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2008
Journal Article
Titel
Measurement of the beam asymmetry Sigma in pi eta, production off the proton with the CBELSA/TAPS experiment
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 Sigma in the reaction gammaroh -> rohpi0eta was determined as a funkction of various masses and angles for photon energies between 970 MeV and 1650 MeV.
Author(s)
Anisovich, A.V.
Helmholtz-Institut für Strahlen- und Kernphysik der Universität Bonn, Germany / Petersburg Nuclear Physics Institute, Gatchina, Russia
Bayadilov, D.
Helmholtz-Institut für Strahlen- u. Kernphysik Universität Bonn, Germany / Petersburg Nuclear Physics Institute Gatchina, Russia
Crede, V.
Helmholtz-Institut für Strahlen- und Kernphysik der Universität Bonn, Germany / Department of Physics, Florida State University, Tallahassee, FL, USA
Kotulla, M.
Department Physik, Universität Basel, Switzerland / II. Physikalisches Institut, Universität Giessen, Germany
Nikonov, V.A.
Helmholtz-Institut für Strahlen- und Kernphysik der Universität Bonn, Germany / Petersburg Nuclear Physics Institute, Gatchina, Russia
Novinski, D.V.
Helmholtz-Institut für Strahlen- und Kernphysik der Universität Bonn, Germany / Petersburg Nuclear Physics Institute, Gatchina, Russia
Sarantsev, A.V.
Helmholtz-Institut für Strahlen- und Kernphysik der Universität Bonn, Germany / Petersburg Nuclear Physics Institute, Gatchina, Russia