Dresden 2000 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 13: Postersitzung / Instrumentation und Anwendungen
HK 13.2: Poster
Thursday, March 23, 2000, 10:15–12:45, B 117
Silicon Detectors for low energetical Spectator-Proton and Luminosity Measurements at ANKE — •I. Lehmann1, S. Barsov2, A. Dewald3, S. Merzliakov4, A. Mussgiller1, D. Protic1, R. Schleichert1, and C. Steinert3 — 1Institut für Kernphysik, Forschungszentrum Jülich — 2High Energy Physics Department, Petersburg Nuclear Physics Institute — 3Institut für Kernphysik der Universität zu Köln — 4Laboratory of Nuclear Problems, JINR / Dubna
One of the physic-goals of the ANKE-spectrometer with the proton-beam of the Cooler Synchrotron COSY-Jülich are studies of elementary reactions on an effective neutron-target. By identifying the low energtic spectator-protons from the deuterium cluster target, the reactions on the neutron can be tagged.
The telescope-like structure of several layers of silicon strip detectors provides the ΔE/E-identification of protons and deuterons over a large dynamic range, as well as track information for these particles.
Results of the measurements at the Cologne Tandem-Accelerator with a well-defined proton beam and of a first beam-time at ANKE will be presented. The identification of elastically scattererd protons and deuterons will be used for the absolute luminosity determination. Furthermore it will be shown, how the spectator proton identification will be performed at ANKE in the near future.