Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN

Details Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN

2008-05-27

arxiv.org/abs/0805.4082v1

AIP Conf.Proc.1037:208-220,2008

Physics

High Energy Physics

High Energy Physics - Experiment

Invited talk at Pbar08 - Workshop on Cold Antimatter Plasmas and Application to Fundamental Physics, Okinawa, Japan, 2008. 14

Scientific paper

10.1063/1.2977840

We discuss aspects of antihydrogen studies, that relate to particle physics ideas and techniques, within the context of the ALPHA experiment at CERN's Antiproton Decelerator facility. We review the fundamental physics motivations for antihydrogen studies, and their potential physics reach. We argue that initial spectroscopy measurements, once antihydrogen is trapped, could provide competitive tests of CPT, possibly probing physics at the Planck Scale. We discuss some of the particle detection techniques used in ALPHA. Preliminary results from commissioning studies of a partial system of the ALPHA Si vertex detector are presented, the results of which highlight the power of annihilation vertex detection capability in antihydrogen studies.

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