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Study of the eta meson production with polarized proton beam

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arxiv 1401.7516 v3 pith:4JXH4X6H submitted 2014-01-29 nucl-ex

Study of the eta meson production with polarized proton beam

classification nucl-ex
keywords beamprotoncosydetectormesonpolarizedpreliminaryproduction
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The pp-> pp eta reaction was investigated at excess energies of 15 MeV and 72 MeV using the azimuthally symmetric WASA detector and a polarized proton beam of the Cooler Synchrotron COSY. The aim of the studies is the determination of partial wave contributions to the production process of the eta meson in nucleon-nucleon collisions. Here we present preliminary results of the extraction of the position of the interaction region with respect to the WASA detector and preliminary results on the degree of polarization of the COSY proton beam used in the experiment.

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