出典:Wikipedia
出典:『Wikipedia』 (2011/04/02 19:54 UTC 版)
The NA58 experiment, or COMPASS (Common Muon and Proton Apparatus for Structure and Spectroscopy) is a fixed-target particle physics experiment at the Super Proton Synchrotron, a particle accelerator at the European Organization for Nuclear Research (CERN). It is a two-level magnetic spectrometer with calorimeters in both levels and particle identification in the first level.