PDF; Fulltext: CERN-EP-2024-182 - PDF; document - PDF; 2407.06721 - PDF;
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Injection and capture of antiprotons in a Penning-Malmberg trap using a drift tube accelerator and degrader foil
/ Amsler, C. ; Breuker, H. ; Bumbar, M. ; Chesnevskaya, S. ; Costantini, G. ; Ferragut, R. ; Giammarchi, M. ; Gligorova, A. ; Gosta, G. ; Higaki, H. et al.
/Asacusa AD-3
The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018, now supplies a bunch of electron- cooled antiprotons at a fixed energy of 100 keV. [...]
CERN-EP-2024-060.-
Geneva : CERN, 2024 - 22.
- Published in : Nucl. Instrum. Methods Phys. Res. A
Draft (restricted): PDF; Fulltext: PDF;
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A 16 Parts per Trillion Comparison of the Antiproton-to-Proton q/m Ratios
/ Borchert, M.J. (RIKEN (main) ; Leibniz U., Hannover ; Braunschweig, Phys. Tech. Bund.) ; Devlin, J.A. (RIKEN (main) ; CERN) ; Erlewein, S.E. (RIKEN (main) ; CERN ; Heidelberg, Max Planck Inst.) ; Fleck, M. (RIKEN (main) ; Tokyo U., Komaba) ; Harrington, J.A. (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Higuchi, T. (RIKEN (main) ; Tokyo U., Komaba) ; Latacz, B. (RIKEN (main)) ; Voelksen, F. (RIKEN (main) ; Darmstadt, GSI) ; Wursten, E. (RIKEN (main) ; CERN ; Heidelberg, Max Planck Inst.) ; Abbass, F. (Mainz U., Inst. Phys.) et al.
The Standard Model (SM) of particle physics is both incredibly successful and glaringly incomplete. [...]
arXiv:2311.16006.
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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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Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary
Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2023)
13 - 14 Mar 2023
- CERN, Geneva, Switzerland
/ Abend, Sven (Leibniz U., Hannover); Allard, Baptiste (LCAR, Toulouse); Alonso, Iván (Balearic Islands U.); Antoniadis, John (Crete U.); Araújo, Henrique (Imperial Coll., London); Arduini, Gianluigi (CERN); Arnold, Aidan S. (SUPA, UK ; Strathclyde U.); Aßmann, Tobias (Ulm U.); Augst, Nadja (DLR, Neustrelitz); Badurina, Leonardo (King's Coll. London ; Caltech) et al.
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. [...]
2023 - 99 p.
arXiv:2310.08183
- Published in : 10.1116/5.0185291
10.1116/5.0185291
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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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