1.
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Investigation of silicon sensors for their use as antiproton annihilation detectors
/ Pacifico, N (Bergen U.) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Ahlén, O (CERN) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) ; Brusa, R S (INFN, Padua ; Trento U. ; INFN, Trento) ; Burghart, G (CERN) ; Cabaret, L (Paris, Lab. Kastler Brossel) et al.
We present here a new application of silicon sensors aimed at the direct detection of antinucleons annihilations taking place inside the sensor׳s volume. Such detectors are interesting particularly for the measurement of antimatter properties and will be used as part of the gravity measurement module in the AEg¯IS experiment at the CERN Antiproton Decelerator. [...]
2014 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 765 (2014) 161-166
Elsevier Open Access article: PDF;
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2.
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The AEgIS Experiment
/ Knecht, A (CERN) ; Aghion, S (Milan Polytechnic) ; Ahlen, O (CERN) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) et al.
The AEgIS experiment aims at performing the first test of the Weak Equivalence Principle of General Relativity in the antimatter sector by measuring the gravitational acceleration acting on a beam of cold antihydrogen to a precision of 1%. The installation of the apparatus is making good progress and large parts were taken into operation. [...]
2014 - 11 p.
- Published in : Hyperfine Interact. 228 (2014) 121-131
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.121-131
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3.
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Development of nuclear emulsions operating in vacuum for the AEgIS experiment
/ Scampoli, P (Bern U., LHEP ; Naples U.) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Ahlen, O (CERN) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A S (Moscow, INR) ; Berggren, K (CERN) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) et al.
/AEgIS
For the first time the AEgIS (Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy) experiment will measure the Earth's local gravitational acceleration g on antimatter through the evaluation of the vertical displacement of an antihydrogen horizontal beam. This will be a model independent test of the Weak Equivalence Principle at the base of the general relativity. [...]
2014
- Published in : JINST 9 (2014) C01061
Fulltext: PDF;
In : 13th Topical Seminar on Innovative Particle and Radiation Detectors, Sienna, Italy, 7 - 10 Oct 2013, pp.C01061
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4.
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Detection of low energy antiproton annihilations in a segmented silicon detector
/ Aghion, S (Milan Polytechnic ; INFN, Milan) ; Ahlen, O (CERN) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) ; Brusa, R S (INFN, Trento ; Trento U.) ; Burghart, G (CERN) ; Cabaret, L (Paris, Lab. Kastler Brossel) ; Caccia, M (Insubria U., Como) et al.
The goal of the AEbar gIS experiment at the Antiproton Decelerator (AD) at CERN, is to measure directly the Earth's gravitational acceleration on antimatter by measuring the free fall of a pulsed, cold antihydrogen beam. The final position of the falling antihydrogen will be detected by a position sensitive detector. [...]
2014
- Published in : JINST 9 (2014) P06020
IOP Open Access article: PDF;
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5.
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Measurement of the antiproton–nucleus annihilation cross-section at low energy
/ Aghai-Khozani, H (Munich, Max Planck Inst. Quantenopt.) ; Bianconi, A (U. Brescia ; INFN, Pavia) ; Corradini, M (U. Brescia ; INFN, Pavia) ; Hayano, R (Tokyo U.) ; Hori, M (Munich, Max Planck Inst. Quantenopt. ; Tokyo U.) ; Leali, M (U. Brescia ; INFN, Pavia) ; Lodi Rizzini, E (U. Brescia ; INFN, Pavia) ; Mascagna, V (U. Brescia ; INFN, Pavia) ; Murakami, Y (Tokyo U.) ; Prest, M (INFN, Milan Bicocca ; Insubria U., Como) et al.
Systematic measurements of the annihilation cross sections of low energy antinucleons were performed at CERN in the 80's and 90's. However the antiproton data on medium-heavy and heavy nuclear targets are scarce. [...]
2018 - 13 p.
- Published in : Nucl. Phys. A 970 (2018) 366-378
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6.
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AEgIS Experiment: Status & Outlook
/ Lansonneur, P (Lyon, IPN) ; Aghion, S (Milan, Polytech. ; INFN, Milan) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Bonomi, G (U. Brescia ; INFN, Pavia) ; Brusa, R S (Trento U. ; TIFPA-INFN, Trento) ; Caccia, M (INFN, Milan ; Insubria U., Como) ; Caravita, R (Genoa U. ; INFN, Genoa) ; Castelli, F (INFN, Milan ; Milan U.) ; Cerchiari, G (Heidelberg, Max Planck Inst.) ; Comparat, D (LAC, Orsay) et al.
The AEGIS experiment 1 (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is planned to perform the first measurement of the gravitational acceleration on antimatter by observing the free fall of antihydrogen atoms. By combining techniques based on recent developments in the production of positronium and its laser excitation to Rydberg states, such a study seems indeed to be feasible for neutral antimatter. [...]
2017 - 6 p.
- Published in : , pp. 87-92
Fulltext: PDF;
In : 52nd Rencontres de Moriond on Gravitation, La Thuile, Italy, 25 Mar - 1 Apr 2017, pp.87-92
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7.
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Experiments with low-energy antimatter
/ Consolati, G (Milan Polytechnic ; INFN, Milan) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) ; Brusa, R S (INFN, Padua ; Trento U. ; INFN, Trento) et al.
Investigations on antimatter allow us to shed light on fundamental issues of contemporary physics. The only antiatom presently available, antihydrogen, is produced making use of the Antiproton Decelerator (AD) facility at CERN. [...]
2015 - 7 p.
- Published in : EPJ Web Conf. 96 (2015) 01007
EDP Sciences Open Access article: PDF;
In : Dark Matter, Hadron Physics and Fusion Physics, Messina, Italy, 24 - 26 Sep 2014, pp.01007
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8.
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AE$\bar g$IS Experiment: Measuring the acceleration $g$ of the earth's gravitational field on antihydrogen beam
/ Subieta Vasquez, M A (INFM, Brescia ; INFN, Pavia) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Ahlen, O (CERN) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) et al.
The AE [??] IS experiment [1] aims at directly measuring the gravitational acceleration g on a beam of cold antihydrogen ( [??] ) to a precision of 1%, performing the first test with antimatter of the (WEP) Weak Equivalence Principle. The experimental apparatus is sited at the Antiproton Decelerator (AD) at CERN, Geneva, Switzerland. [...]
2014 - 9 p.
- Published in : EPJ Web Conf. 71 (2014) 00128
EDP Sciences Open Access article: PDF;
In : 2nd International Conference on New Frontiers in Physics, Kolymbari, Greece, 28 Aug - 5 Sep 2013, pp.00128
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9.
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Measuring the gravitational free-fall of antihydrogen
/ Storey, J (Bern U., LHEP) ; Aghion, S (Milan Polytechnic ; INFN, Milan) ; Ahlen, O (CERN) ; Amsler, C (Bern U., LHEP) ; Ariga, A (Bern U., LHEP) ; Ariga, T (Bern U., LHEP) ; Belov, A S (Moscow, INR) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Bräunig, P (Kirchhoff Inst. Phys.) ; Bremer, J (CERN) et al.
Antihydrogen holds the promise to test, for the first time, the universality of free-fall with a system composed entirely of antiparticles. The AEgIS experiment at CERN’s antiproton decelerator aims to measure the gravitational interaction between matter and antimatter by measuring the deflection of a beam of antihydrogen in the Earths gravitational field ( $\overline {\textrm {g}}$ ). [...]
2014 - 7 p.
- Published in : Hyperfine Interact. 228 (2014) 151-157
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.151-157
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10.
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Gravity and antimatter: the AEgIS experiment at CERN
/ Pagano, D (INFM, Brescia ; INFN, Pavia) ; Aghion, S (Bergen U. ; INFN, Milan) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Bonomi, G (INFM, Brescia ; INFN, Pavia) ; Brusa, R S (Trento U. ; TIFPA-INFN, Trento) ; Caccia, M (INFN, Milan ; Insubria U., Como) ; Caravita, R (CERN) ; Castelli, F (INFN, Milan ; Milan U.) ; Cerchiari, G (Heidelberg, Max Planck Inst.) ; Comparat, D (LAC, Orsay) et al.
From the experimental point of view, very little is known about the gravitational interaction between matter and antimatter. In particular, the Weak Equivalence Principle, which is of paramount importance for the General Relativity, has not yet been directly probed with antimatter. [...]
2020 - 5 p.
- Published in : J. Phys.: Conf. Ser. 1342 (2020) 012016
Fulltext: PDF;
In : 15th International Conference on Topics in Astroparticle and Underground Physics, Sudbury, Ontario, Canada, 24 - 28 July 2017, pp.012016
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