• Featured in Physics

Confinement of a Large Number of Antiprotons and Production of an Ultraslow Antiproton Beam

N. Kuroda, H. A. Torii, K. Yoshiki Franzen, Z. Wang, S. Yoneda, M. Inoue, M. Hori, B. Juhász, D. Horváth, H. Higaki, A. Mohri, J. Eades, K. Komaki, and Y. Yamazaki
Phys. Rev. Lett. 94, 023401 – Published 18 January 2005
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Abstract

We have used a radio frequency quadrupole decelerator to decelerate antiprotons emerging from the CERN Antiproton Decelerator from MeV- to keV-scale energy, and collected five decelerated pulses in a multiring trap. Some 5×106 antiprotons were stacked in this way. Cooling of the trapped antiprotons by a simultaneously trapped electron plasma was studied nondestructively via shifts in plasma mode frequencies. We have also demonstrated the first step in extracting a 10–500 eV antiproton beam from the trap.

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  • Received 12 May 2003

DOI:https://doi.org/10.1103/PhysRevLett.94.023401

©2005 American Physical Society

Authors & Affiliations

N. Kuroda1,2, H. A. Torii1, K. Yoshiki Franzen2,*, Z. Wang1, S. Yoneda1, M. Inoue1, M. Hori3, B. Juhász4, D. Horváth5, H. Higaki6, A. Mohri2, J. Eades7, K. Komaki1, and Y. Yamazaki1,2

  • 1Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
  • 2Atomic Physics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
  • 3CERN, CH-1211 Genève 23, Switzerland
  • 4Institute of Nuclear Research of the Hungarian Academy of Science, H-4001 Debrecen, Hungary
  • 5KFKI Research Institute of Particle and Nuclear Physics, H-1525 Budapest, Hungary
  • 6Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
  • 7Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

  • *Present address: Department of Physics, University of Florida, Gainesville, FL 32611, USA.

See Also

The Most Antimatter

Don Monroe
Phys. Rev. Focus 15, 2 (2005)

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Vol. 94, Iss. 2 — 21 January 2005

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