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25 results on '"Chlouba, K."'

1. 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
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2. 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
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3. The AEGIS experiment at CERN : Measuring the free fall of antihydrogen

Author

The AEGIS Collaboration, Kellerbauer, A., Allkofer, Y., Amsler, C., Belov, A. S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Burghart, G., Cabaret, L., Canali, C., Castelli, F., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Dassa, L., Di Noto, L., Donzella, A., Doser, M., Dudarev, A., Eisel, T., Ferragut, R., Ferrari, G., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Hansen, J. P., Haug, F., Hogan, S. D., Jørgensen, L. V., Kaltenbacher, T., Krasnický, D., Lagomarsino, V., Mariazzi, S., Matveev, V. A., Merkt, F., Moia, F., Nebbia, G., Nédélec, P., Niinikoski, T., Oberthaler, M. K., Perini, D., Petráček, V., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Rochet, J., Røhne, O., Rotondi, A., Sacerdoti, M., Sandaker, H., Špaček, M., Storey, J., Testera, G., Tokareva, A., Trezzi, D., Vaccarone, R., Villa, F., Warring, U., Zavatarelli, S., Zenoni, A., Bühler, Paul, editor, Hartmann, Olaf, editor, Marton, Johann, editor, Suzuki, Ken, editor, Widmann, Eberhard, editor, and Zmeskal, Johann, editor

Published
2012
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4. The AEgIS experiment

Author

Testera, G., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Braunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Curreli, S., Demetrio, A., Derking, H., Noto, L. Di, Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E. J., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., 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., Riccardi, C., Røhne, O. M., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Semeria, L., Simon, M., Spacek, M., Storey, J., Strojek, I. M., Subieta, M., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., and (AEgIS Collaboration)

Published
2015
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5. Emulsion detectors for the antihydrogen detection in AEgIS

Author

Pistillo, C., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., 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., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E. J., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Špaček, M., Storey, J., Strojek, I. M., Subieta, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., and Zmeskal, J.

Published
2015
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6. The AEGIS experiment at CERN: Measuring the free fall of antihydrogen

Author

Kellerbauer, A., Allkofer, Y., Amsler, C., Belov, A. S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Burghart, G., Cabaret, L., Canali, C., Castelli, F., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Dassa, L., Di Noto, L., Donzella, A., Doser, M., Dudarev, A., Eisel, T., Ferragut, R., Ferrari, G., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Hansen, J. P., Haug, F., Hogan, S. D., Jørgensen, L. V., Kaltenbacher, T., Krasnický, D., Lagomarsino, V., Mariazzi, S., Matveev, V. A., Merkt, F., Moia, F., Nebbia, G., Nédélec, P., Niinikoski, T., Oberthaler, M. K., Perini, D., Petráček, V., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Rochet, J., Røhne, O., Rotondi, A., Sacerdoti, M., Sandaker, H., Špaček, M., Storey, J., Testera, G., Tokareva, A., Trezzi, D., Vaccarone, R., Villa, F., Warring, U., Zavatarelli, S., Zenoni, A., and The AEGIS Collaboration

Published
2012
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7. Emulsion detectors for the antihydrogen detection in AEgIS

Author

Pistillo, C., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Špaček, M., Storey, J., Strojek, I., Subieta, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., Pistillo, C., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Špaček, M., Storey, J., Strojek, I., Subieta, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., and Zmeskal, J.

Abstract

The AEgIS experiment at CERN aims to perform the first direct measurement of gravitational interaction between matter and antimatter by measuring the deviation of a cold antihydrogen beam in the Earth gravitational field. The design of the experiment has been recently updated to include emulsion films as position sensitive detector. The submicrometric position accuracy of emulsions leads indeed to a significant improvement of the experimental sensitivity. We present results of preliminary tests and discuss perspectives for the final measurement.

Published
2021

8. 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
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9. Experiments with low-energy antimatter

Author

Consolati G., Aghion S., Amsler C., Ariga A., Ariga T., Belov A., 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., Demetrio A., Derking H., Di Noto L., Doser M., Dudarev A., Ereditato A., Ferragut R., Fontana A., Gerber S., Giammarchi M., Gligorova A., Gninenko S., Haider S., Hogan S., Holmestad H., Huse T., Jordan E. J., Kawada J., Kellerbauer A., Kimura M., Krasnicky D., Lagomarsino V., Lehner S., 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., Riccardi C., Røhne O.M., Rosenberger S., Rotondi A., Sacerdoti M., Sandaker H., Santoro R., Scampoli P., Simon M., Spacek M., Storey J., Strojek I. M., Subieta M., Testera G., Widmann E., Yzombard P., Zavatarelli S., and Zmeskal J.

Subjects
Physics, QC1-999
Abstract

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. International collaborations currently on the floor (ALPHA, ASACUSA and ATRAP) have succeeded in producing antihydrogen and are now involved in its confinement and manipulation. The AEGIS experiment is currently completing the commissioning of the apparatus which will generate and manipulate antiatoms. The present paper, after a report on the main results achieved with antihydrogen physics, gives an overview of the AEGIS experiment, describes its current status and discusses its first target.

Published
2015
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10. 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
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11. Experiments with low-energy antimatter

Author

Aghion, S., Gerber, S., Mariazzi, S., Malbrunot, C., Eidelman, S., Caravita, R., Demetrio, A., Zavatarelli, S., Di Noto, L., Storey, James William, Giardina, G., Rotondi, A., Petracek, V., Fontana, A., Testera, G., Amsler, Claude, Oberthaler, M., Comparat, D., Rosenberger, S., Brusa, R.S., Bonomi, G., Nedelec, P., Doser, M., Consolati, G., Lehner, S., Prelz, F., Riccardi, C., Cabaret, L., Zmeskal, J., Castelli, F., Derking, H., Chlouba, K., Jordan, E. J., Pacifico, N., Widmann, E., Bremer, J., Sacerdoti, M., Mandaglio, G., Hogan, S., Giammarchi, M., Ariga, Akitaka, Gligorova, A., Scampoli, Paola, Pistillo, Ciro, Strojek, I. M., Gninenko, S., Simon, M., Nebbia, G., Santoro, R., Kimura, Mitsuhiro, Cerchiari, G., Kellerbauer, A., Penasa, L., Kawada, Jiro, Venanzoni, G., Battaglieri, M., Cialdi, S., Dudarev, A., Prevedelli, M., Ariga, Tomoko, Matveev, V., Yzombard, P., Caccia, M., Krasnicky, D., Sandaker, H., Røhne, O.M., Holmestad, H., Bräunig, P., Ereditato, Antonio, Mazzotta, Z., Belov, A., Subieta, M., Ferragut, R., Lagomarsino, V., Ravelli, L., Haider, S., Huse, T., Spacek, M., 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), G., Giardina, G., Consolati, S., Aghion, C., Amsler, A., Ariga, T., Ariga, A., Belov, G., Bonomi, P., Bräunig, J., Bremer, R. S., Brusa, L., Cabaret, M., Caccia, R., Caravita, F., Castelli, G., Cerchiari, K., Chlouba, S., Cialdi, D., Comparat, A., Demetrio, H., Derking, L., Di Noto, M., Doser, A., Dudarev, A., Ereditato, R., Ferragut, A., Fontana, S., Gerber, M., Giammarchi, A., Gligorova, S., Gninenko, S., Haider, S., Hogan, H., Holmestad, T., Huse, E. J., Jordan, J., Kawada, A., Kellerbauer, M., Kimura, D., Krasnicky, V., Lagomarsino, S., Lehner, C., Malbrunot, S., Mariazzi, V., Matveev, Z., Mazzotta, G., Nebbia, P., Nedelec, M., Oberthaler, N., Pacifico, L., Penasa, V., Petracek, C., Pistillo, F., Prelz, M., Prevedelli, L., Ravelli, C., Riccardi, O. M., Røhne, S., Rosenberger, A., Rotondi, M., Sacerdoti, H., Sandaker, R., Santoro, Scampoli, Paola, M., Simon, M., Spacek, J., Storey, I. M., Strojek, M., Subieta, G., Testera, E., Widmann, P., Yzombard, S., Zavatarelli, J., Zmeskal, S., Eidelman, G., Venanzoni, M., Battaglieri, and G., Mandaglio

Subjects
Physics, Large Hadron Collider, 530 Physics, QC1-999, PLASMAS, ANTIHYDROGEN BEAM, AEGIS EXPERIMENT, PENNING TRAP, GRAVITY, SILICA, ATOMS, Nuclear physics, Antiproton Decelerator, Physics and Astronomy (all), Low energy, Antimatter, Systems engineering, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Antihydrogen, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Particle Physics - Experiment, ComputingMilieux_MISCELLANEOUS
Abstract

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. International collaborations currently on the floor (ALPHA, ASACUSA and ATRAP) have succeeded in producing antihydrogen and are now involved in its confinement and manipulation. The AEGIS experiment is currently completing the commissioning of the apparatus which will generate and manipulate antiatoms. The present paper, after a report on the main results achieved with antihydrogen physics, gives an overview of the AEGIS experiment, describes its current status and discusses its first target.

Published
2015
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12. Exploring the WEP with a pulsed cold beam of antihydrogen

Author

Doser, M., Amsler, C., Belov, A., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R., Burkhart, G., Cabaret, L., Canali, C., Castelli, F., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Noto, L., Donzella, A., Dudarev, A., Eisel, T., Ferragut, R., Ferrari, G., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hansen, J., Hogan, S., Jorgensen, L., Kaltenbacher, T., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Mariazzi, S., Matveev, V., Merkt, F., Nebbia, F., Nedelec, P., Oberthaler, M., Perini, D., Petracek, V., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Rohne, O., Rotondi, A., Sacerdoti, M., Sandaker, H., Spacek, M., Storey, J., Testera, G., Tokareva, A., Trezzi, D., Vaccarone, R., Villa, F., Zavatarelli, Z., Zenoni, A., and AEGIS Collaboration

Published
2012

13. The AEGIS experiment at CERN: Measuring the free fall of antihydrogen

Author

Kellerbauer A. [1], Allkofer Y. [2], Amsler C. [2] : Belov A.S. [3], Bonomi G. [4], Bräunig P. [5], Bremer J. [6], Brusa R.S. [7], Burghart G. [6], Cabaret L. [8], Canali C. [2], Castelli F. [9], Chlouba K. [10], Cialdi S. [9], Comparat D. [8], Consolati G. [11], Dassa L. [4], Di Noto L. [7], Donzella A. [4], Doser M. [6], Dudarev A. [6], Eisel T. [6], Ferragut R. [11], Ferrari G. [12], Fontana A. [13], Genova P. [14], Giammarchi M. [15], Gligorova A. [16], Gninenko S.N. [3], Haider S. [6], Hansen J.P. [16] : Haug F. [6 ], Hogan S.D. [17], Jørgensen L.V. [6], Kaltenbacher T. [6], Krasnický D. [18], Lagomarsino V. [18], Mariazzi S. [19], Matveev V.A. [3 ], Merkt F. [17], Moia F. [11], Nebbia G. [20], Nédélec P. [21], Niinikoski T. [6], Oberthaler M.K. [5], Perini D. [6], Petrácek V. [10], Prelz F. [15], Prevedelli M. [22], Regenfus C. [2], Riccardi C. [14], Rochet J. [2], Røhne O. [23], Rotondi A. [14], Sacerdoti M. [15], Sandaker H. [16], pacek M. [10], Storey J. [2], Testera G. [24], Tokareva A. [3], Trezzi D. [15], Vaccarone R. [24], Villa F.[9], Warring U. [1], Zavatarelli S. [24], and Zenoni A. [4]

Subjects
antihydrogen, Physics::General Physics, gravitation, antiproton, Physics::Atomic and Molecular Clusters, Physics::Accelerator Physics, positron, Physics::Atomic Physics
Abstract

After the first production of cold antihydrogen by the ATHENA and ATRAP experiments ten years ago, new second-generation experiments are aimed at measuring the fundamental properties of this anti-atom. The goal of AEGIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is to test the weak equivalence principle by studying the gravitational interaction between matter and antimatter with a pulsed, cold antihydrogen beam. The experiment is currently being assembled at CERN's Antiproton Decelerator. In AEGIS, antihydrogen will be produced by charge exchange of cold antiprotons with positronium excited to a high Rydberg state (n > 20). An antihydrogen beam will be produced by controlled acceleration in an electric-field gradient (Stark acceleration). The deflection of the horizontal beam due to its free fall in the gravitational field of the earth will be measured with a moiré deflectometer. Initially, the gravitational acceleration will be determined to a precision of 1%, requiring the detection of about 105 antihydrogen atoms. In this paper, after a general description, the present status of the experiment will be reviewed.

Published
2012

14. Particle tracking at cryogenic temperatures: the Fast Annihilation Cryogenic Tracking (FACT) detector for the AEgIS antimatter gravity experiment

Author

Storey, J., primary, Aghion, S., additional, Amsler, C., additional, Ariga, A., additional, Ariga, T., additional, Belov, A., additional, Bonomi, G., additional, Braunig, P., additional, Bremer, J., additional, Brusa, R., additional, Cabaret, L., additional, Caccia, M., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Chlouba, K., additional, Cialdi, S., additional, Comparat, D., additional, Consolati, G., additional, Derking, H., additional, Noto, L. Di, additional, Doser, M., additional, Dudarev, A., additional, Ereditato, A., additional, Ferragut, R., additional, Fontana, A., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Gninenko, S., additional, Haider, S., additional, Hogan, S., additional, Holmestad, H., additional, Huse, T., additional, Jordan, E.J., additional, Kawada, J., additional, Kellerbauer, A., additional, Kimura, M., additional, Krasnicky, D., additional, Lagomarsino, V., additional, Lehner, S., additional, Magnani, A., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Mazzotta, Z., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pacifico, N., additional, Penasa, L., additional, Petracek, V., additional, Pistillo, C., additional, Prelz, F., additional, Prevedelli, M., additional, Ravelli, L., additional, Riccardi, C., additional, Røhne, O.M., additional, Rosenberger, S., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Scampoli, P., additional, Simon, M., additional, Spacek, M., additional, Strojek, I.M., additional, Subieta, M., additional, Testera, G., additional, Vaccarone, R., additional, Widmann, E., additional, Yzombard, P., additional, Zavatarelli, S., additional, and Zmeskal, J., additional

Published
2015
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15. The AEGIS experiment at CERN.

Author

Kellerbauer, A., Allkofer, Y., Amsler, C., Belov, A. S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Burghart, G., Cabaret, L., Canali, C., Castelli, F., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Dassa, L., Di Noto, L., Donzella, A., and Doser, M.

Published
2012
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16. Testing the Weak Equivalence Principle with an antimatter beam at CERN

Author

Ravelli, L, Zmeskal, J., Yzombard, P, Bonomi, G., Ereditato, Antonio, Kellerbauer, A, Cerchiari, G., Riccardi, C, Pagano, D, Lehner, S, Holmestad, H, Spacek, M, Amsler, Claude, Haider, S, Storey, James William, Matveev, V, Kimura, Mitsuhiro, Krasnicky, D, Sorrentino, F, Doser, M, Caravita, R., Belov, A., Ariga, Akitaka, Jordan, E J, Zavatarelli, S, Lagomarsino, V, Cialdi, S, Caccia, M., Røhne, O M, Testera, G, Gerber, S, Chlouba, K., Castelli, F., Rotondi, A, Scampoli, Paola, Santoro, R, Ariga, Tomoko, Malbrunot, C, Comparat, D, Kawada, Jiro, Dudarev, A, Oberthaler, M, Demetrio, A, Bräunig, P., Derking, H, Ferragut, R, Huse, T, Pistillo, Ciro, Mazzotta, Z, Noto, L Di, Cabaret, L., Bremer, J., Pacifico, N, Strojek, I M, Petracek, V, Sandaker, H, Rosenberger, S, Gninenko, S, Widmann, E, Penasa, L, Prevedelli, M, Consolati, G, Fontana, A, Brusa, R. S., Gligorova, A, Prelz, F, Aghion, S., Nedelec, P, Subieta, M, Giammarchi, M, Mariazzi, S, Nebbia, G, and Sacerdoti, M

Subjects
Physics::General Physics, 530 Physics, Physics::Atomic and Molecular Clusters, Physics::Accelerator Physics, Physics::Atomic Physics, 7. Clean energy
Abstract

The goal of the AEgIS experiment is to measure the gravitational acceleration of antihydrogen – the simplest atom consisting entirely of antimatter – with the ultimate precision of 1%. We plan to verify the Weak Equivalence Principle (WEP), one of the fundamental laws of nature, with an antimatter beam. The experiment consists of a positron accumulator, an antiproton trap and a Stark accelerator in a solenoidal magnetic field to form and accelerate a pulsed beam of antihydrogen atoms towards a free-fall detector. The antihydrogen beam passes through a moir ́e deflectometer to measure the vertical displacement due to the gravitational force. A position and time sensitive hybrid detector registers the annihilation points of the antihydrogen atoms and their time-of-flight. The detection principle has been successfully tested with antiprotons and a miniature moir ́e deflectometer coupled to a nuclear emulsion detector.

17. Emulsion detectors for the antihydrogen detection in AEgIS

Author

Pistillo, C., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Špaček, M., Storey, J., Strojek, I., Subieta, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., Pistillo, C., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Špaček, M., Storey, J., Strojek, I., Subieta, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., and Zmeskal, J.

Abstract

The AEgIS experiment at CERN aims to perform the first direct measurement of gravitational interaction between matter and antimatter by measuring the deviation of a cold antihydrogen beam in the Earth gravitational field. The design of the experiment has been recently updated to include emulsion films as position sensitive detector. The submicrometric position accuracy of emulsions leads indeed to a significant improvement of the experimental sensitivity. We present results of preliminary tests and discuss perspectives for the final measurement.

18. Testing the Weak Equivalence Principle with an antimatter beam at CERN

Author

L. Ravelli, Patrick Nedelec, Davide Pagano, N. Pacifico, Sebastiano Mariazzi, Jiro Kawada, L. Di Noto, Johann Zmeskal, Luca Penasa, I. M. Strojek, S. Rosenberger, Massimo Caccia, Eberhard Widmann, V. Lagomarsino, Giovanni Consolati, H. Derking, Germano Bonomi, M. Sacerdoti, S. Haider, Romualdo Santoro, M. Subieta, Roberto S. Brusa, Ole Røhne, Paola Scampoli, James William Storey, M. Spacek, V. Petracek, M. Kimura, Marco Prevedelli, Claude Amsler, K. Chlouba, Alberto Rotondi, Tomoko Ariga, F. Prelz, D. Krasnicky, A. Demetrio, Heidi Sandaker, Alexey Dudarev, Giovanni Cerchiari, M. Oberthaler, Daniel Comparat, Adriano Fontana, Angela Gligorova, Chloé Malbrunot, L. Cabaret, P. Yzombard, Marco Giammarchi, Antonio Ereditato, T. Huse, Cristina Riccardi, G. Testera, J. Bremer, Z. Mazzotta, Simone Cialdi, Sandra Zavatarelli, E. Jordan, Felice Sorrentino, Alban Kellerbauer, A. S. Belov, Akitaka Ariga, Fabrizio Castelli, Michael Doser, H. Holmestad, Sebastian Gerber, P. Bräunig, S. N. Gninenko, C. Pistillo, Ruggero Caravita, Stefano Aghion, V. A. Matveev, Sebastian Lehner, Rafael Ferragut, G. Nebbia, Kimura, M, Aghion, S, Amsler, C, Ariga, A, Ariga, T, Belov, A, 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, Derking, H, Noto, L Di, Doser, M, Dudarev, A, Ereditato, A, Ferragut, R, Fontana, A, Gerber, S, Giammarchi, M, Gligorova, A, Gninenko, S, Haider, S, Holmestad, H, Huse, T, Jordan, E J, Kawada, J, Kellerbauer, A, Krasnicky, D, Lagomarsino, V, Lehner, S, 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, Riccardi, C, Røhne, O M, Rosenberger, S, Rotondi, A, Sacerdoti, M, Sandaker, H, Santoro, R, Scampoli, P, Sorrentino, F, Spacek, M, Strojek, I M, Storey, J, Subieta, M, Testera, G, Widmann, E, Yzombard, P, Zavatarelli, S, Zmeskal, J, Kimura, M., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., 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., Derking, H., Noto, L. Di, Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Holmestad, H., Huse, T., Jordan, E. J., Kawada, J., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Lehner, S., 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., Riccardi, C., Røhne, O. M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, Paola, Sorrentino, F., Spacek, M., Strojek, I. M., Storey, J., Subieta, M., Testera, G., 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
Photographic emulsions, Atoms, History, Particle physics, Physics::General Physics, 530 Physics, Nuclear emulsions, Gravitational acceleration, 7. Clean energy, Education, Nuclear physics, Physics and Astronomy (all), Positron, NUCLEAR-EMULSIONS, Gravitational accelerations, Physics and Astronomy (all), NUCLEAR-EMULSIONS, AEGIS EXPERIMENT, ANTIPROTONS, POSITRONIUM, SYSTEM, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Atomic and Molecular Clusters, Vertical displacements, Nuclear emulsion, Physics::Atomic Physics, particle physics, gravity, Antihydrogen, Gravitational forces, Stark accelerator, Physics, Large Hadron Collider, Emulsification, Tracking (position), Antihydrogen atoms, Fundamental laws, Weak equivalence principle, Detector, Computer Science Applications, Antiproton, Antimatter, Physics::Accelerator Physics, Particle Physics - Experiment
Abstract

International audience; The goal of the AEgIS experiment is to measure the gravitational acceleration of antihydrogen ? the simplest atom consisting entirely of antimatter ? with the ultimate precision of 1%. We plan to verify the Weak Equivalence Principle (WEP), one of the fundamental laws of nature, with an antimatter beam. The experiment consists of a positron accumulator, an antiproton trap and a Stark accelerator in a solenoidal magnetic field to form and accelerate a pulsed beam of antihydrogen atoms towards a free-fall detector. The antihydrogen beam passes through a moir? deflectometer to measure the vertical displacement due to the gravitational force. A position and time sensitive hybrid detector registers the annihilation points of the antihydrogen atoms and their time-of-flight. The detection principle has been successfully tested with antiprotons and a miniature moir? deflectometer coupled to a nuclear emulsion detector.

Published
2015
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19. Laser excitation of then=3level of positronium for antihydrogen production

Author

B. Rienäcker, Roberto S. Brusa, S. Vamosi, V. Petracek, Luca Penasa, I. L. Jernelv, Giovanni Cerchiari, L. Cabaret, Alberto Rotondi, T. Huse, L. Di Noto, Paola Scampoli, G. Nebbia, M. Sacerdoti, James William Storey, Sergei Gninenko, Claude Amsler, Marco Prevedelli, V. Lagomarsino, I. C. Tietje, Simone Cialdi, M. Kimura, Adriano Fontana, E. Jordan, Sebastian Gerber, Heidi Sandaker, K. Chlouba, Sebastiano Mariazzi, Giovanni Consolati, Germano Bonomi, A. Demetrio, F. Guatieri, Massimo Caccia, M. Spacek, L. Resch, Nicola Zurlo, C. Evans, P. Bräunig, J. Bremer, F. Prelz, Viktor Matveev, E. Widmann, C. Pistillo, Ruggero Caravita, Akitaka Ariga, Ola Kenji Forslund, Davide Pagano, Rafael Ferragut, S. Haider, Daniel Comparat, Alexey Dudarev, J. Fesel, Ole Røhne, Romualdo Santoro, Stefano Aghion, Marco Giammarchi, Sebastian Lehner, Z. Mazzotta, Felice Sorrentino, Alban Kellerbauer, Chloé Malbrunot, P. Lebrun, D. Krasnicky, L. Marx, Nicola Pacifico, P. Lansonneur, L. Ravelli, I. M. Strojek, T. Koettig, Lillian Smestad, H. Holmestad, Antonio Ereditato, Tomoko Ariga, G. Testera, Fabrizio Castelli, Patrick Nedelec, Michael Doser, Johann Zmeskal, J. Liberadzka, M. Oberthaler, Angela Gligorova, P. Yzombard, 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., Forslund, O. K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I. L., Jordan, E., Kellerbauer, A., Kimura, M., Koettig, 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, Marco, Ravelli, L., Resch, L., Rienäcker, B., 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., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., Zurlo, N., Prevedelli, M., Scampoli, Paola, 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
COLLISIONS, Atomic and Molecular Physics, and Optics, ANNIHILATION LIFETIME, SLOW POSITRONS, TRANSITION, PHYSICS, ANTIPROTONS, TRANSPORT, PLASMA, STATES, 530 Physics, Spectroscopy, particle physics, 01 natural sciences, 010305 fluids & plasmas, law.invention, Positronium, Nuclear physics, law, Atomic and Molecular Physics, 0103 physical sciences, Physics::Atomic and Molecular Clusters, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Physics::Atomic Physics, 010306 general physics, Antihydrogen, Physics, Plasma, Laser, Atomic and Molecular Physics, and Optics, Antiproton, and Optics, Atomic physics, ANNIHILATION LIFETIME, Particle Physics - Experiment, Excitation
Abstract

We demonstrate laser excitation of the n=3 state of positronium (Ps) in vacuum. A specially designed high-efficiency pulsed slow positron beam and single shot positronium annihilation lifetime spectroscopy were used to produce and detect Ps. Pulsed laser excitation of n=3 level at 205 nm was monitored via Ps photoionization induced by a second intense laser pulse at 1064 nm. About 15% of the overall positronium emitted in vacuum was excited to n=3 and photoionized. Saturation of both the n=3 excitation and the following photoionization was observed and is explained by a simple rate equation model. Scanning the laser frequency allowed us to extract the positronium transverse temperature related to the width of the Doppler-broadened line. Moreover, preliminary observation of excitation to Rydberg states (n = 15...17) using n=3 as intermediate level was observed, giving an independent confirmation of efficient excitation to the 33P state. We demonstrate the laser excitation of the n=3 state of positronium (Ps) in vacuum. A combination of a specially designed pulsed slow positron beam and a high-efficiency converter target was used to produce Ps. Its annihilation was recorded by single-shot positronium annihilation lifetime spectroscopy. Pulsed laser excitation of the n=3 level at a wavelength λ≈205 nm was monitored via Ps photoionization induced by a second intense laser pulse at λ=1064 nm. About 15% of the overall positronium emitted into vacuum was excited to n=3 and photoionized. Saturation of both the n=3 excitation and the following photoionization was observed and explained by a simple rate equation model. The positronium's transverse temperature was extracted by measuring the width of the Doppler-broadened absorption line. Moreover, excitation to Rydberg states n=15 and 16 using n=3 as the intermediate level was observed, giving an independent confirmation of excitation to the $3^{3}P$ state.

Published
2016
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20. Probing antimatter gravity – The AEGIS experiment at CERN

Author

Giovanni Consolati, G. Nebbia, Germano Bonomi, Tomoko Ariga, M. Spacek, Antonio Ereditato, Sebastiano Mariazzi, L. Smestad, Romualdo Santoro, L. Cabaret, Z. Mazzotta, Rafael Ferragut, Sandra Zavatarelli, T. Huse, Alban Kellerbauer, M. Oberthaler, Angela Gligorova, Sebastian Lehner, Patrick Nedelec, Johann Zmeskal, P. Lebrun, F. Prelz, C. Pistillo, T. Koettig, J. Liberadzka, Paola Scampoli, L. Ravelli, James William Storey, Ruggero Caravita, M. Kimura, H. Holmestad, V. A. Matveev, Claude Amsler, Marco Giammarchi, Davide Pagano, Felice Sorrentino, P. Lansonneur, Adriano Fontana, P. Yzombard, G. Testera, Daniel Comparat, I. M. Strojek, M. Sacerdoti, Fabrizio Castelli, D. Krasnický, S. Haider, Nicola Zurlo, A. Demetrio, Michael Doser, Marco Prevedelli, C. Evans, I. C. Tietje, Massimo Caccia, K. Chlouba, N. Pacifico, Stefano Aghion, Giovanni Cerchiari, Luca Penasa, Eberhard Widmann, Sebastian Gerber, P. Bräunig, V. Lagomarsino, F. Guatieri, B. Rienäcker, Roberto S. Brusa, Chloé Malbrunot, V. Petracek, Simone Cialdi, E. Jordan, L. Di Noto, J. Fesel, Akitaka Ariga, J. Bremer, Alexey Dudarev, Alberto Rotondi, Heidi Sandaker, Ole Røhne, 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), AEGIS, Bravina, L., Foka Y., Kabana S., 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., Zurlo, N., Røhne, O. M., and Strojek, I. M.

Subjects
Physics, Atom interferometer, Particle physics, Physics::General Physics, 010308 nuclear & particles physics, General Relativity and Cosmology, QC1-999, 01 natural sciences, Antiproton Decelerator, Nuclear physics, Physics and Astronomy (all), Physics and Astronomy. Antimatter. Antiprotons. Gravitational acceleration, Gravitational field, Deflection (physics), Antiproton, Antimatter, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Atomic Physics, Equivalence principle, gravity, antimatter, 010306 general physics, Antihydrogen
Abstract

International audience; 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
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21. Positron manipulation and positronium laser excitation in AEgIS

Author

Daniel Comparat, Sandra Zavatarelli, Marco Giammarchi, Laura Resch, Giovanni Consolati, Giovanni Cerchiari, Germano Bonomi, M. Sacerdoti, F. Sorrentino, M. Spacek, G. Nebbia, Angela Gligorova, P. Lebrun, Marco Prevedelli, M. Kimura, H. Holmestad, P. Lansonneur, S. Haider, Heidi Sandaker, I. C. Tietje, Paola Scampoli, F. Prelz, James William Storey, T. Kaltenbacher, G. Testera, Tomoko Ariga, N. Pacifico, A. Demetrio, Stefan Rosenberger, Viktor Matveev, C. Evans, Romualdo Santoro, L. Ravelli, Markus K. Oberthaler, Karl Chlouba, Luca Penasa, Fabrizio Castelli, Davide Pagano, Simone Cialdi, Claude Amsler, Michael Doser, E. Jordan, Daniel Krasnicky, Alberto Rotondi, C. Pistillo, Ruggero Caravita, Ola Kenji Forslund, Sebastiano Mariazzi, Patrick Nedelec, Lea Di Noto, Adriano Fontana, P. Yzombard, Johann Zmeskal, Sebastian Gerber, L. Cabaret, T. Huse, J. Liberadzka, F. Guatieri, B. Rienäcker, Roberto S. Brusa, S. Vamosi, V. Petracek, Sebastian Lehner, Izabela M Strojek, Antonio Ereditato, Alexey Dudarev, J. Fesel, S. Gninenko, Z. Mazzotta, Alban Kellerbauer, Chloé Malbrunot, Lisa Marx, Ole Røhne, Rafael Ferragut, Ine L Jernelv, Akitaka Ariga, P. Bräunig, J. Bremer, Stefano Aghion, Eberhard Widmann, V. Lagomarsino, Torsten Koetting, Massimo Caccia, Mariazzi, S., Caravita, R., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Braunig, 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., 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., Rienacker, 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., and Zmeskal, J.

Subjects
Positron, Positronium, Radiation, Materials Science (all), Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, law.invention, symbols.namesake, law, 0103 physical sciences, Physics::Atomic and Molecular Clusters, General Materials Science, Physics::Atomic Physics, 010306 general physics, Antihydrogen, Physics, Laser, Excited state, Antimatter, Rydberg formula, symbols, Atomic physics, Excitation
Abstract

Production of antihydrogen by using the charge exchange reaction, as proposed by AEgIS (Antimatter Experiment: gravity, Interferometry, Spectroscopy), requires the formation of a dense cloud of positronium atoms excited to Rydberg states. In this work, the recent advances in AEgIS towards this result are described. Namely, the manipulation of positrons to produce bunches containing more than 108 particles and the laser excitation of positronium to Rydberg states, using n=3 as intermediate level, are presented.

Published
2016

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

Author

K. Chlouba, N. Pacifico, Chloé Malbrunot, Daniel Comparat, Luca Penasa, Nicola Zurlo, L. Di Noto, M. Kimura, Ole Røhne, P. Lansonneur, G. Nebbia, D. Krasnický, L. Smestad, A. Demetrio, Giovanni Consolati, Germano Bonomi, Sebastiano Mariazzi, Stefano Aghion, C. Evans, Massimo Caccia, Lukas Tlustos, M. Campbell, M. Spacek, J. Alozy, Giovanni Cerchiari, P. Bräunig, Roberto S. Brusa, V. Petracek, J. Bremer, Adriano Fontana, Gerard Lawler, M. Oberthaler, Angela Gligorova, Eberhard Widmann, P. Yzombard, Sandra Zavatarelli, L. Cabaret, T. Huse, V. Lagomarsino, Akitaka Ariga, P. Lebrun, M. Sacerdoti, Alexey Dudarev, Romualdo Santoro, Marco Prevedelli, Marco Giammarchi, X. Llopart, J. Fesel, Rafael Ferragut, I. C. Tietje, Paola Scampoli, James William Storey, Z. Mazzotta, Antonio Ereditato, Patrick Nedelec, Alban Kellerbauer, Claude Amsler, L. Resch, Johann Zmeskal, L. Marx, Felice Sorrentino, S. Haider, F. Prelz, Sebastian Gerber, C. Pistillo, F. Guatieri, H. Holmestad, Ruggero Caravita, Tomoko Ariga, V. A. Matveev, L. Ravelli, Davide Pagano, G. Testera, I. M. Strojek, Fabrizio Castelli, Simone Cialdi, E. Jordan, Michael Doser, Heidi Sandaker, Alberto Rotondi, 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), 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., Zurlo, N., Brusa, R. S., Røhne, O. M., Scampoli, Paola, and Strojek, I. M.

Subjects
Antimatter, Silicon, Nuclear and High Energy Physics, AEgIS, Antiprotons, Detector, Timepix, Antiproton, 01 natural sciences, Nuclear physics, Instrumentation, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Physics, Large Hadron Collider, Annihilation, 010308 nuclear & particles physics, Antiproton Decelerator, Time of flight, Beamline, High Energy Physics::Experiment
Abstract

see paper for full list of authors; International audience; We present here the first results obtained employing the Timepix3 for the detection and tagging of annihilations of low energy antiprotons. The Timepix3 is a recently developed hybrid pixel detector with advanced Time-of-Arrival and Time-over-Threshold capabilities and has the potential of allowing precise kinetic energy measurements of low energy charged particles from their time of flight. The tagging of the characteristic antiproton annihilation signature, already studied by our group, is enabled by the high spatial and energy resolution of this detector. In this study we have used a new, dedicated, energy selection beamline (GRACE). The line is symbiotic to the AEgIS experiment at the CERN Antiproton Decelerator and is dedicated to detector tests and possibly antiproton physics experiments. We show how the high resolution of the Timepix3 on the Time-of-Arrival and Time-over-Threshold information allows for a precise 3D reconstruction of the annihilation prongs. The presented results point at the potential use of the Timepix3 in antimatter-research experiments where a precise and unambiguous tagging of antiproton annihilations is required.

Published
2016
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23. Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum

Author

C. Pistillo, M. Sacerdoti, Ruggero Caravita, Marco Prevedelli, I. C. Tietje, L. Cabaret, Ola Kenji Forslund, T. Huse, S. Rosenberger, Patrick Nedelec, V. A. Matveev, Adriano Fontana, Giovanni Cerchiari, Johann Zmeskal, Sandra Zavatarelli, J. Liberadzka, Simone Cialdi, E. Jordan, Marco Giammarchi, G. Nebbia, Fiodor Sorrentino, Akitaka Ariga, Daniel Comparat, M. Kimura, N. Pacifico, Z. Mazzotta, G. Testera, Giovanni Consolati, A. S. Belov, Germano Bonomi, Romualdo Santoro, Luca Penasa, D. Krasnicky, I. L. Jernelv, T. Kaltenbacher, M. Spacek, Alban Kellerbauer, A. Demetrio, Sebastiano Mariazzi, Fabrizio Castelli, Chloé Malbrunot, Heidi Sandaker, P. Lansonneur, Ole Røhne, C. Evans, Michael Doser, S. N. Gninenko, J. Fesel, M. Oberthaler, L. Marx, Angela Gligorova, H. Holmestad, Paola Scampoli, James William Storey, P. Bräunig, F. Prelz, P. Yzombard, Alberto Rotondi, Claude Amsler, T. Koetting, B. Rienäcker, Sebastian Gerber, Roberto S. Brusa, S. Vamosi, J. Bremer, V. Petracek, Antonio Ereditato, K. Chlouba, F. Guatieri, Sebastian Lehner, Alexey Dudarev, Stefano Aghion, S. Haider, P. Lebrun, Eberhard Widmann, V. Lagomarsino, L. Di Noto, L. Ravelli, Davide Pagano, Tomoko Ariga, I. M. Strojek, Massimo Caccia, 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, Paola, Sorrentino, F., Spacek, M., Storey, J., Strojek, I. M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., Belov, A.S., Braunig, P., Brusa, R.S., Forslund, O.K., Jernelv, I.L., Rienacker, B., Rohne, O.M., Scampoli, P., Strojek, I.M., 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, Bunching, Positron, Positronium, Instrumentation, Nuclear and High Energy Physics, 530 Physics, Astrophysics::High Energy Astrophysical Phenomena, Porous silicon, Positron, Positronium, Bunching, Magnetic field, Full width at half maximum, Bunches, Physics in General, Physics::Accelerator Physics, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Positron emission, Atomic physics, Spectroscopy
Abstract

International audience; We describe a system designed to re-bunch positron pulses delivered by an accumulator supplied by a positron source and a Surko-trap. Positron pulses from the accumulator are magnetically guided in a 0.085 T field and are injected into a region free of magnetic fields through a μμ-metal field terminator. Here positrons are temporally compressed, electrostatically guided and accelerated towards a porous silicon target for the production and emission of positronium into vacuum. Positrons are focused in a spot of less than 4 mm FWTM in bunches of ∼8 ns FWHM. Emission of positronium into the vacuum is shown by single shot positron annihilation lifetime spectroscopy.

Published
2015
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24. Emulsion detectors for the antihydrogen detection in AEgIS

Author

G. Testera, Ole Røhne, S. N. Gninenko, Fabrizio Castelli, M. Subieta, Michael Doser, M. C. Simon, C. Pistillo, Paola Scampoli, James William Storey, Claude Amsler, Giovanni Consolati, Ruggero Caravita, Patrick Nedelec, Akitaka Ariga, H. Holmestad, Germano Bonomi, K. Chlouba, Johann Zmeskal, M. Spacek, L. Cabaret, G. Nebbia, T. Huse, Chloé Malbrunot, P. Bräunig, S. Rosenberger, H. Derking, F. Prelz, J. Bremer, Marco Giammarchi, V. A. Matveev, Sebastiano Mariazzi, Alexey Dudarev, Rafael Ferragut, Daniel Comparat, Z. Mazzotta, Alban Kellerbauer, Sebastian Gerber, Stefano Aghion, Simone Cialdi, Sebastian Lehner, S. D. Hogan, E. Jordan, A. S. Belov, S. Haider, N. Pacifico, M. Oberthaler, Luca Penasa, Angela Gligorova, P. Yzombard, Antonio Ereditato, Cristina Riccardi, Tomoko Ariga, L. Ravelli, I. M. Strojek, Massimo Caccia, V. Petráček, Eberhard Widmann, V. Lagomarsino, Jiro Kawada, L. Di Noto, Sandra Zavatarelli, Marco Prevedelli, Romualdo Santoro, M. Kimura, D. Krasnický, A. Demetrio, Heidi Sandaker, Alberto Rotondi, Andrea Fontana, Giovanni Cerchiari, R. S. Brusa, Pistillo, C, Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., 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., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E. J., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nédélec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petráček, V., Prelz, F., Prevedelli, M., Ravelli, L., Riccardi, C., Røhne, O., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, Paola, Simon, M., Špaček, M., Storey, J., Strojek, I. M., Subieta, M., Testera, G., 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
Nuclear and High Energy Physics, Physics::General Physics, Antimatter, Atomic and Molecular Physics, and Optic, 530 Physics, Physics::Instrumentation and Detectors, Condensed Matter Physic, 01 natural sciences, Nuclear physics, Gravitational field, Atomic and Molecular Physics, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Physical and Theoretical Chemistry, 010306 general physics, Antihydrogen, Nuclear and High Energy Physic, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Emulsion, Detector, Gravitational interaction, Emulsions, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, and Optics, Beam (structure)
Abstract

see paper for full list of authors; International audience; The AEgIS experiment at CERN aims to perform the first direct measurement of gravitational interaction between matter and antimatter by measuring the deviation of a cold antihydrogen beam in the Earth gravitational field. The design of the experiment has been recently updated to include emulsion films as position sensitive detector. The submicrometric position accuracy of emulsions leads indeed to a significant improvement of the experimental sensitivity. We present results of preliminary tests and discuss perspectives for the final measurement.

Published
2015
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25. Particle tracking at cryogenic temperatures: the Fast Annihilation Cryogenic Tracking (FACT) detector for the AEgIS antimatter gravity experiment

Author

Sandra Zavatarelli, Tomoko Ariga, Andrea Fontana, Giovanni Consolati, Marco Prevedelli, Chloé Malbrunot, Germano Bonomi, L. Ravelli, M. Spacek, G. Nebbia, S. N. Gninenko, S. Haider, Sebastiano Mariazzi, Simone Cialdi, J. Bremer, L. Cabaret, I. M. Strojek, T. Huse, E. Jordan, A. S. Belov, Ole Røhne, Sebastian Gerber, M. Kimura, Markus K. Oberthaler, S. D. Hogan, Heidi Sandaker, Rafael Ferragut, P. Scampoli, C. Pistillo, F. Prelz, Marco Giammarchi, Ruggero Caravita, Giovanni Cerchiari, Alberto Rotondi, K. Chlouba, Romualdo Santoro, Z. Mazzotta, Akitaka Ariga, James William Storey, Alban Kellerbauer, Daniel Comparat, Alexey Dudarev, V. A. Matveev, Claude Amsler, R. Vaccarone, Patrick Nedelec, Johann Zmeskal, H. Derking, M. Subieta, Angela Gligorova, P. Yzombard, N. Pacifico, Stefano Aghion, R. S. Brusa, Luca Penasa, P. Bräunig, Alice Magnani, Sebastian Lehner, Eberhard Widmann, V. Lagomarsino, Massimo Caccia, V. Petráček, Jiro Kawada, L. Di Noto, M. C. Simon, S. Rosenberger, H. Holmestad, D. Krasnicky, Antonio Ereditato, G. Testera, Cristina Riccardi, Fabrizio Castelli, Michael Doser, Storey, J., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Belov, A., Bonomi, G., Braunig, P., Bremer, J., Brusa, R., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Derking, H., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Haider, S., Hogan, S., Holmestad, H., Huse, T., Jordan, E. J., Kawada, J., Kellerbauer, A., Kimura, M., Krasnicky, D., Lagomarsino, V., Lehner, S., Magnani, A., 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., Riccardi, C., Rohne, O. M., Rosenberger, S., Rotondi, A., Sandaker, H., Santoro, R., Scampoli, P., Simon, M., Spacek, M., Strojek, I. M., Subieta, M., Testera, G., Vaccarone, R., Widmann, E., Yzombard, P., Zavatarelli, S., Zmeskal, J., 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
Atom interferometer, gas and liquid scintillators), Physics::Instrumentation and Detectors, 530 Physics, Context (language use), Cryogenics, Tracking (particle physics), Nuclear physics, Particle tracking detectors, Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators), Silicon photomultiplier, Physics::Atomic and Molecular Clusters, Physics::Atomic Physics, Detectors and Experimental Techniques, Antihydrogen, Instrumentation, Mathematical Physics, Physics, Detector, antimatter. scintillating fibers, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Particle tracking detector, antimatter. scintillating fibers, silicon photomultipliers, scintillation and light emission processes (solid, Scintillators, Antimatter, silicon photomultipliers
Abstract

see paper for full list of authors; International audience; The AEgIS experiment is an interdisciplinary collaboration between atomic, plasma and particle physicists, with the scientific goal of performing the first precision measurement of the Earth's gravitational acceleration on antimatter. The principle of the experiment is as follows: cold antihydrogen atoms are synthesized in a Penning-Malmberg trap and are Stark accelerated towards a moiré deflectometer, the classical counterpart of an atom interferometer, and annihilate on a position sensitive detector. Crucial to the success of the experiment is an antihydrogen detector that will be used to demonstrate the production of antihydrogen and also to measure the temperature of the anti-atoms and the creation of a beam. The operating requirements for the detector are very challenging: it must operate at close to 4 K inside a 1 T solenoid magnetic field and identify the annihilation of the antihydrogen atoms that are produced during the 1 μs period of antihydrogen production. Our solution—called the FACT detector—is based on a novel multi-layer scintillating fiber tracker with SiPM readout and off the shelf FPGA based readout system. This talk will present the design of the FACT detector and detail the operation of the detector in the context of the AEgIS experiment.

Published
2015
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