Skip to main content
Log in

The AEgIS experiment

  • Published:
Hyperfine Interactions Aims and scope Submit manuscript

Abstract

The AEgIS experiment is presently almost completely installed at CERN. It is currently taking data with antiprotons, electrons and positrons. The apparatus is designed to form a cold, pulsed beam of antihydrogen to measure the Earth’s gravitational acceleration g on antimatter and to perform spectroscopy measurements. This paper describes the main features of the apparatus and shows a selected review of some achieved results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Wagner, T.A., et al.: Torsion-balance tests of the weak equivalence principle. Class. Quantum Grav. 29, 184002 (2012)

    Article  ADS  Google Scholar 

  2. Tasson, J.D.: Gravity effects on antimatter in the standard-model extension. Int. J. Mod. Phys. 30, 1460273 (2014)

    Google Scholar 

  3. Drobychev, G., et al. (AEgIS Collaboration): Proposal for the AEGIS experiment at the CERN antiproton decelerator (Antimatter Experiment: Gravity, Interferometry, Spectroscopy). SPSC-P-334; CERN-SPSC-2007-017 (2007)

  4. Mariazzi, S., et al.: Positronium cooling and emission in vacuum from nanochannels at cryogenic temperature. Phys. Rev. Lett. 104, 243401 (2010)

    Article  ADS  Google Scholar 

  5. Mariazzi, S., et al.: High positronium yield and emission into the vacuum from oxidized tunable nanochannels in silicon. Phys. Rev. B 81, 235418 (2010)

    Article  ADS  Google Scholar 

  6. Testera, G., et al. (AEgIS Collaboration): Formation of a cold antihydrogen beam in AEGIS for gravity measurements. AIP Conf. Proc. 1037, 5 (2008)

    Article  ADS  Google Scholar 

  7. Aghion, S., et al. (AEgIS Collaboration): Prospects for measuring the gravitational free-fall of antihydrogen with emulsion detectors. J. Instrum. 8, P08013 (2013)

    Article  Google Scholar 

  8. Di Domizio, S., et al.: Toward sub-Kelvin resistive cooling and non destructive detection of trapped non-neutral electron plasma, accepted by JINST

  9. Kellerbauer, A., Walz, J.: A novel cooling scheme for antiprotons. New J. Phys. 8, 45 (2006)

    Article  ADS  Google Scholar 

  10. Surko, C.M., et al.: Positron plasma in the laboratory. Phys. Rev. Lett. 62, 901 (1989)

    Article  ADS  Google Scholar 

  11. Krasnický, D., et al. (AEgIS Collaboration): AEgIS experiment commissioning at CERN. AIP Conf. Proc. 1521, 144 (2013)

    Article  ADS  Google Scholar 

  12. Canali, C., et al.: Off-axial plasma displacement suitable for antihydrogen production in AEgIS experiment. EPJD 65(3), 499 (2011)

    Article  ADS  Google Scholar 

  13. Cialdi, S., et al.: Efficient two-step positronium laser excitation to Rydberg levels. NIM B 269, 1527 (2011)

    Article  ADS  Google Scholar 

  14. Aghion, S., et al. (AEgIS Collaboration): Detection of low energy antiproton annihilations in a segmented silicon detector. JINST 9, P06020 (2014)

    Article  ADS  Google Scholar 

  15. Aghion, S., et al. (AEgIS Collaboration): A moiré deflectometer for antimatter. Nat. Commun. 5, 4538 (2014)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Consortia

Corresponding author

Correspondence to G. Testera.

Additional information

Proceedings of the International Conference on Exotic Atoms and Related Topics (EXA 2014), Vienna, Austria, 15–19 September 2014.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Testera, G., Aghion, S., Amsler, C. et al. The AEgIS experiment. Hyperfine Interact 233, 13–20 (2015). https://doi.org/10.1007/s10751-015-1165-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10751-015-1165-5

Keywords

Navigation