CERN Accelerating science

CERN Document Server 57 record trovati  1 - 10successivofine  salta al record: La ricerca ha impiegato 0.57 secondi. 
1.
TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments / Volponi, M. (CERN ; Trento U. ; INFN, Trento) ; Zielinski, J. (Warsaw U. of Tech.) ; Rauschendorfer, T. (CERN ; Leipzig U.) ; Huck, S. (CERN ; Hamburg U.) ; Caravita, R. (Trento U. ; INFN, Trento) ; Auzins, M. (CERN ; Latvia U.) ; Bergmann, B. (Prague, Tech. U.) ; Burian, P. (Prague, Tech. U.) ; Brusa, R.S. (Trento U. ; INFN, Trento) ; Camper, A. (Oslo U.) et al.
Modern physics experiments are frequently very complex, relying on multiple simultaneous events to happen in order to obtain the desired result. The experiment control system plays a central role in orchestrating the measurement setup: However, its development is often treated as secondary with respect to the hardware, its importance becoming evident only during the operational phase. [...]
arXiv:2409.01058.- 2024-08-01 - 22 p. - Published in : Rev. Sci. Instrum. 95 (2024) 085116 Fulltext: 2409.01058 - PDF; Publication - PDF;
2.
Positronium Laser Cooling via the <math display="inline"><mrow><msup><mrow><mn>1</mn></mrow><mrow><mn>3</mn></mrow></msup><mi>S</mi><mtext>-</mtext><msup><mrow><mn>2</mn></mrow><mrow><mn>3</mn></mrow></msup><mi>P</mi></mrow></math> Transition with a Broadband Laser Pulse / AEḡIS Collaboration
We report on laser cooling of a large fraction of positronium (Ps) in free-flight by strongly saturating the 13S-23P transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced in a magnetic and electric field-free environment. [...]
arXiv:2310.08760.- 2024-02-22 - 7 p. - Published in : Phys. Rev. Lett. 132 (2024) 083402 Fulltext: 2310.08760 - PDF; Publication - PDF; External links: Physics Synopsis; Interactions.org article
3.
Low-Energy Negative Ion Injection Beamline for Experiments with Antiprotonic Atoms at AEgIS / Rodin, Volodymyr (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Cerchiari, Giovanni (Innsbruck U.) ; Doser, Michael (CERN) ; Farricker, Aaron (U. Liverpool (main)) ; Khatri, Ghanshyambhai (CERN) ; Kornakov, Georgy (Warsaw U. of Tech. (main)) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.)
Interaction of low-energy antiprotons with nuclear targets provided fundamental knowledge about proton and neutron densities of many nuclei through the capture process, cascade on lower electron orbits, and annihilation with the nucleon. The expelled electrons produce X-rays and with the recoil particles after annihilation, thus, a sufficient amount of information can be obtained about this interaction. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 2126-2129 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2126-2129
4.
AEg¯IS latest results / Guatieri, F (TIFPA-INFN, Trento ; Trento U.) ; Aghion, S (Milan, Polytech. ; Bern U., LHEP) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Angela, G (Bern U., LHEP) ; Bonomi, G (Norwegian U. Sci. Tech. ; INFN, Pavia ; Pavia U.) ; Brusa, R S (TIFPA-INFN, Trento ; Trento U.) ; Caccia, M (U. Brussels (main) ; Milan U. ; INFN, Brescia) ; Caravita, R (Genoa U. ; INFN, Genoa) ; Castelli, F (U. Brussels (main) ; Milan U.) ; Cerchiari, G (Heidelberg, Max Planck Inst.) et al.
The validity of the Weak Equivalence Principle (WEP) as predicted by General Relativity has been tested up to astounding precision using ordinary matter. The lack hitherto of a stable source of a probe being at the same time electrically neutral, cold and stable enough to be measured has prevented highaccuracy testing of the WEP on anti-matter. [...]
2018 - 7 p. - Published in : EPJ Web Conf. 181 (2018) 01037 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics (EXA 2017), Vienna, Austria, 11 - 15 Sep 2017, pp.01037
5.
Positronium Rydberg excitation diagnostic in a 1T cryogenic environment / Caravita, R (CERN) ; Mariazzi, S (Trento U. ; INFN, Trento) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Antonello, M (INFN, Milan ; Insubria U., Como) ; Belov, A (Mainz U., Inst. Phys. ; Moscow, INR) ; Bonomi, G (Brescia U. ; INFN, Brescia ; INFN, Pavia) ; Brusa, R S (Trento U. ; INFN, Trento) ; Caccia, M (INFN, Milan ; Insubria U., Como) ; Camper, A (CERN) et al.
Forming a pulsed beam of cold antihydrogen using charge-exchange with Rydberg positronium (Ps) is the goal of the AEḡIS collaboration, which aims to a first gravity measurement on neutral antimatter. Recently achieved results in Ps formation and laser spectroscopy in the main AEḡIS apparatus are summarized. [...]
2019 - 6 p. - Published in : AIP Conf. Proc. 2182 (2019) 030002
In : 18th International Conference on Positron Annihilation (ICPA-18): Positron Annihilation Spectroscopy-Fundamentals, Techniques ad Applications, Orlando, United States, 19 - 24 Feb 2018, pp.030002
6.
Synthesis of cold and trappable fully stripped highly charged ions via antiproton-induced nuclear fragmentation in traps / Kornakov, G. (Warsaw U. of Tech.) ; Cerchiari, G. (Innsbruck U.) ; Zieliński, J. (Warsaw U. of Tech.) ; Lappo, L. (Warsaw U. of Tech.) ; Sadowski, G. (CERN) ; Doser, M. (CERN)
The study of radioisotopes as well as of highly charged ions is a very active and dynamic field. In both cases, the most sensitive probes involve species trapped in Penning or Paul traps after a lengthy series of production and separation steps that limit the types and lifetimes of species that can be investigated. [...]
arXiv:2209.02596.- 2023-03-23 - 9 p. - Published in : Phys. Rev. C 107 (2023) 034314 Fulltext: 2209.02596 - PDF; Publication - PDF;
7.
Monte-Carlo simulation of positronium laser excitation and anti-hydrogen formation via charge exchange / AEgIS Collaboration
The AEgIS experiment aims at producing antihydrogen (and eventually measuring the effects of the Earth gravitational field on it) with a method based on the charge exchange reaction between antiproton and Rydberg positronium. To be precise, antiprotons are delivered by the CERN Antiproton Decelerator (AD) and are trapped in a multi-ring Penning trap, while positronium is produced by a nanoporous silica target and is excited to Rydberg states by means of a two steps laser excitation. [...]
2019 - 11 p. - Published in : Hyperfine Interact. 240 (2019) 18
In : 13th International Conference on Low Energy Antiproton Physics, Paris, France, 12 - 16 Mar 2018, pp.18
8.
Imaging a positronium cloud in a 1 Tesla / Camper, Antoine (CERN) ; Aghion, Stefano (Milan Polytechnic ; INFN, Milan) ; Amsler, Claude (Stefan Meyer Inst. Subatomare Phys.) ; Antonello, Massimiliano (INFN, Milan ; Insubria U., Como) ; Belov, Alexander (Moscow, INR) ; Bonomi, Germano (INFM, Brescia ; INFN, Pavia) ; Brusa, Roberto (Trento U. ; TIFPA-INFN, Trento) ; Caccia, Massimo (INFN, Milan ; Insubria U., Como) ; Caravita, Ruggero (CERN) ; Castelli, Fabrizio (INFN, Milan ; Milan U.) et al.
We report on recent developments in positronium work in the frame of antihydrogen production through charge exchange in the AEgIS collaboration [1]. In particular, we present a new technique based on spatially imaging a cloud of positronium by collecting the positrons emitted by photoionization. [...]
2019 - 7 p. - Published in : EPJ Web Conf. 198 (2019) 00004 Fulltext: PDF;
In : Quantum Technology International Conference 2018, Paris, France, 5 - 7 Sep 2018, pp.00004
9.
Techniques for Production and Detection of 23S Positronium / Mariazzi, S (Trento U. ; TIFPA-INFN, Trento) ; Caravita, R (CERN) ; Vespertini, A (Trento U.) ; Camper, A (CERN) ; Rienacker, B (CERN) ; Brusa, R S (Trento U. ; TIFPA-INFN, Trento) ; Antonello, M (INFN, Milan ; Insubria U., Como) ; Belov, A (Moscow, INR) ; Bonomi, G (Brescia U. ; INFN, Pavia) ; Caccia, M (INFN, Milan ; INFM, Como) et al.
In this work, we show recent measurements of 23S long-lived positronium production via spontaneous decay from the 3 3P level. The possibility to tune the velocity of the 23S positronium, excited following this scheme, is presented [...]
2020 - 5 p. - Published in : Acta Phys. Pol. A 137 (2020) 91-95 Fulltext: PDF;
In : 15th International Workshop on Slow Positron Beam Techniques and Applications, Prague, Czechia, 2-6 Sep 2019, pp.91-95
10.
The AEgIS experiment at CERN: Probing antimatter gravity / AEgIS Collaboration
The AEg¯IS experiment at CERN’s Antiproton Decelerator is set up to precisely measure the gravitational interaction between matter and antimatter. For this purpose, antihydrogen will be formed from cold antiprotons and positronium, the hydrogen-like bound state of an electron and a positron. [...]
Italian Physical Society, 2019 - 4 p. - Published in : Nuovo Cimento C 42 (2019) 123 Fulltext: PDF;
In : European Nuclear Physics Conference 2018, Bologna, Italy, 2 - 7 Sep 2018, pp.123

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