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Synthesis of Cold Antihydrogen in a Cusp Trap

Y. Enomoto, N. Kuroda, K. Michishio, C. H. Kim, H. Higaki, Y. Nagata, Y. Kanai, H. A. Torii, M. Corradini, M. Leali, E. Lodi-Rizzini, V. Mascagna, L. Venturelli, N. Zurlo, K. Fujii, M. Ohtsuka, K. Tanaka, H. Imao, Y. Nagashima, Y. Matsuda, B. Juhász, A. Mohri, and Y. Yamazaki
Phys. Rev. Lett. 105, 243401 – Published 7 December 2010
Physics logo See Synopsis: Progress toward an antihydrogen beam

Abstract

We report here the first successful synthesis of cold antihydrogen atoms employing a cusp trap, which consists of a superconducting anti-Helmholtz coil and a stack of multiple ring electrodes. This success opens a new path to make a stringent test of the CPT symmetry via high precision microwave spectroscopy of ground-state hyperfine transitions of antihydrogen atoms.

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  • Received 13 October 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.243401

© 2010 The American Physical Society

Synopsis

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Progress toward an antihydrogen beam

Published 7 December 2010

Cold antihydrogen has been synthesized in a setup that could lead to an antihydrogen beam suitable for precision CPT tests.

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Authors & Affiliations

Y. Enomoto1, N. Kuroda2, K. Michishio3, C. H. Kim2, H. Higaki4, Y. Nagata1, Y. Kanai1, H. A. Torii2, M. Corradini5, M. Leali5, E. Lodi-Rizzini5, V. Mascagna5, L. Venturelli5, N. Zurlo5, K. Fujii2, M. Ohtsuka2, K. Tanaka2, H. Imao6, Y. Nagashima3, Y. Matsuda2, B. Juhász7, A. Mohri1, and Y. Yamazaki1,2

  • 1RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan
  • 2Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
  • 3Department of Physics, Tokyo University of Science, Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
  • 4Graduate School of Advanced Sciences of Matter, Hiroshima University, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
  • 5Dipartimento di Chimica e Fisica per l’Ingegneria e per i Materiali, Università di Brescia & Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, 25133 Brescia, Italy
  • 6RIKEN Nishina Center for Accelerator Based Science, Hirosawa, Wako, Saitama 351-0198, Japan
  • 7Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, 1090 Wien, Austria

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Issue

Vol. 105, Iss. 24 — 10 December 2010

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