Antimatter Plasmas in a Multipole Trap for Antihydrogen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300 (United States)
- Department of Physics, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21945-970 (Brazil)
- Department of Physics, University of Wales Swansea, Swansea SA2 8PP (United Kingdom)
We have demonstrated storage of plasmas of the charged constituents of the antihydrogen atom, antiprotons and positrons, in a Penning trap surrounded by a minimum-B magnetic trap designed for holding neutral antiatoms. The neutral trap comprises a superconducting octupole and two superconducting, solenoidal mirror coils. We have measured the storage lifetimes of antiproton and positron plasmas in the combined Penning-neutral trap, and compared these to lifetimes without the neutral trap fields. The magnetic well depth was 0.6 T, deep enough to trap ground state antihydrogen atoms of up to about 0.4 K in temperature. We have demonstrated that both particle species can be stored for times long enough to permit antihydrogen production and trapping studies.
- OSTI ID:
- 20861599
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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