|
1.
|
The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen
/ Akbari, R (British Columbia U.) ; Alves, B X R (Aarhus U.) ; Baker, C J (Swansea U.) ; Baquero-Ruiz, M (LPHE, Lausanne) ; Bertsche, W (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Butler, E (CERN) ; Burrows, C (Swansea U.) ; Capra, A (TRIUMF) ; Cesar, C L (Rio de Janeiro Federal U.) ; Charlton, M (Swansea U.) et al.
This paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. [...]
2025 - 24 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170194
Fulltext: PDF;
|
|
|
2.
|
Precision spectroscopy of the hyperfine components of the 1S–2S transition in antihydrogen
/ Baker, C J (Swansea U.) ; Bertsche, W (Manchester U. ; Daresbury) ; Capra, A (TRIUMF) ; Carruth, C (UC, Berkeley) ; Cesar, C L (Rio de Janeiro Federal U.) ; Charlton, M (Swansea U.) ; Christensen, A (UC, Berkeley) ; Collister, R (TRIUMF) ; Cridland Mathad, A (Swansea U.) ; Eriksson, S (Swansea U.) et al.
The antimatter equivalent of atomic hydrogen—antihydrogen—is an outstanding testbed for precision studies of matter–antimatter symmetry. Here we report on the simultaneous observation of both accessible hyperfine components of the 1S–2S transition in trapped antihydrogen. [...]
2025 - 7 p.
- Published in : Nature Phys. 21 (2025) 201-207
Fulltext: PDF;
|
|
|
3.
|
BGC monitor: first year of operation at the LHC
/ Zhang, Hao (Cockcroft Inst. Accel. Sci. Tech.) ; Rossi, Adriana (CERN) ; Pasquinom, C (CERN) ; Welsch, Carsten (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Sequeiro, Cristina (CERN) ; Butti, Daniele (CERN) ; Schneider, Gerhard (CERN) ; Sidorowski, Krystian (CERN) ; Ady, Marton (CERN) ; Sameed, Muhammed (CERN) et al.
The Beam Gas Curtain (BGC) monitor was installed in the beam one of the Large Hadron Collider (LHC) during Long Shutdown 2 (LS2) and the Year-End Technical Stop (YETS) 2022. The monitor detects the fluorescence signal generated due to the interaction between the charged particle beams in the LHC and the neon atoms in the supersonic gas curtain. [...]
2024 - 3 p.
- Published in : JACoW IBIC 2024 (2024) FRAC2
Fulltext: PDF;
In : 13th International Beam Instrumentation Conference (IBIC 2024), Beijing, China, 9-13 Sep 2024, pp.FRAC2
|
|
|
4.
|
Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2024)
2nd Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2024)
3 - 5 Apr 2024
- London, United Kingdom
/ Abdalla, Adam (Darmstadt, Tech. Hochsch.); Abe, Mahiro (Stanford U., Phys. Dept.); Abend, Sven (Leibniz U., Hannover); Abidi, Mouine (Leibniz U., Hannover); Aidelsburger, Monika (Munich, Max Planck Inst. Quantenopt. ; Munich U. ; Munich U., ASC ; MCQST, Munich); Alibabaei, Ashkan (Leibniz U., Hannover); Allard, Baptiste (LCAR, Toulouse); Antoniadis, John (Athens U.); Arduini, Gianluigi (CERN); Augst, Nadja (DLR, Berlin) et al.
This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024, building on the initial discussions during the inaugural workshop held at CERN in March 2023. Like the summary of the first workshop, this document records a critical milestone for the international atom interferometry community. [...]
2024 - 105 p.
arXiv:2412.14960
|
|
|
5.
|
|
|
6.
|
Gas jet-based beam profile monitor for the electron beam test stand at CERN
/ Stringer, O (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Zhang, H (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, M (CERN) ; Butti, D (CERN) ; Churchman, A R (CERN) ; Forck, P (Darmstadt, GSI) ; Kumar, N (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Sameed, M (CERN) et al.
A non-invasive bidirectional beam profile monitor using beam-induced fluorescence upon a thin sheet of gas has been developed at the Cockcroft Institute in collaboration with CERN and GSI. This device is particularly suited to the Electron Beam Test Stand, and as such, a bespoke gas injection has been optimized for this specific use-case to provide diagnostics unavailable to conventional scintillator screens. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPG18
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG18
|
|
|
7.
|
Specifications and Status of the New Electron Cooler for the CERN Antiproton Decelerator (AD)
/ Rossi, Adriana (CERN) ; Accettura, Carlotta (CERN) ; Andreazza, William (CERN) ; Bollazzi, Alessio (CERN) ; Cenede, Jean (CERN) ; Chritin, Nicolas (CERN) ; Coutron, Yannick (CERN) ; Ferreira Somoza, Jose (CERN) ; Frassier, Alexandre (CERN) ; Gamba, Davide (CERN) et al.
A new electron cooler for the Antiproton Decelerator (AD) is being designed at CERN, and will replace the current device (in operation for more than 40 years), during the next Long Shutdown (2026-2028). The functional specifications [ref. [...]
2024 - 6 p.
- Published in : JACoW COOL 2023 (2024) 5-10
Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.5-10
|
|
|
8.
|
Status of Beam Instrumentation at the Electron Beam Test Stand at CERN
/ Sameed, Muhammed (CERN) ; Ady, Marton (CERN) ; Burger, Stephane (CERN) ; Cenede, Jean (CERN) ; Churchman, Ashley (CERN) ; Coiffet, Thibaut (CERN) ; Devauchelle, Wilfried (CERN) ; Forck, Peter (Darmstadt, GSI) ; Ganesh, Abhishek (CERN) ; Guillot-Vignot, Franck (CERN) et al.
An electron beam test stand has been designed and constructed at CERN as part of the High Luminosity LHC (HL-LHC) project, in collaboration with the ARIES project, to test components related to the Hollow Electron Lens (HL-LHC) and the GSI Space Charge Compensation Electron Lens (ARIES). This comprehensive test facility incorporates normal conducting solenoid magnets, including horizontal and vertical correctors, which generate fields of fractional Tesla magnitude. [...]
2024 - 6 p.
- Published in : JACoW COOL 2023 (2024) TUPAM2R1
Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.TUPAM2R1
|
|
|
9.
|
Gas Jet-Based Fluorescence Profile Monitor for Low Energy Electrons and High Energy Protons at LHC
/ Sedláček, Ondrej (CERN ; U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, Marton (CERN) ; Churchman, Ashley (CERN) ; Forck, Peter (Darmstadt, GSI) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) ; Sameed, Muhammed (CERN) ; Schneider, Gerhard (CERN) ; Sequeiro, Cristina (CERN) ; Sidorowski, Krystian (CERN) et al.
The ever-developing accelerator capabilities of increasing beam intensity, e.g. for High Luminosity LHC (HL-LHC), demand novel non-invasive beam diagnostics. [...]
2023 - 6 p.
- Published in : JACoW IBIC 2023 (2023) 312-317
Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.312-317
|
|
|
10.
|
Beam gas curtain monitor: Vacuum studies for LHC integration and operation
/ Castro Sequeiro, C (CERN) ; Ady, M (CERN) ; Bregliozzi, G (CERN) ; Chatzigeorgiou, N (CERN) ; Churchman, A R (CERN) ; Kersevan, R (CERN) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Pigny, G (CERN) ; Rossi, A (CERN) et al.
A beam gas curtain (BGC) monitor has been designed to obtain information about the relative position between the LHC proton beam and the hollow electron lens electron beam through a minimally invasive process. Its working principle relies on intersecting the path of both beams with a supersonic gas curtain, introduced transversely into the LHC beamline, to produce a fluorescence signal. [...]
2024 - 10 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 043201
Fulltext: PDF;
|
|
e-postvarsel
eller abonner på 
RSS.