Probing antimatter gravity - The AEGIS experiment at CERN

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

Research output: Contribution to journalConference article

1 Citation (Scopus)

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.

Original languageEnglish
Article number02016
JournalEPJ Web of Conferences
Volume126
DOIs
Publication statusPublished - Nov 4 2016
Event4th International Conference on New Frontiers in Physics, ICNFP 2015 - Crete, Greece
Duration: Aug 23 2015Aug 30 2015

Fingerprint

antimatter
antiprotons
gravitation
deflection
brakes (for arresting motion)
antiparticles
positronium
axioms
charge exchange
gravitational fields
equivalence
relativity
interferometers
gratings
detectors
atoms
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kellerbauer, A., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., ... Zurlo, N. (2016). Probing antimatter gravity - The AEGIS experiment at CERN. EPJ Web of Conferences, 126, [02016]. https://doi.org/10.1051/epjconf/201612602016

Probing antimatter gravity - The AEGIS experiment at CERN. / 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.

In: EPJ Web of Conferences, Vol. 126, 02016, 04.11.2016.

Research output: Contribution to journalConference article

Kellerbauer, A, Aghion, S, Amsler, C, Ariga, A, Ariga, T, Bonomi, G, Bräunig, P, Bremer, J, Brusa, RS, 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, OM, Rotondi, A, Sacerdoti, M, Sandaker, H, Santoro, R, Scampoli, P, Smestad, L, Sorrentino, F, Špaček, M, Storey, J, Strojek, IM, Testera, G, Tietje, I, Widmann, E, Yzombard, P, Zavatarelli, S, Zmeskal, J & Zurlo, N 2016, 'Probing antimatter gravity - The AEGIS experiment at CERN', EPJ Web of Conferences, vol. 126, 02016. https://doi.org/10.1051/epjconf/201612602016
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. / Probing antimatter gravity - The AEGIS experiment at CERN. In: EPJ Web of Conferences. 2016 ; Vol. 126.
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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 moir{\'e} 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.",
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T1 - Probing antimatter gravity - The AEGIS experiment at CERN

AU - Kellerbauer, A.

AU - Aghion, S.

AU - Amsler, C.

AU - Ariga, A.

AU - Ariga, T.

AU - Bonomi, G.

AU - Bräunig, P.

AU - Bremer, J.

AU - Brusa, R. S.

AU - Cabaret, L.

AU - Caccia, M.

AU - Caravita, R.

AU - Castelli, F.

AU - Cerchiari, G.

AU - Chlouba, K.

AU - Cialdi, S.

AU - Comparat, D.

AU - Consolati, G.

AU - Demetrio, A.

AU - Di Noto, L.

AU - Doser, M.

AU - Dudarev, A.

AU - Ereditato, A.

AU - Evans, C.

AU - Ferragut, R.

AU - Fesel, J.

AU - Fontana, A.

AU - Gerber, S.

AU - Giammarchi, M.

AU - Gligorova, A.

AU - Guatieri, F.

AU - Haider, S.

AU - Holmestad, H.

AU - Huse, T.

AU - Jordan, E.

AU - Kimura, M.

AU - Koettig, T.

AU - Krasnický, D.

AU - Lagomarsino, V.

AU - Lansonneur, P.

AU - Lebrun, P.

AU - Lehner, S.

AU - Liberadzka, J.

AU - Malbrunot, C.

AU - Mariazzi, S.

AU - Matveev, V.

AU - Mazzotta, Z.

AU - Nebbia, G.

AU - Nédélec, P.

AU - Oberthaler, M.

AU - Pacifico, N.

AU - Pagano, D.

AU - Penasa, L.

AU - Petráček, V.

AU - Pistillo, C.

AU - Prelz, F.

AU - Prevedelli, M.

AU - Ravelli, L.

AU - Rienäcker, B.

AU - Røhne, O. M.

AU - Rotondi, A.

AU - Sacerdoti, M.

AU - Sandaker, H.

AU - Santoro, R.

AU - Scampoli, P.

AU - Smestad, L.

AU - Sorrentino, F.

AU - Špaček, M.

AU - Storey, J.

AU - Strojek, I. M.

AU - Testera, G.

AU - Tietje, I.

AU - Widmann, E.

AU - Yzombard, P.

AU - Zavatarelli, S.

AU - Zmeskal, J.

AU - Zurlo, N.

PY - 2016/11/4

Y1 - 2016/11/4

N2 - 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.

AB - 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.

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