Heidelberg 2015 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 3: Instrumentation 2
HK 3.7: Talk
Monday, March 23, 2015, 16:15–16:30, M/HS2
Commissioning of the KOALA Experiment by Proton Beam at COSY — •Qiang Hu1,2, Huagen Xu2, and James Ritman2 — 1Institute of Modern Physics,CAS,Lanzhou,730000,China — 2Forschungszentrum Juelich,52425 Juelich,Germany
The KOALA Experiment at HESR is dedicated to measure counts of antiproton-proton elastic scattering in a large range of squared 4-momentum transfer, t, from 0.0008 to 0.1 GeV2. The goal of the KOALA Experiment is to determine the antiproton-proton elastic scattering forward parameters (i.e. σtot, ρ and b) to save as a calibration for the PANDA luminosity detector. The scattered antiprotons will be measured by tracking detectors in the forward angle region and the recoil protons will be detected with energy detectors near polar angles of 90∘. One recoil arm has been built and commissioned at COSY by measuring proton-proton elastic scattering in the beam momentum region from 1.7 to 3.2 GeV/c. The data at beam momentum of 2.8 GeV/c and 3.2 GeV/c have been analyzed. Preliminary results of the analysis will be presented.