2 research outputs found
Measurement of polarisation observables in Ks0ÎŁ+ photoproduction off the proton
- Author
- Anisovich A.V.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Bantes B.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Bartholomy O.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Bayadilov D.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Beck R.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Beloglazov Y.A.(Petersburg Nuclear Physics Institute, Gatchina, Russia)
- Brinkmann K.-T.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Crede V.(Department of Physics, Florida State University, Tallahassee, USA)
- Dutz H.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Elsner D.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Ewald R.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Fornet-Ponse K.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Frommberger F.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Funke Ch.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Gridnev A.B.(Petersburg Nuclear Physics Institute, Gatchina, Russia)
- Gutz E.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Hannappel J.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Hillert W.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Hoffmeister P.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Jaegle I.(Departement Physik, UniversitÀt Basel, Switzerland)
- Jahn O.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Jude T.C.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Junkersfeld J.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Kalinowsky H.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Kammer S.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Kleber V.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Klein Frank(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Klein Friedrich(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Klempt E.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Krusche B.(Departement Physik, UniversitÀt Basel, Switzerland)
- Lang M.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Lopatin I.V.(Petersburg Nuclear Physics Institute, Gatchina, Russia)
- Löhner H.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Menze D.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Mertens T.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Messchendorp J.G.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Metag V.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Nanova M.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Nikonov V.A.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Novinski D.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Novotny R.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- Ostrick M.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Pant L.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Roy A.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Sarantsev A.V.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Schadmand S.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Schmidt C.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Schmieden H.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Schoch B.(Physikalisches Institut, UniversitÀt Bonn, Germany)
- Shende S.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Sokhoyan V.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Sumachev V.V.(Petersburg Nuclear Physics Institute, Gatchina, Russia)
- Szczepanek T.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- SĂŒle A.(Physikalisches Institut, UniversitĂ€t Bonn, Germany)
- Thoma U.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Trnka D.(II. Physikalisches Institut, UniversitĂ€t GieĂen, Germany)
- van Pee H.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Varma R.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Walther D.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Wendel Ch.(Helmholtz Institut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Germany)
- Publication venue
- Publication date
- 17/10/2014
- Field of study
The reaction ÎłpâKS0ÎŁ+ is studied in the photon energy range from threshold. Linearly polarised photon beams from coherent bremsstrahlung enabled the first measurement of photon beam asymmetries in this reaction up to EÎł=1650MeV . In addition, the recoil hyperon polarisation was determined through the asymmetry in the weak decay ÎŁ+âpÏ0 up to EÎł=2250MeV . The data are compared to partial wave analyses, and the possible impact on the interpretation of a recently observed prominent structure in the cross section near the Kâ thresholds is discussed
Data on Is and Ic in ÎłâpâpÏ0Ï0 reveal cascade decays of N(1900) via N(1520)Ï
- Author
- Anisovich A.V.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Bacelar J.C.S.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Bantes B.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Bartholomy O.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Bayadilov D.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Beck R.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Beloglazov Y.(Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia)
- Castelijns R.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Crede V.(Department of Physics, Florida State University, Tallahassee, FL, 32306, USA)
- Dutz H.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Elsner D.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Ewald R.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Frommberger F.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Fuchs M.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Funke Ch.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Gregor R.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Gridnev A.(Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia)
- Gutz E.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Hillert W.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Hoffmeister Ph.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Horn I.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Jaegle I.(Departement Physik, UniversitÀt Basel, Basel, 4056, Switzerland)
- Junkersfeld J.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Kalinowsky H.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Kammer S.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Kleber V.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Klein Frank(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Klein Friedrich(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Klempt E.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Kotulla M.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Krusche B.(Departement Physik, UniversitÀt Basel, Basel, 4056, Switzerland)
- Lang M.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Lopatin I.(Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia)
- Lugert S.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Löhner H.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Mertens T.(Departement Physik, UniversitÀt Basel, Basel, 4056, Switzerland)
- Messchendorp J.G.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Metag V.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Nanova M.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Nikonov V.A.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Novinski D.(Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia)
- Novotny R.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Ostrick M.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Pant L.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Pfeiffer M.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Piontek D.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Roy A.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Sarantsev A.V.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Schmidt Ch.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Schmieden H.(Physikalisches Institut, UniversitÀt Bonn, Bonn, 53115, Germany)
- Shende S.(Kernfysisch Versneller Instituut, Groningen, The Netherlands)
- Sokhoyan V.HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany
- Sumachev V.V.(Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia)
- Szczepanek T.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- SĂŒle A.(Physikalisches Institut, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Thiel A.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Thoma U.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Trnka D.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- van Pee H.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Varma R.(II. Physikalisches Institut, UniversitĂ€t GieĂen, GieĂen, 35392, Germany)
- Walther D.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Wendel Ch.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Wilson A.(HelmholtzâInstitut fĂŒr Strahlen- und Kernphysik, UniversitĂ€t Bonn, Bonn, 53115, Germany)
- Publication venue
- Publication date
- Field of study
Photoproduction of two neutral pions off the proton is studied using linearly polarized photons, and the polarization observables Is and Ic are measured for the first time. These two observables are unique to multi-meson final states; they characterize correlations between the linear photon polarization and the direction of outgoing single particles in photoproduction of three-body final states. The Is and Ic distributions suggest that, in the 1.8 to 2.0 GeV mass region, the N(1520)3/2âÏ intermediate state is reached with reaction dynamics consistent with a dominant JP=3/2+ wave. These data are included in the BonnâGatchina (BnGa) partial wave analysis which is based on a large variety of data; the analysis confirms a significant contribution from the reaction chain ÎłpâN(1900)3/2+âN(1520)3/2âÏ0âpÏ0Ï0