Accession Number : ADP012494


Title :   Cold Antimatter Plasmas, and Aspirations for Cold Antihydrogen


Descriptive Note : Final rept. 15 Apr 2001-31 Mar 2002


Corporate Author : HARVARD UNIV CAMBRIDGE MA DEPT OF PHYSICS


Personal Author(s) : Gabrielse, G ; Tan, J N ; Bowden, N S ; Oxley, P ; Storry, C H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/p012494.pdf


Report Date : 24 Jun 2002


Pagination or Media Count : 12


Abstract : Only our ATRAP Collaboration is yet able to accumulate and store 4.2 K antiprotons and positrons. The antiprotons come initially from the new Antiproton Decel- erator facility at CERN. Good control of such cold antimatter plasmas is key to aspirations to produce and study antihydrogen atoms that are cold enough to confine by their magnetic moments. In the closest approach to cold antihydrogen realized to date the cold positrons have been used to cool antiprotons the first time that positron cooling has ever been oh- served. The Penning-Ioffe trap, one possibility for simultaneously confining antihydrogen and the cold ingredients from which it is formed, is introduced and discussed.


Descriptors :   *PLASMAS(PHYSICS) , *POSITRONS , *ANTIPROTONS , *ANTIPARTICLES , LOW TEMPERATURE , SYMPOSIA , TRAPPING(CHARGED PARTICLES) , COOLING , GERMANY , DECELERATION , ELEMENTARY PARTICLES , MAGNETIC MOMENTS , SWITZERLAND


Subject Categories : Nuclear Physics & Elementary Particle Physics
      Plasma Physics and Magnetohydrodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE