2023-06-09
06:03 |
Pulsed Production of Antihydrogen in AEgIS
/ AEgIS Collaboration
Cold antihydrogen atoms are a powerful tool to probe the validity of fundamental physics laws, and it's clear that colder atoms, generally speaking, allow an increased level of precision.
After the first production of cold antihydrogen ($\bar{H}$) in 2002, experimental efforts have progressed continuously (trapping, beam formation, spectroscopy), with competitive results already achieved by adapting to cold antiatoms techniques previously well developed for ordinary atoms. Unfortunately, the number of $\bar{H}$ atoms that can be produced in dedicated experiments is many orders of magnitude smaller than available hydrogen atoms, which are at hand in large amount, so the development of novel techniques that allow the production of $\bar{H}$ with well defined conditions (and possibly control its formation time and energy levels) is essential to improve the sensitivity of the methods applied by the different experiments.
We present here the first experimental results concerning the production of $\bar{H}$ in a pulsed mode where the time when 90\% of
the atoms are produced is known with an uncertainty of around 250~ns. [...]
2022 - 7 p.
- Published in : PoS DISCRETE2020-2021 (2022) 079
Fulltext: PDF;
In : 7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2020-2021), Bergen, Norway, 29 Nov - 3 Dec 2021, pp.079
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2023-06-09
06:02 |
Linac-based positron source and generation of a high density positronium cloud for the GBAR experiment
/ Liszkay, L (IRFU, Saclay) ; Comini, P (IRFU, Saclay) ; Corbel, C (Ecole Polytechnique) ; Debu, P (IRFU, Saclay) ; Dupré, P (CSNSM, Orsay) ; Grandemange, P (CSNSM, Orsay) ; Pérez, P (IRFU, Saclay) ; Rey, J -M (IRFU, Saclay) ; Ruiz, N (IRFU, Saclay) ; Sacquin, Y (IRFU, Saclay)
The aim of the recently approved GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment is to measure the acceleration of neutral antihydrogen atoms in the gravitational field of the Earth. The experimental scheme requires a high density positronium cloud as a target for antiprotons, provided by the Antiproton Decelerator (AD) – Extra Low Energy Antiproton Ring (ELENA) facility at CERN. [...]
2013 - 5 p.
- Published in : J. Phys. : Conf. Ser. 443 (2013) 012006
Fulltext: PDF;
In : 16th International Conference on Positron Annihilation, Bristol, UK, 19 - 24 Aug 2012, pp.012006
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2023-06-08
12:43 |
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2023-06-08
06:39 |
High-Field Design Concept for Second Interaction Region of the Electron-Ion Collider
/ Gamage, Bamunuvita (Jefferson Lab) ; Arbelaez, Diego (LBNL, Berkeley) ; Aschenauer, Elke (Brookhaven) ; Berg, J (Brookhaven) ; Ent, Rolf (Jefferson Lab) ; Ferracin, Paolo (LBNL, Berkeley) ; Morozov, Vasiliy (ORNL, Oak Ridge (main)) ; Rajput-Ghoshal, Renuka (Jefferson Lab) ; Sabbi, GianLuca (LBNL, Berkeley) ; Satogata, Todd (Jefferson Lab) et al.
Efficient realization of the scientific potential of the Electron Ion Collider (EIC) calls for addition of a future second Interaction Region (2nd IR) and a detector in the RHIC IR8 region after the EIC project completion. The second IR and detector are needed to independently cross-check the results of the first detector, and to provide measurements with complementary acceptance. [...]
FERMILAB-CONF-22-989-TD.-
2022 - 3 p.
- Published in : JACoW NAPAC 2022 (2022) WEPA15
Fulltext: Publication - PDF; FERMILAB-CONF-22-989-TD - PDF; External links: JLAB Document Server; Fermilab Library Server
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.WEPA15
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2023-06-08
06:39 |
Realistic CAD-Based Geometries for Arbitrary Magnets with Beam Delivery Simulation (BDSIM)
/ Ramoisiaux, Eliott (U. Brussels (main)) ; Boogert, Stewart (Royal Holloway, U. of London) ; Dantinne, Rosalie (U. Brussels (main)) ; Gnacadja, Eustache (U. Brussels (main)) ; Hernalsteens, Cédric (CERN ; U. Brussels (main)) ; Musibau, Solomon (U. Brussels (main)) ; Ndihokubwayo, Bill (U. Brussels (main)) ; Nevay, Laurence (Royal Holloway, U. of London) ; Pauly, Nicolas (U. Brussels (main)) ; Shields, William (U. Brussels (main)) et al.
Monte Carlo simulations are required to evaluate beam losses and secondary radiation accurately in particle accelerators and beamlines. Detailed CAD geometries are critical to account for a realistic distribution of material masses but increase the model complexity and often lead to code duplication. [...]
2022 - 4 p.
- Published in : JACoW NAPAC 2022 (2022) MOPA01
Fulltext: PDF;
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.MOPA01
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2023-06-08
06:39 |
The Electron-Positron Future Circular Collider (FCC-ee)
/ Zimmermann, Frank (CERN) ; Benedikt, Michael (CERN) ; Oide, Katsunobu (Geneva U. ; KEK, Tsukuba) ; Raubenheimer, Tor (SLAC)
The Future Circular electron-positron Collider (FCC-ee) is aimed at studying the Z and W bosons, the Higgs, and top quark with extremely high luminosity and good energy efficiency. Responding to a request from the 2020 Update of the European Strategy for Particle Physics, in 2021 the CERN Council has launched the FCC Feasibility Study to examine the detailed implementation of such a collider. [...]
2022 - 6 p.
- Published in : JACoW NAPAC 2022 (2022) 315-320
Fulltext: PDF;
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.315-320
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2023-06-08
06:39 |
Activation of the IBA Proteus One Proton Therapy Beamline Using BDSIM and FISPACT-II
/ Ramoisiaux, Eliott (U. Brussels (main)) ; Gnacadja, Eustache (U. Brussels (main)) ; Hernalsteens, Cédric (U. Brussels (main) ; CERN) ; Pauly, Nicolas (U. Brussels (main)) ; Tesse, Robin (U. Brussels (main)) ; Vanwelde, Marion (U. Brussels (main))
Cyclotron-based proton therapy systems generate large fluxes of secondary particles due to the beam interactions with the beamline elements, with the energy degrader being the dominant source. Compact systems exacerbate these challenges for concrete shielding and beamline element activation. [...]
2022 - 4 p.
- Published in : JACoW NAPAC 2022 (2022) MOPA02
Fulltext: PDF;
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.MOPA02
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2023-06-07
06:30 |
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2023-06-07
06:30 |
An innovative Superconducting Recoil Separator for HIE-ISOLDE
/ Martel, I (Huelva U.) ; Acosta, L (Mexico U.) ; Aguado, J L (Huelva U.) ; Assie, M (IJCLab, Orsay) ; Al-Aqeel, M A M (Liverpool U. ; Bucharest, IFIN-HH) ; Ballarino, A (CERN) ; Barna, D (Wigner RCP, Budapest) ; Berjillos, R (Huelva U.) ; Bonora, M (CERN) ; Bontoiu, C (Liverpool U.) et al.
The ISOLDE Scientific Infrastructure at CERN offers a unique range of post-accelerated radioactive beams. The scientific program can be improved with the “Isolde Superconducting Recoil Separator” (ISRS), an innovative spectrometer able to deliver unprecedented (A, Z) resolution. [...]
2023 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 541 (2023) 176-179
Fulltext: PDF;
In : 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022, pp.176-179
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2023-06-07
06:30 |
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