Search

Your search keyword '"Guatieri, F"' showing total 115 results
Start Over Author "Guatieri, F"
115 results on '"Guatieri, F"'

1. TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments

Author

Volponi, M., Zieliński, J., Rauschendorfer, T., Huck, S., Caravita, R., Auzins, M., Bergmann, B., Burian, P., Brusa, R. S., Camper, A., Castelli, F., Cerchiari, G., Ciuryło, R., Consolati, G., Doser, M., Eliaszuk, K., Giszczak, A., Glöggler, L. T., Graczykowski, Ł., Grosbart, M., Guatieri, F., Gusakova, N., Gustafsson, F., Haider, S., Janik, M. A., Januszek, T., Kasprowicz, G., Khatri, G., Kłosowski, Ł., Kornakov, G., Krumins, V., Lappo, L., Linek, A., Malamant, J., Mariazzi, S., Penasa, L., Petracek, V., Piwiński, M., Pospisil, S., Povolo, L., Prelz, F., Rangwala, S. A., Rawat, B. S., Rienäcker, B., Rodin, V., Røhne, O. M., Sandaker, H., Smolyanskiy, P., Sowiński, T., Tefelski, D., Vafeiadis, T., Welsch, C. P., Wolz, T., Zawada, M., and Zurlo, N.

Subjects
Physics - Instrumentation and Detectors, Physics - Atomic Physics
Abstract

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. Therefore, the AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) collaboration has created a framework for easily coding control systems, specifically targeting atomic, quantum, and antimatter experiments. This framework, called Total Automation of LabVIEW Operations for Science (TALOS), unifies all the machines of the experiment in a single entity, thus enabling complex high-level decisions to be taken, and it is constituted by separate modules, called MicroServices, that run concurrently and asynchronously. This enhances the stability and reproducibility of the system while allowing for continuous integration and testing while the control system is running. The system demonstrated high stability and reproducibility, running completely unsupervised during the night and weekends of the data-taking campaigns. The results demonstrate the suitability of TALOS to manage an entire physics experiment in full autonomy: being open-source, experiments other than the AEgIS experiment can benefit from it.

Published
2024
Full Text
View/download PDF

2. Real-time antiproton annihilation vertexing with sub-micron resolution

Author

Berghold, M., Orsucci, D., Guatieri, F., Alfaro, S., Auzins, M., Bergmann, B., Burian, P., Brusa, R. S., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Ciuryło, R., Chehaimi, A., Consolati, G., Doser, M., Eliaszuk, K., Ferguson, R., Germann, M., Giszczak, A., Glöggler, L. T., Graczykowski, Ł., Grosbart, M., Gusakova, N., Gustafsson, F., Haider, S., Huck, S., Hugenschmidt, C., Janik, M. A., Januszek, T., Kasprowicz, G., Kempny, K., Khatri, G., Kłosowski, Ł., Kornakov, G., Krumins, V., Lappo, L., Linek, A., Mariazzi, S., Moskal, P., Nowicka, D., Pandey, P., Pęcak, D., Penasa, L., Petracek, V., Piwiński, M., Pospisil, S., Povolo, L., Prelz, F., Rangwala, S. A., Rauschendorfer, T., Rawat, B. S., Rienäcker, B., Rodin, V., Røhne, O. M., Sandaker, H., Sharma, S., Smolyanskiy, P., Sowiński, T., Tefelski, D., Vafeiadis, T., Volponi, M., Welsch, C. P., Zawada, M., Zielinski, J., and Zurlo, N.

Subjects
Physics - Instrumentation and Detectors
Abstract

The primary goal of the AEgIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, a cold ~50K antihydrogen beam has to pass through two grids forming a moir\'e deflectometer before annihilating onto a position-sensitive detector, which shall determine the vertical position of the annihilation vertex relative to the grids with micrometric accuracy. Here we introduce a vertexing detector based on a modified mobile camera sensor and experimentally demonstrate that it can measure the position of antiproton annihilations with an accuracy of $0.62^{+0.40}_{-0.22}\mu m$, which represents a 35-fold improvement over the previous state-of-the-art for real-time antiproton vertexing. Importantly, these antiproton detection methods are directly applicable to antihydrogen. Moreover, the sensitivity to light of the sensor enables the in-situ calibration of the moir\'e deflectometer, significantly reducing systematic errors. This sensor emerges as a breakthrough technology for achieving the \aegis scientific goals and has been selected as the basis for the development of a large-area detector for conducting antihydrogen gravity measurements., Comment: 21 pages, 4 figures, 2 tables

Published
2024

3. Positronium laser cooling via the $1^3S$-$2^3P$ transition with a broadband laser pulse

Author

Glöggler, L. T., Gusakova, N., Rienäcker, B., Camper, A., Caravita, R., Huck, S., Volponi, M., Wolz, T., Penasa, L., Krumins, V., Gustafsson, F., Auzins, M., Bergmann, B., Burian, P., Brusa, R. S., Castelli, F., Ciuryło, R., Comparat, D., Consolati, G., Doser, M., Graczykowski, Ł., Grosbart, M., Guatieri, F., Haider, S., Janik, M. A., Kasprowicz, G., Khatri, G., Kłosowski, Ł., Kornakov, G., Lappo, L., Linek, A., Malamant, J., Mariazzi, S., Petracek, V., Piwiński, M., Pospisil, S., Povolo, L., Prelz, F., Rangwala, S. A., Rauschendorfer, T., Rawat, B. S., Rodin, V., Røhne, O. M., Sandaker, H., Smolyanskiy, P., Sowiński, T., Tefelski, D., Vafeiadis, T., Welsch, C. P., Zawada, M., Zielinski, J., and Zurlo, N.

Subjects
Physics - Atomic Physics, High Energy Physics - Experiment
Abstract

We report on laser cooling of a large fraction of positronium (Ps) in free-flight by strongly saturating the $1^3S$-$2^3P$ 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. We observe two different laser-induced effects. The first effect is an increase in the number of atoms in the ground state after the time Ps has spent in the long-lived $3^3P$ states. The second effect is the one-dimensional Doppler cooling of Ps, reducing the cloud's temperature from 380(20) K to 170(20) K. We demonstrate a 58(9) % increase in the coldest fraction of the Ps ensemble., Comment: 6 pages, 5 figures

Published
2023

4. CIRCUS: an autonomous control system for antimatter, atomic and quantum physics experiments

Author

Volponi, M., Huck, S., Caravita, R., Zielinski, J., Kornakov, G., Kasprowicz, G., Nowicka, D., Rauschendorfer, T., Rienäcker, B., Prelz, F., Auzins, M., Bergmann, B., Burian, P., Brusa, R. S., Camper, A., Castelli, F., Ciuryło, R., Consolati, G., Doser, M., Glöggler, L. T., Graczykowski, Ł., Grosbart, M., Guatieri, F., Gusakova, N., Gustafsson, F., Haider, S., Janik, M., Khatri, G., Kłosowski, Ł., Krumins, V., Lappo, L., Linek, A., Malamant, J., Mariazzi, S., Penasa, L., Petracek, V., Piwiński, M., Pospisil, S., Povolo, L., Rangwala, S., Rawat, B. S., Rodin, V., Røhne, O. M., Sandaker, H., Smolyanskiy, P., Sowiński, T., Tefelski, D., Vafeiadis, T., Welsch, C. P., Wolz, T., Zawada, M., and Zurlo, N.

Published
2024
Full Text
View/download PDF

5. A cryogenic tracking detector for antihydrogen detection in the AEgIS experiment

Author

Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ekman, P. A., Fani, M., Ferragut, R., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, D., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Malbrunot, C., Mariazzi, S., Matveev, V., Muller, S. R., Nebbia, G., Nedelec, P., Nowak, L., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Storey, J., Testera, G., Tietje, I. C., Toso, V., Wolz, T., Wuethrich, J., Yzombard, P., Zimmer, C., and Zurlo, N.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Physics - Atomic Physics
Abstract

We present the commissioning of the Fast Annihilation Cryogenic Tracker detector (FACT), installed around the antihydrogen production trap inside the 1 T superconducting magnet of the AE\=gIS experiment. FACT is designed to detect pions originating from the annihilation of antiprotons. Its 794 scintillating fibers operate at 4 K and are read out by silicon photomultipliers (MPPCs) at near room temperature. FACT provides the antiproton/antihydrogen annihilation position information with a few ns timing resolution. We present the hardware and software developments which led to the successful operation of the detector for antihydrogen detection and the results of an antiproton-loss based efficiency assessment. The main background to the antihydrogen signal is that of the positrons impinging onto the positronium conversion target and creating a large amount of gamma rays which produce a sizeable signal in the MPPCs shortly before the antihydrogen signal is expected. We detail the characterization of this background signal and its impact on the antihydrogen detection efficiency.

Published
2022
Full Text
View/download PDF

6. Rydberg-positronium velocity and self-ionization studies in 1T magnetic field and cryogenic environment

Author

Antonello, M., Belov, A., Brusa, G. Bonomi R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Comparat, D., Consolati, G., Di Noto, L., Doser, M., Fani, M., Ferragut, R., Fesel, J., Gerber, S., Gligorova, A., Glöggler, L. T., Guatieri, F., Haider, S., Hinterberger, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S. R., Nebbia, G., Nedelec, P., Nowak, L., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Rienäcker, B., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Testera, G., Tietje, I. C., Wolz, T., Zimmer, C., and Zurlo, N.

Subjects
Physics - Atomic Physics
Abstract

We characterized the pulsed Rydberg-positronium production inside the AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) apparatus in view of antihydrogen formation by means of a charge exchange reaction between cold antiprotons and slow Rydberg-positronium atoms. Velocity measurements on positronium along two axes in a cryogenic environment (10K) and in 1T magnetic field were performed. The velocimetry was done by MCP-imaging of photoionized positronium previously excited to the $n=3$ state. One direction of velocity was measured via Doppler-scan of this $n=3$-line, another direction perpendicular to the former by delaying the exciting laser pulses in a time-of-flight measurement. Self-ionization in the magnetic field due to motional Stark effect was also quantified by using the same MCP-imaging technique for Rydberg positronium with an effective principal quantum number $n_{eff}$ ranging between 14 and 22. We conclude with a discussion about the optimization of our experimental parameters for creating Rydberg-positronium in preparation for an efficient pulsed production of antihydrogen.

Published
2019
Full Text
View/download PDF

7. Efficient $2^3S$ positronium production by stimulated decay from the $3^3P$ level

Author

Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Testera, G., Tietje, I. C., Widmann, E., Wolz, T., Yzombard, P., Zimmer, C., and Zurlo, N.

Subjects
Physics - Atomic Physics, High Energy Physics - Experiment
Abstract

We investigate experimentally the possibility of enhancing the production of $2^3S$ positronium atoms by driving the $1^3S$-$3^3P$ and $3^3P$-$2^3S$ transitions, overcoming the natural branching ratio limitation of spontaneous decay from $3^3P$ to $2^3S$. The decay of $3^3P$ positronium atoms towards the $2^3S$ level has been effciently stimulated by a 1312.2nm broadband IR laser pulse. The dependence of the stimulating transition efficiency on the intensity of the IR pulse has been measured to find the optimal enhancement conditions. A maximum relative increase of $ \times (3.1 \pm 1.0) $ in the $2^3S$ production efficiency, with respect to the case where only spontaneous decay is present, was obtained., Comment: 6 pages, 4 figures

Published
2019
Full Text
View/download PDF

8. Velocity selected production of $2^3S$ metastable positronium

Author

Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., and Zurlo, N.

Subjects
Physics - Atomic Physics
Abstract

Positronium in the $2^3S$ metastable state exhibits a low electrical polarizability and a long lifetime (1140 ns) making it a promising candidate for interferometry experiments with a neutral matter-antimatter system. In the present work, $2^3S$ positronium is produced - in absence of electric field - via spontaneous radiative decay from the $3^3P$ level populated with a 205nm UV laser pulse. Thanks to the short temporal length of the pulse, 1.5 ns full-width at half maximum, different velocity populations of a positronium cloud emitted from a nanochannelled positron/positronium converter were selected by delaying the excitation pulse with respect to the production instant. $ 2^3S $ positronium atoms with velocity tuned between $ 7 \cdot 10^4 $ m/s and $ 10 \cdot 10^4 $ m/s were thus produced. Depending on the selected velocity, a $2^3S$ production effciency ranging from $\sim 0.8 \%$ to $\sim 1.7%$, with respect to the total amount of emitted positronium, was obtained. The observed results give a branching ratio for the $3^3P$-$2^3S$ spontaneous decay of $(9.7 \pm 2.7) \% $. The present velocity selection technique could allow to produce an almost monochromatic beam of $\sim 1 \cdot 10^3 $ $2^3S$ atoms with a velocity spread $ < 10^4 $ m/s and an angular divergence of $\sim$ 50 mrad., Comment: 6 pages, 3 figures, 1 table

Published
2018
Full Text
View/download PDF

9. Producing long-lived $2^3\text{S}$ Ps via $3^3\text{P}$ laser excitation in magnetic and electric fields

Author

Aghion, S., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fani, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagormarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandacker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Vujanovic, M., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., and Zurlo, N.

Subjects
Physics - Atomic Physics
Abstract

Producing positronium (Ps) in the metastable $2^3\text{S}$ state is of interest for various applications in fundamental physics. We report here about an experiment in which Ps atoms are produced in this long-lived state by spontaneous radiative decay of Ps excited to the $3^3\text{P}$ level manifold. The Ps cloud excitation is obtained with a UV laser pulse in an experimental vacuum chamber in presence of guiding magnetic field of 25 mT and an average electric field of 300 V/cm. The indication of the $2^3\text{S}$ state production is obtained from a novel analysis technique of single-shot positronium annihilation lifetime spectra. Its production efficiency relative to the total amount of formed Ps is evaluated by fitting a simple rate equations model to the experimental data and found to be $ (2.1 \pm 1.3) \, \% $.

Published
2018
Full Text
View/download PDF

11. Measurement of antiproton annihilation on Cu, Ag and Au with emulsion films

Author

Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Braunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Huse, T., Kawada, J., Kellerbauer, A., Kimura, M., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Rohne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Vamosi, S., Vladymyrov, M., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., and Zurlo, N.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The characteristics of low energy antiproton annihilations on nuclei (e.g. hadronization and product multiplicities) are not well known, and Monte Carlo simulation packages that use different models provide different descriptions of the annihilation events. In this study, we measured the particle multiplicities resulting from antiproton annihilations on nuclei. The results were compared with predictions obtained using different models in the simulation tools GEANT4 and FLUKA. For this study, we exposed thin targets (Cu, Ag and Au) to a very low energy antiproton beam from CERN's Antiproton Decelerator, exploiting the secondary beamline available in the AEgIS experimental zone. The antiproton annihilation products were detected using emulsion films developed at the Laboratory of High Energy Physics in Bern, where they were analysed at the automatic microscope facility. The fragment multiplicity measured in this study is in good agreement with results obtained with FLUKA simulations for both minimally and heavily ionizing particles.

Published
2017
Full Text
View/download PDF

12. A cryogenic tracking detector for antihydrogen detection in the [formula omitted] experiment

Author

Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R.S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ekman, P.A., Fanì, M., Ferragut, R., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, D., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S.R., Nebbia, G., Nedelec, P., Nowak, L., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O.M., Rotondi, A., Sandaker, H., Santoro, R., Storey, J., Testera, G., Tietje, I.C., Toso, V., Wolz, T., Wuethrich, J., Yzombard, P., Zimmer, C., and Zurlo, N.

Published
2020
Full Text
View/download PDF

13. Pulsed Production of Antihydrogen in AEgIS

Author

Zurlo N., Auzins M., Bergmann B., Bonomi G., Brusa R.S., Burian P., Camper A., Castelli F., Ciury R., Consolati G., Doser M., Farricker A., Glöggler L., Graczykowski Ł., Grosbart M., Guatieri F., Gusakova N., Haider S., Huck S., Janik M., Kasprowicz G., Khatri G., Kłosowski Ł., Kornakov G., Krumins V., Lappo L., Linek A., Malamant J., Malbrunot C., Mariazzi S., Nowak L., Nowicka D., Oswald E., Pagano D., Penasa L., Piwiński M., Pospisil S., Povolo L., Prelz F., Rangwala S., Rienäcker B., Røhne O.M., Rotondi A., Sandaker H., Smolyanskiy P., Sowiński T., Tefelski D., Testera G., Volponi M., Welsch C.P., Wolz T., Zawada M., and Zielinski J.

Subjects
Physics, QC1-999
Abstract

Low-temperature antihydrogen atoms are an effective tool to probe the validity of the fundamental laws of Physics, for example the Weak Equivalence Principle (WEP) for antimatter, and -generally speaking- it is obvious that colder atoms will increase the level of precision. After the first production of cold antihydrogen in 2002 [1], experimental efforts have substantially progressed, with really competitive results already reached by adapting to cold antiatoms some well-known techniques pre- viously developed for ordinary atoms. Unfortunately, the number of antihydrogen atoms that can be produced in dedicated experiments is many orders of magnitude smaller than of hydrogen atoms, so the development of novel techniques to enhance the production of antihydrogen with well defined (and possibly controlled) conditions is essential to improve the sensitivity. We present here some experimental results achieved by the AEgIS Collaboration, based at the CERN AD (Antiproton Decelerator) on the production of antihydrogen in a pulsed mode where the production time of 90% of atoms is known with an uncertainty of ~ 250 ns [2]. The pulsed antihydrogen source is generated by the charge-exchange reaction between Rydberg positronium (Ps*) and an antiproton (p¯): p¯ + Ps* → H¯* + e−, where Ps* is produced via the implantation of a pulsed positron beam into a mesoporous silica target, and excited by two consecutive laser pulses, and antiprotons are trapped, cooled and manipulated in Penning-Malmberg traps. The pulsed production (which is a major milestone for AEgIS) makes it possible to select the antihydrogen axial temperature and opens the door for the tuning of the antihydrogen Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. In this paper, we present the results achieved by AEgIS in 2018, just before the Long Shutdown 2 (LS2), as well as some of the ongoing improvements to the system, aimed at exploiting the lower energy antiproton beam from ELENA [3].

Published
2023
Full Text
View/download PDF

14. AEgIS at ELENA: outlook for physics with a pulsed cold antihydrogen beam

Author

Doser, M., Aghion, S., Amsler, C., Bonomi, G., Brusa, R. S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Evans, C., Fanì, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., and Zurlo, N.

Published
2018

15. Characterization of a transmission positron/positronium converter for antihydrogen production

Author

Aghion, S., Amsler, C., Ariga, T., Bonomi, G., Brusa, R.S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Müller, S.R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Povolo, L., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Rienäcker, B., Robert, J., Røhne, O.M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Smestad, L., Sorrentino, F., Testera, G., Tietje, I.C., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., Zurlo, N., Andersen, S.L., Chevallier, J., Uggerhøj, U.I., and Lyckegaard, F.

Published
2017
Full Text
View/download PDF

16. Direct detection of antiprotons with the Timepix3 in a new electrostatic selection beamline

Author

Pacifico, N., Aghion, S., Alozy, J., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R.S., Cabaret, L., Caccia, M., Campbell, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jordan, E., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lawler, G., Lebrun, P., Llopart, X., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Røhne, O.M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Spacek, M., Storey, J., Strojek, I.M., Testera, G., Tietje, I., Tlustos, L., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., and Zurlo, N.

Published
2016
Full Text
View/download PDF

17. Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum

Author

Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A.S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R.S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Evans, C., Fesel, J., Fontana, A., Forslund, O.K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I.L., Jordan, E., Kaltenbacher, T., Kellerbauer, A., Kimura, M., Koetting, T., Krasnicky, D., Lagomarsino, V., Lebrun, P., Lansonneur, P., Lehner, S., Liberadzka, J., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienäcker, B., Røhne, O.M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Sorrentino, F., Spacek, M., Storey, J., Strojek, I.M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, S., and Zmeskal, J.

Published
2015
Full Text
View/download PDF

18. Development of a detector for inertial sensing of positronium at AEḡIS (CERN)

Author

Glöggler, L. T., primary, Caravita, R., additional, Bergmann, B., additional, Bonomi, G., additional, Brusa, R. S., additional, Burian, P., additional, Camper, A., additional, Castelli, F., additional, Cheinet, P., additional, Comparat, D., additional, Consolati, G., additional, Doser, M., additional, Gjersdal, H., additional, Graczykowski, Ł., additional, Guatieri, F., additional, Haider, S., additional, Huck, S., additional, Janik, M., additional, Kasprowicz, G., additional, Khatri, G., additional, Kornakov, G., additional, Malbrunot, C., additional, Mariazzi, S., additional, Nebbia, G., additional, Nowak, L., additional, Nowicka, D., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Pospisil, S., additional, Povolo, L., additional, Prelz, F., additional, Rienäcker, B., additional, Røhne, O. M., additional, Sandaker, H., additional, Stekl, I., additional, Tefelski, D., additional, Tietje, I. C., additional, Volponi, M., additional, Wolz, T., additional, Zimmer, C., additional, and Zurlo, N., additional

Published
2022
Full Text
View/download PDF

19. Control system for ion Penning traps at the AEgIS experiment at CERN

Author

Nowicka, D, primary, Bergmann, B, additional, Bonomi, G, additional, Brusa, R S, additional, Burian, P, additional, Camper, A, additional, Caravita, R, additional, Castelli, F, additional, Cheinet, P, additional, Comparat, D, additional, Consolati, G, additional, Doser, M, additional, Gjersdal, H, additional, Glöggler, L, additional, Graczykowski, Ł, additional, Guatieri, F, additional, Haider, S, additional, Huck, S, additional, Janik, M, additional, Kasprowicz, G, additional, Khatri, G, additional, Kornakov, G, additional, Malbrunot, C, additional, Mariazzi, S, additional, Nebbia, G, additional, Nowak, L, additional, Oswald, E, additional, Pagano, D, additional, Penasa, L, additional, Pospisil, S, additional, Povolo, L, additional, Prelz, F, additional, Rienäcker, B, additional, Røhne, O M, additional, Sandaker, H, additional, Stekl, I, additional, Tefelski, D, additional, Volponi, M, additional, Wolz, T, additional, Zimmer, C, additional, and Zurlo, N, additional

Published
2022
Full Text
View/download PDF

20. High-resolution MCP-TimePix3 imaging/timing detector for antimatter physics

Author

Glöggler, L, primary, Caravita, R, additional, Auzins, M, additional, Bergmann, B, additional, Brusa, R S, additional, Burian, P, additional, Camper, A, additional, Castelli, F, additional, Cheinet, P, additional, Ciuryło, R, additional, Comparat, D, additional, Consolati, G, additional, Doser, M, additional, Gjersdal, H, additional, Graczykowski, Ł, additional, Guatieri, F, additional, Haider, S, additional, Huck, S, additional, Janik, M, additional, Kasprowicz, G, additional, Khatri, G, additional, Kłosowski, Ł, additional, Kornakov, G, additional, Malbrunot, C, additional, Mariazzi, S, additional, Nowak, L, additional, Nowicka, D, additional, Oswald, E, additional, Penasa, L, additional, Piwiński, M, additional, Pospisil, S, additional, Povolo, L, additional, Prelz, F, additional, Rangwala, S A, additional, Rienäcker, B, additional, Røhne, O M, additional, Sandaker, H, additional, Sowinski, T, additional, Stekl, I, additional, Tefelski, D, additional, Volponi, M, additional, Wolz, T, additional, Zimmer, C, additional, Zawada, M, additional, and Zurlo, N, additional

Published
2022
Full Text
View/download PDF

21. Development of a detector for inertial sensing of positronium at AEgIS (CERN)

Author

Glöggler, Lisa T., Caravita, R., Bergmann, B., Bonomi, G., Brusa, R. S., Burian, P., Camper, A., Castelli, F., Cheinet, P., Comparat, D., Consolati, G., Doser, M., Gjersdal, H., Graczykowski, Ł., Guatieri, F., Haider, S., Huck, S., Janik, M., Kasprowicz, G., Khatri, G., Kornakov, G., Malbrunot, C., Mariazzi, S., Nebbia, G., Nowak, L., Nowicka, D., Oswald, E., Pagano, D., Penasa, L., Pospisil, S., Povolo, L., Prelz, F., Rienäcker, B., Røhne, O. M., Sandaker, H., Stekl, I., Tefelski, D., Tietje, I. C., Volponi, M., Wolz, T., Zimmer, C., and Zurlo, N.

Subjects
History, detector, CERN, positronium, Detectors and Experimental Techniques, 530 Physik, AEḡIS, gravitational acceleration, Computer Science Applications, Education
Abstract

The primary goal of the AEgIS collaboration at CERN is to measure the gravitational acceleration on neutral antimatter. Positronium (Ps), the bound state of an electron and a positron, is a suitable candidate for a force-sensitive inertial measurement by means of deflectometry/interferometry. In order to conduct such an experiment, the impact position and time of arrival of Ps atoms at the detector must be detected simultaneously. The detection of a low-velocity Ps beam with a spatial resolution of (88 ± 5) μm was previously demonstrated [1]. Based on the methodology employed in [1] and [2], a hybrid imaging/timing detector with increased spatial resolution of about 10 μm was developed. The performance of a prototype was tested with a positron beam. The concept of the detector and first results are presented.

Published
2022

22. Experiments with mid-heavy antiprotonic atoms in AE$\overline{g}$IS

Author

Kornakov, G, Auzins, M, Bergmann, B, Burian, P, Bonomi, G, Brusa, R S, Camper, A, Caravita, R, Castelli, F, Cheinet, P, Ciuryło, R, Comparat, D, Consolati, G, Doser, M, Gjersdal, H, Glöggler, L T, Graczykowsk, Ł, Guatieri, F, Haider, S, Huck, S, Janik, M, Kasprowicz, G, Khatri, G, Kłosowski, Ł, Lappo, L, Malbrunot, C, Mariazzi, S, Nebbia, G, Nowak, L, Nowicka, D, Oswald, E, Pagano, D, Penasa, L, Petracek, V, Piwiński, M, Pospisil, S, Povolo, L, Prelz, F, Rangwala, S, Rienäcker, B, Rotondi, A, Røhne, O M, Sandaker, H, Stekl, I, Tefelski, D, Tietje, I C, Volponi, M, Wolz, T, Zawada, M, Zimmer, C, and Zurlo, N

Subjects
Nuclear Physics - Experiment
Abstract

ments which provide the most precise data on the strong interaction between protons and antiprotons and of the neutron skin of many nuclei thanks to the clean annihilation signal. In most of these experiments, the capture process of low energy antiprotons was done in a dense target leading to a significant suppression of specific transitions between deeply bound levels that are of particular interest. In particular, precise measurements of specific transitions in antiprotonic atoms with Z>2 are sparse. We propose to use the pulsed production scheme developed for antihydrogen and protonium for the formation of cold antiprotonic atoms. This technique has been recently achieved experimentally for the production of antihydrogen at AE$\overline{\rm g}$IS. The proposed experiments will have sub-ns synchronization thanks to an improved control and acquisition system. The formation in vacuum guarantees the absence of Stark mixing or annihilation from high n states and together with the sub-ns synchronization would resolve the previous experimental limitations. It will be possible to access the whole chain of the evolution of the system from its formation until annihilation with significantly improved signal-to-background ratio.

Published
2022

23. Pulsed Production of Antihydrogen in AEgIS

Author

Zurlo, N., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cheinet, P., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fani, M., Ferragut, R., Fesel, J., Gerber, S., Giammarchi, M., Gligorova, A., Gloggler, L. T., Guatieri, F., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Malbrunot, C., Mariazzi, S., Matveev, V., Muller, R., Nebbia, G., Nedelec, P., Nowak, L., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Povolo, L., Prelz, F., Prevedelli, M., Rienacker, B., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Testera, G., Tietje, I. C., Toso, V., Wolz, T., Yzombard, P., and Zimmer, C.

Subjects
Antihydrogen, antiprotons, Accelerators and Storage Rings, Antihydrogen, antiprotons
Abstract

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. The pulsed $\bar{H}$ source is generated by the charge-exchange reaction between Rydberg positronium atoms ($Ps$) and trapped antiprotons ($\bar{p}$), cooled and manipulated in an electromagnetic trap: $$ \bar{ p}+Ps^* \rightarrow \bar{H}^* + e^- $$ where Rydberg positronium atoms, in turn, are produced through the implantation of a pulsed positron beam into a mesoporous silica target, and are excited by two subsequent laser pulses, the first to $n=3$, the second to the needed Rydberg level ($n \simeq 17$). The pulsed production allows the control of the antihydrogen temperature, and facilitates the tunability of the Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. In fact, the production of pulsed antihydrogen is a major milestone in the AEgIS experiment to perform direct measurements of the validity of the Weak Equivalence Principle for antimatter.

Published
2022

24. AEg̅IS latest results

Author

Guatieri F., Aghion S., Amsler C., Angela G., Bonomi G., Brusa R.S., Caccia M., Caravita R., Castelli F., Cerchiari G., Comparat D., Consolati G., Demetrio A., Di Noto L., Doser M., Evans C., Fanì M., Ferragut R., Fesel J., Fontana A., Gerber S., Giammarchi M., Gligorova A., Haider S., Hinterberger A., Holmestad H., Kellerbauer A., Krasnický D., Lagomarsino V., Lansonneur P., Lebrun P., Malbrunot C., Mariazzi S., Matveev V., Mazzotta Z., Müller S.R., Nebbia G., Nedelec P., Oberthaler M., Pacifico N., Pagano D., Penasa L., Petracek V., Prelz F., Prevedelli M., Rienaecker B., Robert J., Rhne. O.M., Rotondi A., Sacerdoti M., Sandaker H., Santoro R., Simon M., Smestad L., Sorrentino F., Testera G., Tietje I.C., Widmann E., Yzombard P., Zimmer C., Zmeskal J., and Zurlo N.

Subjects
Physics, QC1-999
Abstract

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. The AEg̅IS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) experiment located at CERN's AD (Antiproton Decelerator) facility aims at producing such a probe in the form of a pulsed beam of cold anti-hydrogen, and at measuring by means of a moiré deflectometer the gravitational force that Earth's mass exerts on it. Low temperature and abundance of the H̅ are paramount to attain a high precision measurement. A technique employing a charge-exchange reaction between antiprotons coming from the AD and excited positronium atoms is being developed at AEg̅IS and will be presented hereafter, alongside an overview of the experimental apparatus and the current status of the experiment

Published
2018
Full Text
View/download PDF

25. Towards the first measurement of matter-antimatter gravitational interaction

Author

Evans C., Aghion S., Amsler C., Bonomi G., Brusa R.S., Caccia M., Caravita R., Castelli F., Cerchiari G., Comparat D., Consolati G., Demetrio A., Di Noto L., Doser M., Fani M., Ferragut R., Fesel J., Fontana A., Gerber S., Giammarchi M., Gligorova A., Guatieri F., Haider S., Hinterberger A., Holmestad H., Kellerbauer A., Khalidova O., Krasnický D., Lagomarsino V., Lansonneur P., Lebrun P., Malbrunot C., Mariazzi S., Marton J., Matveev V., Mazzotta Z., Müller S.R., Nebbia G., Nedelec P., Oberthaler M., Pacifico N., Pagano D., Penasa L., Petracek V., Prelz F., Prevedelli M., Ravelli L., Rienaecker B., Robert J., Røhne O.M., Rotondi A., Sandaker H., Santoro R., Smestad L., Sorrentino F., Testera G., Tietje I.C., Widmann E., Yzombard P., Zimmer C., Zmeskal J., and Zurlo N.

Subjects
Physics, QC1-999
Abstract

The AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is a CERN based experiment with the central aim to measure directly the gravitational acceleration of antihydrogen. Antihydrogen atoms will be produced via charge exchange reactions which will consist of Rydberg-excited positronium atoms sent to cooled antiprotons within an electromagnetic trap. The resulting Rydberg antihydrogen atoms will then be horizontally accelerated by an electric field gradient (Stark effect), they will then pass through a moiré deflectometer. The vertical deflection caused by the Earth's gravitational field will test for the first time the Weak Equivalence Principle for antimatter. Detection will be undertaken via a position sensitive detector. Around 103 antihydrogen atoms are needed for the gravitational measurement to be completed. The present status, current achievements and results will be presented, with special attention toward the laser excitation of positronium (Ps) to the n=3 state and the production of Ps atoms in the transmission geometry.

Published
2018
Full Text
View/download PDF

26. Velocity-selected production of 2S3 metastable positronium

Author

Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., Zurlo, N., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., and Zurlo, N.

Subjects
positronium, antihydrogen
Abstract

Positronium in the 2 3 S metastable state exhibits a low electrical polarizability and a long lifetime (1140 ns), making it a promising candidate for interferometry experiments with a neutral matter-antimatter system. In the present work, 2 3 S positronium is produced, in the absence of an electric field, via spontaneous radiative decay from the 3 3 P level populated with a 205-nm UV laser pulse. Thanks to the short temporal length of the pulse, 1.5 ns full width at half maximum, different velocity populations of a positronium cloud emitted from a nanochanneled positron-positronium converter were selected by delaying the excitation pulse with respect to the production instant. 2 3 S positronium atoms with velocity tuned between 7 × 10 4 ms −1 and 10 × 10 4 ms −1 were thus produced. Depending on the selected velocity, a 2 3 S production efficiency ranging from ∼0.8% to ∼1.7%, with respect to the total amount of emitted positronium, was obtained. The observed results give a branching ratio for the 3 3 P-2 3 S spontaneous decay of (9.7 ± 2.7)%. The present velocity selection technique could allow one to produce an almost monochromatic beam of ∼1 × 10 3 2 3 S atoms with a velocity spread of

Published
2019

27. High-yield thermalized positronium at room temperature emitted by morphologically tuned nanochanneled silicon targets

Author

Mariazzi, S, primary, Caravita, R, additional, Zimmer, C, additional, Rienäcker, B, additional, Camper, A, additional, Belov, A, additional, Bonomi, G, additional, Brusa, R S, additional, Castelli, F, additional, Consolati, G, additional, Doser, M, additional, Gjersdal, H, additional, Glöggler, L T, additional, Guatieri, F, additional, Haider, S, additional, Matveev, V, additional, Nebbia, G, additional, Nedelec, P, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Prelz, F, additional, Povolo, L, additional, Rhøne, O M, additional, Rotondi, A, additional, Sandaker, H, additional, and Zurlo, N, additional

Published
2021
Full Text
View/download PDF

28. Probing antimatter gravity – The AEGIS experiment at CERN

Author

Kellerbauer A., Aghion S., Amsler C., Ariga A., Ariga T., Bonomi G., Bräunig P., Bremer J., Brusa R. S., Cabaret L., Caccia M., Caravita R., Castelli F., Cerchiari G., Chlouba K., Cialdi S., Comparat D., Consolati G., Demetrio A., Di Noto L., Doser M., Dudarev A., Ereditato A., Evans C., Ferragut R., Fesel J., Fontana A., Gerber S., Giammarchi M., Gligorova A., Guatieri F., Haider S., Holmestad H., Huse T., Jordan E., Kimura M., Koettig T., Krasnický D., Lagomarsino V., Lansonneur P., Lebrun P., Lehner S., Liberadzka J., Malbrunot C., Mariazzi S., Matveev V., Mazzotta Z., Nebbia G., Nédélec P., Oberthaler M., Pacifico N., Pagano D., Penasa L., Petráček V., Pistillo C., Prelz F., Prevedelli M., Ravelli L., Rienäcker B., Røhne O.M., Rotondi A., Sacerdoti M., Sandaker H., Santoro R., Scampoli P., Smestad L., Sorrentino F., Špaček M., Storey J., Strojek I.M., Testera G., Tietje I., Widmann E., Yzombard P., Zavatarelli S., Zmeskal J., and Zurlo N.

Subjects
Physics, QC1-999
Abstract

The weak equivalence principle states that the motion of a body in a gravitational field is independent of its structure or composition. This postulate of general relativity has been tested to very high precision with ordinary matter, but no relevant experimental verification with antimatter has ever been carried out. The AEGIS experiment will measure the gravitational acceleration of antihydrogen to ultimately 1% precision. For this purpose, a pulsed horizontal antihydrogen beam with a velocity of several 100 m s−1 will be produced. Its vertical deflection due to gravity will be detected by a setup consisting of material gratings coupled with a position-sensitive detector, operating as a moiré deflectometer or an atom interferometer. The AEGIS experiment is installed at CERN’s Antiproton Decelerator, currently the only facility in the world which produces copious amounts of low-energy antiprotons. The construction of the setup has been going on since 2010 and is nearing completion. A proof-of-principle experiment with antiprotons has demonstrated that the deflection of antiparticles by a few μm due to an external force can be detected. Technological and scientific development pertaining to specific challenges of the experiment, such as antihydrogen formation by positronium charge exchange or the position-sensitive detection of antihydrogen annihilations, is ongoing.

Published
2016
Full Text
View/download PDF

29. Protocol for pulsed antihydrogen production in the AE$\overline{g}$IS apparatus

Author

Tietje, I.C., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R.S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cheinet, P., Comparat, D., Consolati, G., Demetrio, A., Noto, L.Di, Doser, M., Fanì, M., Ferragut, R., Fesel, J., Gerber, S., Giammarchi, M., Gligorova, A., Glöggler, L.T., Guatieri, F., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Malbrunot, C., Nowak, L., Mariazzi, S., Matveev, V., Müller, S.R., Nebbia, G., Nedelec, P., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Povolo, L., Prelz, F., Prevedelli, M., Rienäcker, B., Røhne, O.M., Rotondi, A., Sandaker, H., Santoro, R., Testera, G., Toso, V., Wolz, T., Yzombard, P., Zimmer, C., Zurlo, N., Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
velocity, experimental methods, antihydrogen: production, deflection, gravitation: acceleration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], beam: pulsed, anti-p: acceleration, time-of-flight, talk, anti-p p: annihilation, antihydrogen: acceleration, Particle Physics - Experiment
Abstract

International audience; The AEḡIS collaboration’s main goal is to measure the acceleration of antihydrogen it ($\textit{H}$) due to gravity. The experimental scheme is to form a pulsed beam whose vertical deflection is then measured by means of a moiré deflectometer [1]. Creating pulsed $\textit{H}$is crucial since it allows a velocity measurement of the antiatoms via time of flight ($\mathrm{ToF}$) necessary to deduce the gravitational acceleration ḡ from the vertical deflection $\Delta\mathit{s}$. The aim of this article is to outline the experimental protocol leading up to pulsed antihydrogen production in the AEḡIS experiment.

Published
2020

30. Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter

Author

Fanì, M, primary, Antonello, M, additional, Belov, A, additional, Bonomi, G, additional, Brusa, R S, additional, Caccia, M, additional, Camper, A, additional, Caravita, R, additional, Castelli, F, additional, Comparat, D, additional, Cheinet, P, additional, Consolati, G, additional, Demetrio, A, additional, Di Noto, L, additional, Doser, M, additional, Ferragut, R, additional, Fesel, J, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Glöggler, L T, additional, Guatieri, F, additional, Haider, S, additional, Hinterberger, A, additional, Kellerbauer, A, additional, Khalidova, O, additional, Krasnicky`, D, additional, Lagomarsino, V, additional, Malbrunot, C, additional, Nowak, L, additional, Mariazzi, S, additional, Matveev, V, additional, Müller, S R, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Oswald, E, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Povolo, L, additional, Prelz, F, additional, Prevedelli, M, additional, Rienäcker, B, additional, Røhne, O M, additional, Rotondi, A, additional, Sandaker, H, additional, Santoro, R, additional, Testera, G, additional, Tietje, I C, additional, Toso, V, additional, Wolz, T, additional, Zimmer, C, additional, and Zurlo, N, additional

Published
2020
Full Text
View/download PDF

31. Protocol for pulsed antihydrogen production in the AEḡIS apparatus

Author

Tietje, I C, primary, Amsler, C, additional, Antonello, M, additional, Belov, A, additional, Bonomi, G, additional, Brusa, R S, additional, Caccia, M, additional, Camper, A, additional, Caravita, R, additional, Castelli, F, additional, Cheinet, P, additional, Comparat, D, additional, Consolati, G, additional, Demetrio, A, additional, Noto, L Di, additional, Doser, M, additional, Fanì, M, additional, Ferragut, R, additional, Fesel, J, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Glöggler, L T, additional, Guatieri, F, additional, Haider, S, additional, Hinterberger, A, additional, Kellerbauer, A, additional, Khalidova, O, additional, Krasnický, D, additional, Lagomarsino, V, additional, Malbrunot, C, additional, Nowak, L, additional, Mariazzi, S, additional, Matveev, V, additional, Müller, S R, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Oswald, E, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Povolo, L, additional, Prelz, F, additional, Prevedelli, M, additional, Rienäcker, B, additional, Røhne, O M, additional, Rotondi, A, additional, Sandaker, H, additional, Santoro, R, additional, Testera, G, additional, Toso, V, additional, Wolz, T, additional, Yzombard, P, additional, Zimmer, C, additional, and Zurlo, N, additional

Published
2020
Full Text
View/download PDF

32. A cryogenic tracking detector for antihydrogen detection in the AEgIS experiment

Author

Amsler, C., primary, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R.S., additional, Caccia, M., additional, Camper, A., additional, Caravita, R., additional, Castelli, F., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Ekman, P.A., additional, Fanì, M., additional, Ferragut, R., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Hackstock, P., additional, Haider, D., additional, Haider, S., additional, Hinterberger, A., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Müller, S.R., additional, Nebbia, G., additional, Nedelec, P., additional, Nowak, L., additional, Oberthaler, M., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Rienaecker, B., additional, Robert, J., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Storey, J., additional, Testera, G., additional, Tietje, I.C., additional, Toso, V., additional, Wolz, T., additional, Wuethrich, J., additional, Yzombard, P., additional, Zimmer, C., additional, and Zurlo, N., additional

Published
2020
Full Text
View/download PDF

34. Hybrid Imaging and Timing Ps Laser Excitation Diagnostics for Pulsed Antihydrogen Production

Author

Caravita, R., primary, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R.S., additional, Caccia, M., additional, Camper, A., additional, Castelli, F., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Fanì, M., additional, Ferragut, R., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Glöggler, L.T., additional, Guatieri, F., additional, Haider, S., additional, Hinterberger, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Müller, S.R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Rienäcker, B., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Testera, G., additional, Tietje, I., additional, Toso, V., additional, Wolz, T., additional, Zimmer, C., additional, and Zurlo, N., additional

Published
2020
Full Text
View/download PDF

35. Techniques for Production and Detection of 23S Positronium

Author

Mariazzi, S., primary, Caravita, R., additional, Vespertini, A., additional, Camper, A., additional, Rienacker, B., additional, Brusa, R.S., additional, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Caccia, M., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Noto, Di, additional, Doser, M., additional, Fanì, M., additional, Fesel, J., additional, Gerber, S., additional, Gligorova, A., additional, Guatieri, F., additional, Hackstock, P., additional, Haider, S., additional, Hinterberger, A., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnicky, D., additional, Lagomarsino, V., additional, Lebrun, P., additional, Malbrunot, C., additional, Matveev, V., additional, Muller, S.R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Robert, J., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Testera, G., additional, Tietje, I.C., additional, Widmann, E., additional, Wolz, T., additional, Yzombard, P., additional, Zimmer, C., additional, and Zurlo, N., additional

Published
2020
Full Text
View/download PDF

36. Gravity and antimatter: the AEgIS experiment at CERN

Author

Pagano, D., primary, Aghion, S., additional, Amsler, C., additional, Bonomi, G., additional, Brusa, R. S., additional, Caccia, M., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Noto, L.Di, additional, Doser, M., additional, Evans, A., additional, Fani, M., additional, Ferragut, R., additional, Fesel, J., additional, Fontana, A., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Haider, S., additional, Hinterberger, A., additional, Holmestad, H., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lansonneur, P., additional, Lebrun, P., additional, Malbrunot, C., additional, Mariazzi, S., additional, Marton, J., additional, Matveev, V., additional, Mazzotta, Z., additional, Müller, S. R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pacifico, N., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Ravelli, L., additional, Rienaecker, B., additional, Robert, J., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Smestad, L., additional, Sorrentino, F., additional, Testera, G., additional, Tietje, I. C., additional, Widmann, E., additional, Yzombard, P., additional, Zimmer, C., additional, Zmeskal, J., additional, and Zurlo, N., additional

Published
2020
Full Text
View/download PDF

37. Calibration and Equalisation of Plastic Scintillator Detectors for Antiproton Annihilation Identification Over Positron/Positronium Background

Author

Zurlo, N., primary, Amsler, C., additional, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R.S., additional, Caccia, M., additional, Camper, A., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Fanì, M., additional, Ferragut, R., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Gloggler, L., additional, Guatieri, F., additional, Haider, S., additional, Hinterberger, A., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Müller, S.R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Rienaecker, B., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Testera, G., additional, Tietje, I.C., additional, Toso, V., additional, Wolz, T., additional, Yzombard, P., additional, and Zimmer, C., additional

Published
2020
Full Text
View/download PDF

38. The AEgIS experiment at CERN: Probing antimatter gravity

Author

Caravita, R., Aghion, S., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R.S., Caccia, M., Camper, A., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fani, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Muller, S.R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienacker, B., Robert, J., Røhne, O.M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I., Vujanovic, M., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., Zurlo, N., Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AEgIS, Caravita, R, Aghion, S, Amsler, C, Antonello, M, Belov, A, Bonomi, G, Brusa, RS, Caccia, M, Camper, A, Castelli, F, Cerchiari, G, Comparat, D, Consolati, G, Demetrio, A, Di Noto, L, Doser, M, Evans, C, Fani, M, Ferragut, R, Fesel, J, Fontana, A, Gerber, S, Giammarchi, M, Gligorova, A, Guatieri, F, Hackstock, P, Haider, S, Hinterberger, A, Holmestad, H, Kellerbauer, A, Khalidova, O, Krasnicky, D, Lagomarsino, V, Lansonneur, P, Lebrun, P, Malbrunot, C, Mariazzi, S, Marton, J, Matveev, V, M'uller, SR, Nebbia, G, Nedelec, P, Oberthaler, M, Pagano, D, Penasa, L, Petracek, V, Prelz, F, Prevedelli, M, Rienacker, B, Robert, J, Rohne, OM, Rotondi, A, Sandaker, H, Santoro, R, Smestad, L, Sorrentino, F, Testera, G, Tietje, I, Vujanovic, M, Widmann, E, Yzombard, P, Zimmer, C, Zmeskal, J, Zurlo, N, Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics::General Physics, CERN Lab, deflection, antihydrogen: production, positronium: production, talk: Bologna 2018/09/02, antimatter: gravitation, Physics::Atomic and Molecular Clusters, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Accelerator Physics, High Energy Physics::Experiment, Physics::Atomic Physics, gravity, antimatter, Particle Physics - Experiment, experimental results
Abstract

International audience; The AE$\overline{g}$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. Subsequently, the free-fall acceleration of a cold horizontal beam of antihydrogen will be measured by a deflectometer. The present status, recent experimental progress and the medium-term plan of the AE$\overline{g}$IS experiment are presented.

Published
2018

39. Producing long-lived 2 3S positronium via 3 3P laser excitation in magnetic and electric fields

Author

Aghion, S., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fani, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Vujanovic, M., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., Zurlo, N., Aghion, S., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R.S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fanì, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Müller, S.R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O.M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I.C., Vujanovic, M., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., and Zurlo, N.

Subjects
Atomic and Molecular Physics, and Optics, Positronium, Atomic and Molecular Physics, and Optics, Atomic and Molecular Physics, and Optics
Abstract

Producing positronium (Ps) in the metastable 2 3 S state is of interest for various applications in fundamental physics. We report here on an experiment in which Ps atoms are produced in this long-lived state by spontaneous radiative decay of Ps excited to the 3 3 P level manifold. The Ps cloud excitation is obtained with a UV laser pulse in an experimental vacuum chamber in presence of guiding magnetic field of 25 mT and an average electric field of 300 V cm−1. The evidence of the 2 3 S state production is obtained to the 3.6σ level of statistical significance using a novel analysis technique of the single-shot positronium annihilation lifetime spectra. The dynamic of the Ps population on the involved levels has been studied with a rate equation model.

Published
2018

40. Efficient 2 S 3 positronium production by stimulated decay from the 3 P 3 level

Author

Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Oswald, E., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Rienaecker, B., Robert, J., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Testera, G., Tietje, I. C., Widmann, E., Wolz, T., Yzombard, P., Zimmer, C., and Zurlo, N.

Published
2019

41. Correction to: Compression of a mixed antiproton and electron non-neutral plasma to high densities (The European Physical Journal D, (2018), 72, 4, (76), 10.1140/epjd/e2018-80617-x)

Author

Aghion, S., Amsler, C., Bonomi, G., Brusa, R. S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fani, M., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Muller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Rohne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., Zmeskal, J., Zurlo, N., and Antonello, M.

Published
2019

42. Velocity-selected production of 2 S 3 metastable positronium

Author

Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Fanì, M., Gerber, S., Gligorova, A., Guatieri, F., Hackstock, P., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pagano, D., Penasa, L., Petracek, V., Prelz, F., Prevedelli, M., Rienaecker, B., Robert, J., Røhne, O. M., Rotondi, A., Sandaker, H., Santoro, R., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., and Zurlo, N.

Subjects
positronium, antimatter, Atomic and Molecular Physics, positronium, antimatter, and Optics, Atomic and Molecular Physics, and Optics
Published
2019

43. AE$\overline{g}$IS latest results

Author

Guatieri, F, Aghion, S, Amsler, C, Angela, G, Bonomi, G, Brusa, R S, Caccia, M, Caravita, R, Castelli, F, Cerchiari, G, Comparat, D, Consolati, G, Demetrio, A, Di Noto, L, Doser, M, Evans, C, Fanì, M, Ferragut, R, Fesel, J, Fontana, A, Gerber, S, Giammarchi, M, Gligorova, A, Haider, S, Hinterberger, A, Holmestad, H, Kellerbauer, A, Krasnický, D, Lagomarsino, V, Lansonneur, P, Lebrun, P, Malbrunot, C, Mariazzi, S, Matveev, V, Mazzotta, Z, Müller, S R, Nebbia, G, Nedelec, P, Oberthaler, M, Pacifico, N, Pagano, D, Penasa, L, Petracek, V, Prelz, F, Prevedelli, M, Rienaecker, B, Robert, J, Rhne , O M, Rotondi, A, Sacerdoti, M, Sandaker, H, Santoro, R, Simon, M, Smestad, L, Sorrentino, F, Testera, G, Tietje, I C, Widmann, E, Yzombard, P, Zimmer, C, Zmeskal, J, and Zurlo, N

Subjects
Detectors and Experimental Techniques, Particle Physics - Experiment
Abstract

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. The AEg̅IS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) experiment located at CERN's AD (Antiproton Decelerator) facility aims at producing such a probe in the form of a pulsed beam of cold anti-hydrogen, and at measuring by means of a moiré deflectometer the gravitational force that Earth's mass exerts on it. Low temperature and abundance of the H̅ are paramount to attain a high precision measurement. A technique employing a charge-exchange reaction between antiprotons coming from the AD and excited positronium atoms is being developed at AEg̅IS and will be presented hereafter, alongside an overview of the experimental apparatus and the current status of the experiment.

Published
2018

44. The AEgIS experiment: towards antimatter gravity measurements

Author

Khalidova, O, primary, Aghion, S, additional, Amsler, C, additional, Antonello, M, additional, Belov, A, additional, Bonomi, G, additional, Brusa, R S, additional, Caccia, M, additional, Camper, A, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Comparat, D, additional, Consolati, G, additional, Demetrio, A, additional, Noto, L D, additional, Doser, M, additional, Evans, C, additional, Fani, M, additional, Ferragut, R, additional, Fesel, J, additional, Fontana, A, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Guatieri, F, additional, Hackstock, P, additional, Haider, S, additional, Hinterberger, A, additional, Holmestad, H, additional, Kellerbauer, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Lansonneur, P, additional, Lebrun, P, additional, Malbrunot, C, additional, Mariazzi, S, additional, Marton, J, additional, Matveev, V, additional, Müller, S, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Prelz, F, additional, Prevedelli, M, additional, Rienaecker, B, additional, Robert, J, additional, Røhne, O, additional, Rotondi, Alberto, additional, Sandaker, H, additional, Santoro, R, additional, Smestad, L, additional, Sorrentino, F, additional, Testera, G, additional, Tietje, I, additional, Vujanovic, M, additional, Widmann, E, additional, Yzombard, P, additional, Zimmer, C, additional, Zmeskal, J, additional, and Zurlo, N, additional

Published
2019
Full Text
View/download PDF

45. A ∼100 μm-resolution position-sensitive detector for slow positronium

Author

Amsler, C., primary, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R.S., additional, Caccia, M., additional, Camper, A., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Fanì, M., additional, Ferragut, R., additional, Fesel, J., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Hackstock, P., additional, Haider, S., additional, Hinterberger, A., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lebrun, P., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Müller, S.R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Oswald, E., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Rienaecker, B., additional, Robert, J., additional, Røhne, O.M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Testera, G., additional, Tietje, I.C., additional, Widmann, E., additional, Wolz, T., additional, Yzombard, P., additional, Zimmer, C., additional, and Zurlo, N., additional

Published
2019
Full Text
View/download PDF

46. Positronium Rydberg excitation diagnostic in a 1T cryogenic environment

Author

Caravita, R., primary, Mariazzi, S., additional, Aghion, S., additional, Amsler, C., additional, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R. S., additional, Caccia, M., additional, Camper, A., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Evans, C., additional, Fanì, M., additional, Ferragut, R., additional, Fesel, J., additional, Fontana, A., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Hackstock, P., additional, Haider, S., additional, Hinterberger, A., additional, Holmestad, H., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lansonneur, P., additional, Lebrun, P., additional, Malbrunot, C., additional, Marton, J., additional, Matveev, V., additional, Müller, S. R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Rienaecker, B., additional, Robert, J., additional, Røhne, O. M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Smestad, L., additional, Sorrentino, F., additional, Testera, G., additional, Tietje, I. C., additional, Vujanovic, M., additional, Widmann, E., additional, Yzombard, P., additional, Zimmer, C., additional, Zmeskal, J., additional, and Zurlo, N., additional

Published
2019
Full Text
View/download PDF

47. Towards a gravity measurement on cold antimatter atoms

Author

Caravita, R., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Caccia, M., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Noto, L. Di, Doser, M., Dudarev, A., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Forslund, O. K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I. L., Jordan, E., Kaltenbacher, T., Kellerbauer, A., Kimura, M., Koetting, T., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Lehner, S., Liberadzka, J., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Rienäcker, B., Røhne, O. M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Sorrentino, F., Spacek, M., Storey, J., Strojek, I. M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., Caravita, R., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R.S., Cabaret, L., Caccia, M., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Forslund, O.K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I.L., Jordan, E., Kaltenbacher, T., Kellerbauer, A., Kimura, M., Koetting, T., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Lehner, S., Liberadzka, J., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Rienäcker, B., Rohne, O.M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Sorrentino, F., Spacek, M., Storey, J., Strojek, I.M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and AEGIS

Subjects
Physics and Astronomy (miscellaneous), Physics in General, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Accelerator Physics, Astronomy and Astrophysics, High Energy Physics::Experiment, Physics::Atomic Physics, gravity, antimatter, Nuclear Experiment
Abstract

International audience; The present status of the AEGIS experiment at CERN (AD-06), on the way of forming anti-hydrogen for a first gravity measurement, is reviewed.Recent results in trapping and cooling positrons and antiprotons in the main electromagnetic traps are presented, including the storage time measurement obtained during the 2014 run with antiprotons, the observation of centrifugal separation of a mixed antiproton/electron plasma and positron accumulation and transfer results obtained during 2015.

Published
2016

48. The Weak Equivalence Principle With Antimatter: The AEgIS Experiment At CERN

Author

Pagano, D., Amsler, C., Ariga, T., Bonomi, G., Bräunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Andrea Fontana, Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Røhne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., Zurlo, N., Pagano, D., Amsler, C., Ariga, T., Bonomi, G., Braunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Rohne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., and Zurlo, N.

Subjects
Physics::General Physics, Astrophysics and Astronomy, Physics::Atomic and Molecular Clusters, Physics::Accelerator Physics, Physics::Atomic Physics, Particle Physics - Experiment
Abstract

The AEgIS experiment at CERN’s Antiproton Decelerator (AD) aims at performing a direct measurement of the gravitational force on antimatter to probe the Weak Equivalence Principle of General Relativity with antimatter. The idea is to measure the vertical displacement of a cold antihydrogen beam, due to the gravitational force, by using a moiré deflectometer. Antihydrogen will be formed through the reaction of charge exchange between cold antiprotons and Rydberg positronium. An overview of the physics goals, experimental setup and preliminary results is presented.

Published
2016

49. Antimatter Gravity Measurements with Cold Antihydrogen: the AEgIS Experiment

Author

Doser, M., Amsler, C., Ariga, T., Bonomi, G., Braunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Røhne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., and Zurlo, N.

Subjects
Nuclear physics, Physics, Gravitation, Antimatter, Gravity (chemistry), CPT Symetry, Antimatter, Gravity, CPT Symetry, Gravity, Equivalence principle, Antihydrogen, Charge exchange
Published
2017

50. AEgIS Experiment: Status & Outlook

Author

Lansonneur, P., Aghion, S., Amsler, C., Bonomi, G., Brusa, R. S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacico, N., Pagano, D., Penasa, L., Petracek, V., Francesco Prelz, Prevedelli, M., Ravelli, L., Rienaecker, B., Robert, J., Rhøne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Simon, M., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., Zmeska, J., Zurlo, N., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Aimé Cotton ( LAC ), École normale supérieure - Cachan ( ENS Cachan ) -Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan)

Subjects
Physics::General Physics, experimental methods, CERN Lab, General Relativity and Cosmology, interferometer, antihydrogen: beam, [ PHYS.GRQC ] Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], gravitation, positron: capture, anti-p: capture, antimatter, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Physics::Atomic and Molecular Clusters, spectrometer, Physics::Atomic Physics, positronium: excited state
Abstract

International audience; 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. We present here some of the experimental techniques involved in the experiment as well as the status of the detector test envisioned for the gravity measurement.

Published
2017

Catalog

Books, media, physical & digital resources
See catalog results