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  Positronium for Antihydrogen Production in the AEGIS Experiment

Consolati, G., Aghion, S., Amsler, C., Bonomi, G., Brusa, R. S., Caccia, M., et al. (2017). Positronium for Antihydrogen Production in the AEGIS Experiment. Acta Physica Polonica A, 132(5), 1443-1449. doi:10.12693/APhysPolA.132.1443.

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Consolati, G.1, Author
Aghion, S.1, Author
Amsler, C.1, Author
Bonomi, G.1, Author
Brusa, R. S.1, Author
Caccia, M.1, Author
Caravita, R.1, Author
Castelli, F.1, Author
Cerchiari, G.2, Author           
Comparat, D.1, Author
Demetrio, A.1, Author
Di Noto, L.1, Author
Doser, M.1, Author
Evans, C.1, Author
Fani, M.1, Author
Ferragut, R.1, Author
Fesel, J.1, Author
Fontana, A.1, Author
Gerber, S.1, Author
Giammarchi, M.1, Author
Gligorova, A.1, AuthorGuatieri, F.1, AuthorHaider, S.1, AuthorHinterberger, A.1, AuthorHolmestad, H.1, AuthorKellerbauer, Alban2, Author           Khalidova, O.1, AuthorKrasnicky, D.1, AuthorLagomarsino, V.1, AuthorLansonneur, P.1, AuthorLebrun, P.1, AuthorMalbrunot, C.1, AuthorMariazzi, S.1, AuthorMarton, J.1, AuthorMatveev, V.1, AuthorMazzotta, Z.1, AuthorMueller, S. R.1, AuthorNebbia, G.1, AuthorNedelec, P.1, AuthorOberthaler, M.1, AuthorPacifico, N.1, AuthorPagano, D.1, AuthorPenasa, L.1, AuthorPetracek, V.1, AuthorPrelz, F.1, AuthorPrevedelli, M.1, AuthorRavelli, L.1, AuthorRienaecker, B.1, AuthorRobert, J.1, AuthorRohne, O. M.1, AuthorRotondi, A.1, AuthorSandaker, H.1, AuthorSantoro, R.1, AuthorSmestad, L.1, AuthorSorrentino, F.1, AuthorTestera, G.1, AuthorTietje, I. C.1, AuthorWidmann, E.1, AuthorYzombard, P.1, AuthorZimmer, C.1, AuthorZmeskal, J.1, AuthorZurlo, N.1, Author more..
1external, ou_persistent22              
2Alban Kellerbauer - Emmy Noether Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907551              


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 Abstract: The primary goal of the Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEGIS) collaboration is to measure for the first time precisely the gravitational acceleration of antihydrogen, (H) over bar, a fundamental issue of contemporary physics, using a beam of antiatoms. Indeed, although indirect arguments have been raised against a different acceleration of antimatter with respect to matter, nevertheless some attempts to formulate quantum theories of gravity, or to unify gravity with the other forces, consider the possibility of a non-identical gravitational interaction between matter and antimatter. We plan to generate (H) over tilde through a charge-exchange reaction between excited Ps and antiprotons coming from the Antiproton Decelerator facility at CERN. It offers the advantage to produce sufficiently cold antihydrogen to make feasible a measurement of gravitational acceleration with reasonable uncertainty (of the order of a few percent). Since the cross-section of the above reaction increases with n(4), n being the principal quantum number of Ps, it is essential to generate Ps in a highly excited (Rydberg) state. This will occur by means of two laser excitations of Ps emitted from a nanoporous silica target: a first UV laser (at 205 nm) will bring Ps from the ground to the n = 3 state; a second laser pulse (tunable in the range 1650-1700 nm) will further excite Ps to the Rydberg state.


 Dates: 2017
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.12693/APhysPolA.132.1443
 Degree: -



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Title: Acta Physica Polonica A
Source Genre: Journal
Publ. Info: Warszawa : Państwowe Wydawnictwo Naukowe
Pages: - Volume / Issue: 132 (5) Sequence Number: - Start / End Page: 1443 - 1449 Identifier: ISSN: 0587-4246
CoNE: https://pure.mpg.de/cone/journals/resource/954925532977