Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-05-14
Nucl.Instrum.Meth.A541:516-565,2005
Physics
High Energy Physics
High Energy Physics - Experiment
107 pages, 45 Postscript figures, 14 tables, Elsevier LaTeX, submitted to Nucl. Instrum. Meth. A
Scientific paper
10.1016/j.nima.2004.12.031
The HyperCP experiment (Fermilab E871) was designed to search for rare phenomena in the decays of charged strange particles, in particular CP violation in $\Xi$ and $\Lambda$ hyperon decays with a sensitivity of $10^{-4}$. Intense charged secondary beams were produced by 800 GeV/c protons and momentum-selected by a magnetic channel. Decay products were detected in a large-acceptance, high-rate magnetic spectrometer using multiwire proportional chambers, trigger hodoscopes, a hadronic calorimeter, and a muon-detection system. Nearly identical acceptances and efficiencies for hyperons and antihyperons decaying within an evacuated volume were achieved by reversing the polarities of the channel and spectrometer magnets. A high-rate data-acquisition system enabled 231 billion events to be recorded in twelve months of data-taking.
Burnstein Ray A.
Chakravorty Alak
Chan Anthony A.
Chen Ya-Chen
Choong W.-S.
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