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Events in Physics
Title: How To Create And Trap Anti-Hydrogen    (Colloquia)
Start Date: 02/14/2011
Time: 4:30 pm
Location: 1 LeConte Hall
Speaker: Joel Fajans
Affiliation: Professor of Physics, UC Berkeley
Contact Person: Sarah Wittmer   (510) 642-3034

Until recently, all antihydrogen atoms synthesized in the laboratory were untrapped, and annihilated on the apparatus walls in less than ~100 microseconds.  In 2010, antihydrogen atoms were trapped for the first time by the ALPHA collaboration at CERN.  After briefly describing the uses envisioned for trapped antihydrogen, I will discuss the techniques developed to trap the antihydrogen, with particular emphasis on the steps necessary to produce antihydrogen atoms with energies of less than 0.05meV (our trap depth) from the pool of antiprotons delivered to us by CERN at energies near 5MeV.