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Physics Procedia 51 (2014) iii

NPPatLPS Poster ...... 1 Preface G. Pignol, T. Soldner, C. Theroine ...... 3 Scientifi c programme and list of participants ...... 5 Status of the European Spallation Source ESS AB, the Instrument Selection Process, and a Fundamental Physics Beamline at the ESS R. Hall-Wilton, C. Theroine ...... 8 The Present Status of Particle Physics with Slow Neutrons D. Dubbers ...... 13 Fundamental Neutron Physics W.J. Marciano ...... 19 Low-energy Precision Physics and the High-energy Frontier A. Signer ...... 25 Fundamental Neutron Physics with Long Pulsed Spallation Sources W.M. Snow ...... 31 Bound Beta-decay of the Free Neutron: BoB J. McAndrew, S. Paul, R. Engels, P. Fierlinger, E. Gutsmiedl, J. Schön, W. Schott ...... 37 Systematic Advantages of Pulsed Beams for Measurements of Correlation Coeffi cients in Neutron Decay B. Märkisch ...... 41 Beam Line Parameters for PERC at the ESS C. Klauser, H. Abele, T. Soldner ...... 46 Neutron-decay Correlation Measurements with Polarized and Pulsed Beams T. Chupp ...... 50 A Path to a 0.1 s Neutron Lifetime Measurement Using the Beam Method F.E. Wietfeldt, G. Darius, M.S. Dewey, N. Fomin, G.L. Greene, J. Mulholland, W.M. Snow, A.T. Yue ...... 54 Ramsey Experiments Using Neutron Beams F.M. Piegsa ...... 59 Testing Baryon Number Conservation in Braneworld Models with Cold Neutrons M. Sarrazin ...... 63 Experiments with Gravitationally-bound Ultracold Neutrons at the European Spallation Source ESS T. Jenke, H. Abele ...... 67 Testing Chameleon Fields with Ultra Cold Neutron Bound States and Neutron Interferometry P. Brax ...... 73 Considerations for an Intense Source of Ultracold Neutrons at the European Long Pulse Spallation Source J.M. Pendlebury, G.L. Greene ...... 78 Superfl uid-helium Ultracold Neutron Sources: Concepts for the European Spallation Source? O. Zimmer ...... 85 Spallation UCN Production for nEDM Y. Masuda, K. Hatanaka, S.-C. Jeong, S. Kawasaki, R. Matsumiya, K. Matsuta, M. Mihara, Y. Watanabe ...... 89 Spallation-driven Ultracold Neutron Sources: Concepts for a Next Generation Source A.R. Young, T. Huegle, M. Makela, C. Morris, G. Muhrer, A. Saunders ...... 93 Ultracold Neutron Production at the Second Spallation Target of the Paul Scherrer Institute B. Lauss on behalf of the PSI UCN Project Team ...... 98 Infrastructure for Next Generation Experiments with Ultracold Neutrons P. Fierlinger ...... 102

doi:10.1016/S1875-3892(14)00007-8