Measurement of the beam asymmetry Σ in πeta; production off the proton with the CBELSA/TAPS experiment? |
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| Institution: | (1) Helmholtz-Institut für Strahlen- und Kernphysik der Universit?t Bonn, Germany;(2) II. Physikalisches Institut, Universit?t Gie?en, Germany;(3) Petersburg Nuclear Physics Institute, Gatchina, Russia;(4) Kernfysisch Versneller Instituut, Groningen, The Netherlands;(5) Physikalisches Institut, Universit?t Bonn, Germany;(6) Department of Physics, Florida State University, Tallahassee, USA;(7) Institut für Physik, Universit?t Basel, Switzerland |
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| Abstract: | In photoproduction experiments, a large number of final states yielding various resonance contributions are accessible. To
extract resonance parameters via partial-wave analysis not only the measurement of differential cross-sections is necessary,
but also the determination of polarization observables. At the electron accelerator ELSA (Bonn) the coherent bremsstrahlung
method was used to generate a linearly polarized photon beam. Using the CBELSA/TAPS detector setup, the beam asymmetry Σ in
the reaction γp → pπ0η was determined as a function of various masses and angles for photon energies between 970MeV and 1650MeV. |
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| Keywords: | 13 60 -r Photon and charged-lepton interactions with hadrons 13 60 Le Meson production 13 88 +e Polarization in interactions and scattering |
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