Title of article
HyperCP: A high-rate spectrometer for the study of charged hyperon and kaon decays
Author/Authors
Burnstein، نويسنده , , R.A. and Chakravorty، نويسنده , , A. and Chan، نويسنده , , A. and Chen، نويسنده , , Y.C. and Choong، نويسنده , , W.-S. and Clark، نويسنده , , Justin K. and Dukes، نويسنده , , E.C. and Durandet، نويسنده , , C. and Felix، نويسنده , , J. and Fuzesy، نويسنده , , R. and Gidal، نويسنده , , G. and Gu، نويسنده , , P. and Gustafson، نويسنده , , H.R. and Ho، نويسنده , , C. and Holmstrom، نويسنده , , T. and Huang، نويسنده , , M. and James، نويسنده ,
Pages
50
From page
516
To page
565
Abstract
The HyperCP experiment (Fermilab E871) was designed to search for rare phenomena in the decays of charged strange particles, in particular CP violation in Ξ and Λ 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 12 months of data-taking.
Keywords
Fermilab , Hyperon CP violation , Magnetic spectrometer , HyperCP , Rare hyperon and kaon decays , Hadronic calorimeter
Journal title
Astroparticle Physics
Record number
2025945
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