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1.
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Search for polarized antiproton production
/ Grzonka, D (Julich, Forschungszentrum) ; Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The production of antiprotons is studied in view of possible polarization effects as basis for a polarized antiproton beam. If antiprotons are produced with some polarization, a quite simple procedure for the generation of a polarized antiproton beam could be worked out. [...]
2019 - 8 p.
- Published in : Hyperfine Interact. 240 (2019) 22
In : 13th International Conference on Low Energy Antiproton Physics, Paris, France, 12 - 16 Mar 2018, pp.22
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2.
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Drift chamber calibration and particle identification in the P-349 experiment
/ Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The goal of the P-349 experiment is to test whether 3.5 GeV/c antiprotons produced in high-energy proton-proton collisions are polarized in view of the preparation of a polarized antiproton beam. In this article, we present the details of the ongoing analysis focused on the drift chambers calibration and particle identification with DIRC..
2019 - 4 p.
- Published in : EPJ Web Conf. 199 (2019) 05017
Fulltext: PDF;
In : 15th International Workshop on Meson Physics, Kraków, Poland, 7 - 12 Jun 2018, pp.05017
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3.
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Polarization analysis of $\bar{\rho}$ produced in pA collisions
/ Grzonka, D (Julich, Forschungszentrum) ; Alfs, D (Julich, Forschungszentrum ; Jagiellonian U.) ; Asaturyan, A (NAS Armenia, Yerevan) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Hauenstein, F (Old Dominion U.) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
A quite simple procedure for the generation of a polarized antiproton beam could be worked out if antiprotons are produced with some polarization. In order to investigate this possibility measurements of the polarization of produced antiprotons have been started at a CERN/PS test beam. [...]
2019 - 4 p.
- Published in : EPJ Web Conf. 199 (2019) 05013
Fulltext: PDF;
In : 15th International Workshop on Meson Physics, Kraków, Poland, 7 - 12 Jun 2018, pp.05013
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4.
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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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5.
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Drift Chamber Calibration and Track Reconstruction in the P349 Antiproton Polarization Experiment
/ Alfs, D (Jagiellonian U.) ; Głowacz, B (Jagiellonian U.) ; Moskal, P (Jagiellonian U.) ; Zieliński, M (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Julich, Forschungszentrum) ; Kilian, K (Julich, Forschungszentrum) ; Lersch, D (Julich, Forschungszentrum) ; Ritman, J (Julich, Forschungszentrum) ; Sefzick, T (Julich, Forschungszentrum) et al.
The goal of the P349 experiment is to test whether the antiproton production process can be itself a source of antiproton polarization. In this article, we present the motivation and details of the performed measurement. [...]
2017 - 6 p.
- Published in : Acta Phys. Pol. B 48 (2017) 1983-1988
Fulltext: PDF;
In : 2nd Jagiellonian Symposium of Fundamental and Applied Subatomic Physics, Krakow, June 4-9, 2017, pp.1983-1988
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6.
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7.
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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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8.
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Status of the analysis for the search of polarization in the antiproton production process
/ Alfs, D (Jagiellonian U.) ; Asaturyan, A (Yerevan Phys. Inst.) ; Carmignotto, M (Catholic U.) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Eyrich, W (Erlangen - Nuremberg U.) ; Głowacz, B (Jagiellonian U.) ; Grzonka, D (Julich, Forschungszentrum) ; Hauenstein, F (Julich, Forschungszentrum) ; Horn, T (Catholic U.) ; Kilian, K (Julich, Forschungszentrum) et al.
The P-349 experiment aims to test whether for antiprotons the production process itself can be a source of polarization in view of the preparation of a polarized antiproton beam. In this article we present the details of performed measurements and report on the status of the ongoing analysis..
2016 - 3 p.
- Published in : EPJ Web Conf. 130 (2016) 07002
Fulltext: PDF;
In : 14th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2 - 7 Jun 2016, pp.07002
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9.
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Electron-cooled accumulation of $4 × 10^9$ positrons for production and storage of antihydrogen atoms
/ Fitzakerley, DW (York U., Canada) ; George, M C (York U., Canada) ; Hessels, E A (York U., Canada) ; Skinner, T D G (York U., Canada) ; Storry, C H (York U., Canada) ; Weel, M (York U., Canada) ; Gabrielse, G (Harvard U., Phys. Dept.) ; Hamley, C D (Harvard U., Phys. Dept.) ; Jones, N (Harvard U., Phys. Dept.) ; Marable, K (Harvard U., Phys. Dept.) et al.
/ATRAP
Four billion positrons (e+) are accumulated in a Penning–Ioffe trap apparatus at 1.2 K and <6 × 10−17 Torr. This is the largest number of positrons ever held in a Penning trap. [...]
2016 - 6 p.
- Published in : J. Phys. B 49 (2016) 064001
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10.
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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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