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Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 27: Hadronic Probes III, Particle Production

HK 27.6: Vortrag

Dienstag, 17. März 1998, 15:45–16:00, C

Measurement of the π production with polarized neutrons on protons. — •P Sereni, J Arnold, J Franz, H Lacker, and H Schmitt — Fakult"at f"ur Physik der Universit"at Freiburg and in collaboration: Université de Genève, Paul Scherrer Institut, Karlova Universita Praha, CEA DAPNIA/SPP, CE-Saclay

With the polarized neutron beam at PSI the spin dependent π production on protons has been investigated from threshold to 570 MeV. Pions from the reaction n  p → π  p  p were detected in the angular range 0≤ Θπ,lab ≤ 15 with a magnetic spectrometer, equipped with drift chambers. Asymmetries have been determined as functions of the incident energy, the pp invariant mass, and the pion center–of–mass angle. Preliminary results will be presented and discussed.


This work is funded by the fonds national suisse de la recherche scientifique, and by the German Bundesminister für Bildung, Wissenschaft und Forschung (BMBF) under the contract No 06 FR 560.

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