First Laser-Controlled Antihydrogen Production

C. H. Storry, A. Speck, D. Le Sage, N. Guise, G. Gabrielse, D. Grzonka, W. Oelert, G. Schepers, T. Sefzick, H. Pittner, M. Herrmann, J. Walz, T. W. Hänsch, D. Comeau, and E. A. Hessels (ATRAP Collaboration)
Phys. Rev. Lett. 93, 263401 – Published 21 December 2004

Abstract

Lasers are used for the first time to control the production of antihydrogen (H¯). Sequential, resonant charge exchange collisions are involved in a method that is very different than the only other method used so far—producing slow H¯ during positron cooling of antiprotons in a nested Penning trap. Two attractive features are that the laser frequencies determine the H¯ binding energy, and that the production of extremely cold H¯ should be possible in principle—likely close to what is needed for confinement in a trap, as needed for precise laser spectroscopy.

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  • Received 17 August 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.263401

©2004 American Physical Society

Authors & Affiliations

C. H. Storry1, A. Speck1, D. Le Sage1, N. Guise1, G. Gabrielse1,*, D. Grzonka2, W. Oelert2, G. Schepers2, T. Sefzick2, H. Pittner3, M. Herrmann3, J. Walz3, T. W. Hänsch3,4, D. Comeau5, and E. A. Hessels5 (ATRAP Collaboration)

  • 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
  • 2IKP, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
  • 3Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
  • 4Ludwig-Maximilians-Universität München, Schellingstrasse 4/III, 80799 München, Germany
  • 5York University, Department of Physics and Astronomy, Toronto, Ontario M3J 1P3, Canada

  • *ATRAP Spokesperson. Email address: gabrielse@physics.harvard.edu

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Issue

Vol. 93, Iss. 26 — 31 December 2004

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