11-15 February 2013
Vienna University of Technology
Europe/Vienna timezone

Antihydrogen Detection in the ALPHA -Experiment

15 Feb 2013, 10:15
Vienna University of Technology

Vienna University of Technology

Gußhausstraße 25-29, 1040 Wien (Vienna), Austria
Talk Plenary 4


Petteri Pusa (University of Liverpool (GB))


The principal aim of the ALPHA experiment at is to trap cold atomic antihydrogen and study it’s properties, and, ultimately, perform precision comparison between hydrogen and antihydrogen atomic spectra. Recently, several important milestones have been achieved, including long confinement of antihydrogen atoms and the first spectroscopic measurements done on the antihydrogen atoms. The main experimental tool for the antihydrogen detection in the experiment is the ALPHA silicon vertex detector. The detector consists of three concentric barrels of 144 double sided silicon sensors and provides information on the time evolution of antiproton plasmas and individual annihilation events. Characteristics of the detector will be given along with the current status of the experiment.
quote your primary experiment ALPHA (CERN)

Primary author

Petteri Pusa (University of Liverpool (GB))


Mr David Seddon (University of Liverpool) Mr Jim Thornhill (University of Liverpool) Mr Joseph Mckenna (University of Liverpool) Prof. Paul Nolan (University of Liverpool) Mr Wells David (University of Liverpool)

Presentation Materials