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1.
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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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2.
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The ELENA facility
/ Bartmann, Wolfgang (CERN) ; Belochitskii, Pavel (CERN) ; Breuker, Horst (CERN) ; Butin, Francois (CERN) ; Carli, Christian (CERN) ; Eriksson, Tommy (CERN) ; Oelert, Walter (Mainz U.) ; Ostojic, Ranko (CERN) ; Pasinelli, Sergio (CERN) ; Tranquille, Gerard
/ELENA ; AD
The CERN Antiproton Decelerator (AD) provides antiproton beams with a kinetic energy of 5.3 MeV to an active user community. The experiments would profit from a lower beam energy, but this extraction energy is the lowest one possible under good conditions with the given circumference of the AD. [...]
2018 - 10 p.
- Published in : Philos. Trans. R. Soc. Lond. A 376 (2018) 20170266
In : Antiproton Physics in the ELENA Era : Theo Murphy meeting, Newport Pagnell, Buckinghamshire, UK, 4 - 5 Sep 2017, pp.20170266
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3.
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Manipulation and transport of antiprotons for an efficient production of antihydrogen atoms
/ Tajima, Minori (U. Tokyo (main) ; Wako, RIKEN) ; Kuroda, Naofumi (U. Tokyo (main)) ; Dupre, Pierre (Wako, RIKEN) ; Nagata, Yugo (Wako, RIKEN ; Tokyo U. of Agric. Tech.) ; Radics, Balint (Wako, RIKEN) ; Matsudate, Takuya (U. Tokyo (main)) ; Leali, Marco (U. Brescia) ; Mascagna, Valerio (U. Brescia) ; Venturelli, Luca (U. Brescia) ; Breuker, Horst (CERN) et al.
The ASACUSA collaboration is developing methods to extract and transport antiprotons at 20 eV adiabatically for an efficient production of cold antihydrogen atoms using a direct injection scheme. We successfully observed a high production rate of antihydrogen atoms immediately after the mixing of antiprotons..
2017 - 6 p.
- Published in : JPS Conf. Proc. 18 (2017) 011008
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011008
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4.
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Antihydrogen synthesis in a double-cusp trap
/ Kuroda, Naofumi (Tokyo U., Komaba) ; Tajima, Minori (Tokyo U., Komaba ; RIKEN (main)) ; Radics, Balint (RIKEN (main)) ; Dupré, Pierre (RIKEN (main)) ; Nagata, Yugo (Tokyo U. of Agric. Tech.) ; Kaga, Chikato (ADSM, Hiroshima) ; Kanai, Yasuyuki (RIKEN (main)) ; Leali, Marco (Brescia U. ; INFN, Brescia) ; Rizzini, Evandro Lodi (Brescia U. ; INFN, Brescia) ; Mascagna, Valerio (Brescia U. ; INFN, Brescia) et al.
The ASACUSA CUSP experiment plans a high precision spectroscopy of the ground-state hyperfine splitting of antihydrogen to test CPT symmetry. To perform this, a Rabi-like antiatomic beam method has been developed with a novel double-cusp trap. [...]
2017 - 6 p.
- Published in : JPS Conf. Proc. 18 (2017) 011009
Fulltext: PDF;
In : 12th International Conference on Low Energy Antiproton Physics, Kanazawa, Japan, 6 - 11 Mar 2016, pp.011009
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5.
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ELENA - From Installation to Commissioning
/ Eriksson, Tommy (CERN) ; Bartmann, Wolfgang (CERN) ; Belochitskii, P (CERN) ; Bojtár, Lajos (CERN) ; Breuker, Horst (CERN) ; Butin, Francois (CERN) ; Carli, Christian (CERN) ; Dupuy, Bruno (CERN) ; Freyermuth, Pierre (CERN) ; Jørgensen, Lars (CERN) et al.
ELENA (Extra Low ENergy Antiproton ring) is an upgrade project at the CERN AD (Antiproton Decelerator). The smaller ELENA ring will further decelerate 5.3 MeV antiprotons from the AD ring down to 100 keV using electron cooling to obtain good deceleration efficiency and dense beams. [...]
CERN-ACC-2017-268.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPVA034
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPVA034
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6.
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7.
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8.
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The CMS trigger system
/ CMS Collaboration
This paper describes the CMS trigger system and its performance during Run 1 of the LHC. The trigger system consists of two levels designed to select events of potential physics interest from a GHz (MHz) interaction rate of proton-proton (heavy ion) collisions. [...]
arXiv:1609.02366; CMS-TRG-12-001; CERN-EP-2016-160.-
Geneva : CERN, 2017-01-24 - 122 p.
- Published in : JINST 12 (2017) P01020
Fulltext: openaccess_Khachatryan_2017_J._Inst._12_P01020 - PDF; 10.1088_1748-0221_12_01_P01020 - PDF; arXiv:1609.02366 - PDF; External links: Fermilab News article; Open Access fulltext
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9.
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ELENA: Installations and Preparations for Commissioning
/ Carli, Christian (CERN) ; Bartmann, Wolfgang (CERN) ; Belochitskii, P (CERN) ; Breuker, Horst (CERN) ; Butin, Francois (CERN) ; Eriksson, Tommy (CERN) ; Oelert, Walter (Mainz U., Inst. Phys.) ; Ostojić, Ranko (CERN) ; Pasinelli, Sergio (CERN) ; Tranquille, Gerard (CERN)
The Extra Low Energy Antiproton ring (ELENA) is a small 30 m circumference synchroton under construction at CERN to further decelerate antiprotons from the Antiproton Decelerator AD from 5.3 MeV to 100 keV. Controlled deceleration in a synchrotron equipped with an electron cooler to reduce emittances in all three planes will allow the existing AD experiments to increase substantially their antiproton capture efficiencies and render new experiments possible. [...]
CERN-ACC-2016-290.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-MOPOY009
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPOY009
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