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Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 32: Structure of Baryons, Mesons IV, HERMES, CHORUS, SELEX

HK 32.6: Vortrag

Dienstag, 17. März 1998, 15:30–15:45, H

Total cross sections of 650GeV/c Σ and π on nuclei at SELEX — •U. Dersch, I. Eschrich, I. Konorov, H. Krüger, B. Povh, J. Simon, and K. Vorwalter — Max-Planck Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg
The hyperon beam line at Fermilab provides a 650GeV/c secondary beam with a Σ ratio of about 1.5. Combining this beam with the high accuracy tracking devices of the SELEX silicon detector system offers a unique opportunity to study energetic hyperon - nucleon interaction.
Using the SELEX spectrometer we have recorded more than 100 million minimum bias events on Be, C, CH2 and Cu targets in the 1997 run.
The aim of the present study is the determination of the Σ and π total cross sections on nuclei and protons. The analysis method chosen is a transmission technique.
The method and the status of the analysis will be presented.

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