25th International A2 Collaboration Meeting September 8-10, 2014, Dubna, Russia

1. 25th International A2 Collaboration Meeting September 8-10, 2014, Dubna, Russia The International Conference Hall, Joint Institute for Nuclear Research Programm: Sunday, 7th September 17:00 - 20:00 Registration Monday, 8th September 09:00 - 09:15 Welcome & Practical information – Y.Usov + Director of JINR V.Matveev Status of theory and other labs (25’+10’) Chair: H.J. Arends (Mainz) 09:15 - 10:00 Baryon Spectroscopy at ELSA - U. Thoma (HISKP – Bonn) 10:00 - 10:35 Compton Scattering Theory - A. L’Vov (LPI-Moscow) 10:35 - 11:05 Coffee break 11:05 - 11:40 An overview of the SPASCHARM project at Protvino - V.Mochalov (IHEP) 11:40 - 12:15 Multifragmentation of nuclei by photons – V. Nedorezov (INR –Moscow) 12:15 – 12:50 Dipole pion polarizabilities – L. Fil’kov (LPI – Moscow) 12:50 - 14:00 Lunch break Status of equipment I (10’+5’) Chair: W. Gradl 14:00 - 14:15 Targets Status & run planning 2015 - A. Thomas (Mainz) 14:15 - 14:30 Magnetic fields for polarized target experiments - J. Linturi (Mainz) 14:30 - 14:45 Active polarised target - M. Biroth (Mainz) 14:15 - 14:30 Tagging system - J Annand (Glasgow) 14:30 - 14:45 PID - D. Watts (Edinburgh) 14:45 - 15:00 MWPCs - P. Pedroni (Pavia) 15:00 - 15:30 Coffee break Status of equipment II (10’+5) Chair: A. Thomas (Mainz) 15:30 - 15:45 Crystall Ball - J. Wettig (Mainz) 15:45 -16:00 TAPS/PbWO - T.Rostomyan (Basel) 16:00 - 16:15 Computer Infrastructure and Data Acqusition – A. Neiser (Mainz) 16:15 - 16:30 EPT and set-up of the eta' experiment - M. Unverzagt (Mainz) 16:30 - 16:45 Updates on the new data taking procedures – TBA (Mainz) 16:45 – 17:00 Updates on the goat project – C.Collicott (DAL) 17:00 – 19:00 Analysis meeting - Convener: P. Martel (Mainz) 19:00 - Dinner Tuesday, 9th September New projects and miscellanea I (15’+5) Chair: M. Ostrick (Mainz) 09:00 – 09:20 Simulations of the WASA detector at MAMI - P.Adlarson (Uppsala) 09:20 - 09:40 3D printed scintillating materials and active target applications - G.Ron (HIJ) 09:40 – 10:00 Modifications of baryons in the nuclear medium – B.Briscoe (GWU) 10:00 - 10:20 The He-3 active target Compton project – J.Annand (Glasgow) 10:20 - 10:40 Possible Improvements in the beam time scheduling - M. Unverzagt (Mainz) 10:40 - 11:10 Coffee Break Status of analysis projects I (15’+5’) Chair: B. Krusche (Basel) 11:10 – 11:30 Neutron detection with CB M.A.Martemianov (ITEP) 11:30 – 11:50 Unpolarised gamma-deuteron data at 800 MeV V.V.Kulikov (ITEP) 11:50 - 12:10 Pion Production: T and F at threshold - P.Otte (Mainz) 12:10 - 12:30 TBA – T. Strub (Basel) 12:30 - 12:50 TBA - D. Werthmueller (Basel) 12:10 - 14:00 Lunch break Status of analysis projects II (15’+5’) Chair: M. Unverzagt (Mainz) 14:00 - 14:20 Coherent pi0 on nuclei – D. Glowa (Edinburgh) 14:20 - 14:40 Calibration and quality check of the double polarization data - F. Afzahl (Bonn) 14:40 – 15:00 E from pion photoproduction on proton/ deuteron - P.Pedroni (Pavia) 15:00 - 15:20 Compton scattering: Spin Polarizabilities - C.Collicott (Dal) 15:20 - 15:40 Compton scattering: Scalar Polarizabilities - E. Downie (GWU) 15:40 - 16:00 First results from eta' production - S.Wagner (Mainz) 16:00 - 16:30 Coffee Break 16:30 -19:00 Steering Committee (Topics: Run Planning, New Projects, Publications, PhD topics, .....) 19:00 - Dinner Wednesday, 10th September 09:00 – 19:00 Bus tour to Moscow Organizing committee: Yu.A.Usov — Chair Yu.A.Plis — Scientific Secretary T.S.Donskova — Technical Secretary A.Kovalik S.B.Gerasimov G.M.Gurevich N.S.Borisov A.B.Lazarev I.V.Gapienko • Scientific Program: • Theory of spin effects in photon reactions • Gerasimov-Drell-Hearn rule and spin structure of nucleons • Baryon spectroscopy • Compton scattering: scalar and spin polarizabilities • Status of equipment • Status of analysis projects • Polarized solid targets: recent progress and future prospects • New projects and miscellanea