The SPHINX spectrometer SPHINX Collaboration; Antipov, Yu; Artamonov, A ...
arXiv (Cornell University),
04/2005
Journal Article
Open access
The paper describes the SPHINX facility which includes a wide-aperture
magnetic spectrometer with scintillation counters and hodoscopes, proportional
chambers and drift tubes, multichannel ...electromagnetic and hadron calorimeters,
a guard system, a RICH velocity spectrometer and a hodoscopical threshold
Cherenkov detector for the identification of charged secondary particles. The
SPHINX spectrometer, in its last modification, had the possibility to record
3000-4000 trigger events per an accelerator burst. The spectrometer was used
during the last decade in experiments with the 70GeV proton beam of the IHEP
accelerator U-70.
The SPHINX spectrometer Collaboration, SPHINX; Antipov, Yu; Artamonov, A ...
arXiv.org,
12/2005
Paper
Open access
The paper describes the SPHINX facility which includes a wide-aperture magnetic spectrometer with scintillation counters and hodoscopes, proportional chambers and drift tubes, multichannel ...electromagnetic and hadron calorimeters, a guard system, a RICH velocity spectrometer and a hodoscopical threshold Cherenkov detector for the identification of charged secondary particles. The SPHINX spectrometer, in its last modification, had the possibility to record 3000-4000 trigger events per an accelerator burst. The spectrometer was used during the last decade in experiments with the 70GeV proton beam of the IHEP accelerator U-70.
The analyzing power ital Asub ital N of proton-proton elastic scattering in the Coulomb-nuclear interference region has been measured using the 200-GeV/ital c Fermilab polarized proton beam. A ...theoretically predicted interference between the hadronic non-spin-flip amplitude and the electromagnetic spin-flip amplitude is shown for the first time to be present at high energies in the region of 1.5times10sup minus3 to 5.0times10sup minus2 (GeV/ital c)sup 2 four-momentum transfer squared, and our results are analyzed in connection with theoretical calculations. In addition, the role of possible contributions of the hadronic spin-flip amplitude is discussed.
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