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ZEUS was a particle detector that operated on the HERA (''Hadron Elektron Ring Anlage'') particle accelerator at DESY, Hamburg. It began running together with HERA in 1992 and was functional until HERA was decommissioned in June 2007. The scientific collaboration behind ZEUS consisted of about 400 physicists from 56 institutes in 17 countries.〔 (【引用サイトリンク】work=The ZEUS Experiment )〕 The ZEUS detector comprised many components, including a depleted uranium plastic-scintillator calorimeter, a central tracking detector (which is a wire chamber), a silicon microvertex detector and muon chambers. In addition, a solenoid provides a magnetic field. The ZEUS experiment studied the internal structure of the proton through measurements of deep inelastic scattering by colliding leptons (electrons or positrons) with proton in the interaction point of ZEUS. These measurements were also used to test and study the Standard Model of particle physics, as well as searching for particles beyond the Standard Model. ==Background== DESY was founded in 1959 and started colliding electron beams in 1964 in the DESY experiment. Since then, it has been a highly regarded center for particle physics. The design effort for ZEUS can be traced back to 1982,〔 〕 a Letter of Intent was submitted in 1985,〔 〕 and the HERA collider began operation in 1992. The last electron–proton collisions at ZEUS were recorded on 30 June 2007. The other multi-purpose experiment at the HERA collider was the competing H1 experiment. Since May 2012, the former ZEUS detector hall has been used as a lab space for the international European XFEL project.〔(【引用サイトリンク】publisher=European XFEL )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ZEUS (particle detector)」の詳細全文を読む スポンサード リンク
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