Stacking of cold antiprotons

Gabrielse, G.; Speck, A.; Tan, J. N.; Wessels, M.; Grzonka, D.; Sefzick, N. Y.; Hessels, E. A.; Bowden, N. S.; Oelert, W.; Schepers, G.; Storry, C. H.; Walz, J.; Haensch, T. W.; Oxley, P.; Pittner, H.

doi:10.1016/S0370-2693(02)02850-2

Journal Article

Stacking of cold antiprotons

Gabrielse, G. ; Bowden, N. S. ; Oxley, P. ; Speck, A. ; Storry, C. H. ; Tan, J. N. ; Wessels, M. ; Grzonka, D.FZJ* ; Oelert, W.FZJ* ; Schepers, G.FZJ* ; Sefzick, N. Y.FZJ* ; Walz, J. ; Pittner, H. ; Haensch, T. W. ; Hessels, E. A.

2002
North-Holland Publ. Amsterdam

Physics letters / B 548, 140 (2002) [10.1016/S0370-2693(02)02850-2]

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Please use a persistent id in citations: http://hdl.handle.net/2128/22951 doi:10.1016/S0370-2693(02)02850-2

Abstract: The stacking of cold antiprotons is currently the only way to accumulate the large numbers of the cold antiprotons that are needed for low energy experiments. Both the largest possible number and the lowest possible temperature are desired, especially for the production and study of cold antihydrogen. The antiprotons accumulated in our particle trap have an energy 10(10) times lower than the energy of those delivered by CERN's Antiprotons Decelerator (AD). The number accumulated (more than 0.4 million in this demonstration) is linear in the number of accepted high energy antiproton pulses (32 in this demonstration). Accumulation efficiencies and losses are measured and discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

Keyword(s): anti-p: accumulator ; injection: stacking ; beam cooling: electron cooling ; beam: temperature ; hydrogen: antimatter ; CERN Lab