Nucleon resonance decay by the K0Σchannel

R. Castelijns; A. V. Anisovich; J. C. S. Bacelar; B. Bantes; O. Bartholomy; D. Bayadilov; Y. A. Beloglazov; V. Crede; H. Dutz; A. Ehmanns; D. Elsner; K. Essig; R. Ewald; I. Fabry; K. Fornet-Ponse; M. Fuchs; C. Funke; R. Gothe; R. Gregor; A. B. Gridnev; E. Gutz; S. Höffgen; P. Hoffmeister; I. Horn; I. Jaegle; J. Junkersfeld; H. Kalinowsky; S. Kammer; Frank Klein; Friedrich Klein; E. Klempt; M. Konrad; M. Kotulla; B. Krusche; J. Langheinrich; H. Löhner; I. V. Lopatin; J. Lotz; S. Lugert; D. Menze; T. Mertens; J. G. Messchendorp; V. Metag; C. Morales; M. Nanova; V. A. Nikonov; D. Novinski; R. Novotny; M. Ostrick; L. M. Pant; H. van Pee; M. Pfeiffer; A. Roy; A. Radkov; A. V. Sarantsev; S. Schadmand; C. Schmidt; H. Schmieden; B. Schoch; S. Shende; A. Süle; V. V. Sumachev; T. Szczepanek; U. Thoma; D. Trnka; R. Varma; D. Walther; C. Weinheimer; C. Wendel

doi:10.1140/epja/i2007-10529-8

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Nucleon resonance decay by the K⁰Σchannel

The CBELSA/TAPS Collaboration
R. Castelijns¹, A. V. Anisovich²^,3, J. C. S. Bacelar¹, B. Bantes⁴, O. Bartholomy², D. Bayadilov²^,3, Y. A. Beloglazov³, V. Crede², H. Dutz⁴, A. Ehmanns², D. Elsner⁴, K. Essig², R. Ewald⁴, I. Fabry², K. Fornet-Ponse⁴, M. Fuchs², C. Funke², R. Gothe⁴, R. Gregor⁵, A. B. Gridnev³, E. Gutz², S. Höffgen⁴, P. Hoffmeister², I. Horn², I. Jaegle⁶, J. Junkersfeld², H. Kalinowsky², S. Kammer⁴, Frank Klein⁴, Friedrich Klein⁴, E. Klempt², M. Konrad⁴, M. Kotulla⁵^,6, B. Krusche⁶, J. Langheinrich⁴, H. Löhner¹, I. V. Lopatin³, J. Lotz², S. Lugert⁵, D. Menze⁴, T. Mertens⁶, J. G. Messchendorp¹, V. Metag⁵, C. Morales⁴, M. Nanova⁵, V. A. Nikonov²^,3, D. Novinski³, R. Novotny⁵, M. Ostrick⁴^,7, L. M. Pant⁵, H. van Pee²^,5, M. Pfeiffer⁵, A. Roy⁵, A. Radkov³, A. V. Sarantsev²^,3, S. Schadmand⁵, C. Schmidt², H. Schmieden⁴, B. Schoch⁴, S. Shende¹, A. Süle⁴, V. V. Sumachev³, T. Szczepanek², U. Thoma²^,5, D. Trnka⁵, R. Varma⁵, D. Walther⁴, C. Weinheimer² and C. Wendel²

¹ KVI, University of Groningen, The Netherlands
² Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Germany
³ Petersburg Nuclear Physics Institute, Gatchina, Russia
⁴ Physikalisches Institut, Universität Bonn, Germany
⁵ II. Physikalisches Institut, Universität Gießen, Germany
⁶ Physikalisches Institut, Universität Basel, Switzerland
⁷ Institut für Kernphysik, Universität Mainz, Germany

Received: 13 February 2007
Accepted: 24 January 2008
Published online: 19 February 2008

Abstract

Hyperon production off the proton in the K ⁰Σ⁺ channel has been studied at the tagged-photon beam facility at the ELSA electron accelerator in Bonn. This experiment was part of a series of neutral meson production experiments on various targets. For this purpose, the Crystal Barrel and TAPS photon spectrometers have been combined to provide a 4π detector for multi-neutral-particle final states. A high-quality excitation function, recoil polarizations, and angular distributions from threshold up to 2.3GeV center-of-mass energy were obtained. The results are compared with predictions of recent coupled-channel calculations within the K -matrix formalism and are interpreted by the partial-wave analysis within the Bonn-Gatchina model.

PACS: 25.20.-x Photonuclear reactions – / 13.60.Rj Baryon production – / 13.60.Le Meson production – / 13.88.+e Polarization in interactions and scattering –

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Nucleon resonance decay by the K0Σchannel

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Nucleon resonance decay by the K⁰Σchannel