Recent Results from Experiments at COSY

In hadron physics, experiments using hadronic probes may shed light on open questions on the structure of hadrons, their interactions that are subject to the strong force and on the symmetries of nature. Therefore a major focus of the physics program studied at the COoler SYnchrotron COSY of the For...

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Bibliographic Details
Published in:Hardon 2009 2009-12, Vol.1257, p.213-220
Main Author: Goldenbaum, Frank
Format: Article
Language:English
Subjects:
Accumulation
Availability
Beams (structural)
Broken symmetry
C (programming language)
Coolers
Cooling systems
Covering
Decay
Detectors
Deuterium
Deuterons
Factories
Hadrons
Hyperons
Industrial engineering
Manufacturing engineering
Mesons
Plants
Polarization
Quarks
Scattering
Sheds
Symmetry
Synchrotrons
Turning
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Summary:In hadron physics, experiments using hadronic probes may shed light on open questions on the structure of hadrons, their interactions that are subject to the strong force and on the symmetries of nature. Therefore a major focus of the physics program studied at the COoler SYnchrotron COSY of the Forschungszentrum Julich is the production of mesons and hyperons in hadron- hadron scattering with the aim to investigate relevant production processes, interactions of the participating particles as well as symmetries and symmetry breaking. The COoler SYnchrotron COSY at Julich accelerates protons and deuterons with momenta up to 3.7 GeV/c covering hadron physics in the light quark sector. The availability of the beam cooling systems allow precision measurements, using polarized proton and deuteron beams in combination with polarized Hydrogen or Deuterium targets. Due to the excellent experimental conditions at COSY single- and double-polarization measurements can be performed with high reaction rates. With the operation of the recently installed WASA-at-COSY apparatus, high-statistics studies aiming at rare decays of eta and eta ' are effectively turning COSY into a meson factory. This contribution summarizes the ongoing physics program at the COSY facility, using the detector systems ANKE, WASA and COSY-TOF highlighting a few selective recent results and outlining future developments. The research at COSY also provides a step towards the realization of FAIR with studies on spin manipulation and polarization build-up of protons in polarized targets.
ISSN:0094-243X