NSTAR 2007 : Proceedings of The 11th Workshop on The Physics of Excited Nucleons, 5-8 September 2007, Bonn, Germany

c Societ` a Italiana di Fisica / Springer-Verlag 2008 The 11th Workshop on The Physics of Excited Nucleons, NSTAR 2007, was held at the University of Bonn, Germany,fromSeptember5–8,2007.ItwasthelatestofaseriesofsuccessfulconferencesattheRensselaerPolytechnic Institute (1988), Florida State University (1994 and 2005), Je?erson Lab (1995 and 2000), INT Seattle (1996), GWU ? Washington (1997), ECT Trento (1998), Mainz (2001), Pittsburgh (2002) and the LPSC Grenoble (2004). A Baryon Resonance Analysis Group (BRAG) meeting immediately before the workshop focused especially on the physical meaning of bare and dressed scattering matrix singularities. A focus workshop on? photoproduction rounded o? the NSTAR 2007. The goal of NSTAR 2007 was to bring together experts on all areas of physics relevant to baryon spectroscopy, both in experiment and theory. Latest results were presented in 30 plenary talks and 34 parallel contributions, the proceedings of which are collected in this volume. The workshop was attended by 123 scientists of 41 universities and laboratories from 16 countries. Exciting new high-precision data were shown from facilities in Asia, the US and Europe, e.g. BES, BNL, COSY, ELSA, GRAAL, JLab, MAMI and LEPS. Large-acceptance detectors provide complete angular distributions in many reaction channels. Particular emphasis is put on the measurement of single and double polarisation observables such that many new polarization measurements can be expected in forthcoming meetings. Front Matter....Pages I-XX Excited hadrons on the lattice....Pages 1-6 Probing the nucleon structure with CLAS....Pages 7-13 Physics at ELSA....Pages 14-19 Baryon resonance experiments at COSY....Pages 20-25 Analysis of the Δ-resonance in a finite volume....Pages 26-30 Experiments on magnetic moments of excited baryons....Pages 31-34 Recent developments in the constituent quark model including quark-antiquark pairs....Pages 35-39 Nucleon structure from lattice QCD....Pages 40-45 Quark models....Pages 46-51 Polarization in hyperon photo- and electro-production....Pages 52-58 Recent BESII results....Pages 59-64 N* (1670) observed at LNS, Sendai....Pages 65-69 Resonances in hadron-induced reactions....Pages 70-75 Analysis of CLAS data on double charged-pion electroproduction....Pages 76-80 Resonances in chiral unitary approaches....Pages 81-86 Analysis of baryon resonances in the coupled-channel Giessen model....Pages 87-92 Excited baryons in large N c QCD....Pages 93-98 Physics at MAMI....Pages 99-103 The nature of the Λ(1405)....Pages 104-108 Partial-wave analysis and baryon spectroscopy....Pages 109-114 Recent results from the MAID and Dubna-Mainz-Taipei PWA analysis....Pages 115-120 Partial wave analysis in the Bonn-Gatchina framework....Pages 121-126 Current status of a coupled-channel partial wave analysis using data from CLAS at Jefferson Lab....Pages 127-132 Chiral corrections to the Roper mass....Pages 133-136 The JLab upgrade — Studies of the nucleon with CLAS12....Pages 137-143 Perspectives for dynamic polarized solid target experiments....Pages 144-151 Hadron physics at the FAIR facility....Pages 152-156 Dynamical coupled-channels analysis at EBAC....Pages 157-161 Chiral constituent quark model study of the process γp → ηp....Pages 162-165 Flavor asymmetry of the nucleon sea in an unquenched quark model....Pages 166-168 How and when can one identify hadronic molecules in the baryon spectrum....Pages 169-172 GDH sum rule and double polarization experiments on the deuteron....Pages 173-175 η photoproduction off the nucleon revisited: Evidence for a narrow N(1688) resonance?....Pages 176-178 Dipole and quadrupole polarizabilities of the pion....Pages 179-181 Three-body hadronic structure of low-lying 1/2 + Σ and Λ resonances....Pages 182-184 A new nucleon resonance in η photoproduction....Pages 185-187 Baryon resonance analysis with Jülich meson exchange model....Pages 188-189 Measurement of the beam asymmetry Σ in π 0 η production off the proton with the CBELSA/TAPS experiment....Pages 190-192 Baryon octupole moments....Pages 193-195 Selection rules and quark correlations in the N* resonance spectrum....Pages 196-198 Radiative decays of the Δ*(1700) and the Λ*(1520)....Pages 199-201 Near threshold production of the pseudoscalar mesons at the COSY-11 facility....Pages 202-204 Transfer of polarization in hyperon photoproduction....Pages 205-207 Study of η -production reaction π − p → η n in the near-threshold region....Pages 208-211 Helicity amplitudes of nonstrange baryons in the third and fourth resonance region....Pages 212-214 A possible tetraquark state in heavy quarkonium decays....Pages 215-218 Dynamics of the near threshold η meson production in proton-proton interaction....Pages 219-221 Linearly polarised photons at ELSA and measurement of the beam asymmetry in η -photoproduction off the proton....Pages 222-224 Baryon resonances and strong decays....Pages 225-227 Excitation of the Roper resonance in single- and double-pion production in nucleon-nucleon collisions....Pages 228-230 Electroexcitation of the Roper resonance from CLAS data....Pages 231-233 Cascade resonance properties from charm baryon decays at BABAR....Pages 234-236 Unified description of pion production processes on few-nucleon systems....Pages 237-239 Nucleon electroweak form factors in a meson-cloud model....Pages 240-242 On the nature of the lowest 1/2 − baryon nonet and decuplet....Pages 243-246 A Regge-plus-resonance approach to kaon production on the nucleon....Pages 247-250 Search for exotics in γ D → ø np reactions near threshold....Pages 251-253 Baryon Regge trajectories in the 1/N c expansion....Pages 254-257 A summary of the NSTAR 2007 Workshop....Pages 258-265 The physical meaning of scattering matrix singularities in coupled-channel formalisms....Pages 266-279 C Societ` a Italiana di Fisica / Springer-Verlag 2008 The 11th Workshop on The Physics of Excited Nucleons, NSTAR 2007, was held at the University of Bonn, Germany, fromSeptember5-8,2007. ItwasthelatestofaseriesofsuccessfulconferencesattheRensselaerPolytechnic Institute (1988), Florida State University (1994 and 2005), Je?erson Lab (1995 and 2000), INT Seattle (1996), GWU? Washington (1997), ECT Trento (1998), Mainz (2001), Pittsburgh (2002) and the LPSC Grenoble (2004). A Baryon Resonance Analysis Group (BRAG) meeting immediately before the workshop focused especially on the physical meaning of bare and dressed scattering matrix singularities. A focus workshop on? photoproduction rounded o? the NSTAR 2007. The goal of NSTAR 2007 was to bring together experts on all areas of physics relevant to baryon spectroscopy, both in experiment and theory. Latest results were presented in 30 plenary talks and 34 parallel contributions, the proceedings of which are collected in this volume. The workshop was attended by 123 scientists of 41 universities and laboratories from 16 countries. Exciting new high-precision data were shown from facilities in Asia, the US and Europe, e.g. BES, BNL, COSY, ELSA, GRAAL, JLab, MAMI and LEPS. Large-acceptance detectors provide complete angular distributions in many reaction channels. Particular emphasis is put on the measurement of single and double polarisation observables such that many new polarization measurements can be expected in forthcoming meetings The excitation spectrum of the nucleon offers insights into the non-perturbative regime of QCD. The NStar workshops are a series of meetings that bring together experimenters and theoreticians working on baryon resonances and related areas. This work covers the proceedings that constitute an archival record of the progress in the field.