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HK: Physik der Hadronen und Kerne

HK 12: Poster Session: Electromagentic and Hadronic Probes

HK 12.33: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

High-Precision Measurements of Proton-Proton Bremsstrahlung — •M. Mahjour-Shafiei¹, H. Amir-Ahmadi¹, J.C.S. Bacelar¹, R. Castelijns¹, K. Ermisch¹, I. Gašparić², M.N. Harakeh¹, N. Kalantar-Nayestanaki¹, M. Kiš¹, and H. Löhner¹ — ¹Kernfysisch Versneller Instituut, Groningen, The Netherlands — ²Institut Rugjer Bošković, Zagreb, Croatia

The understanding of the strong force acting between nucleons is one of the most fundamental problems addressed by nuclear physics. One of the simplest reactions to study this force, besides elastic scattering, is proton-proton Bremsstrahlung. In 1996 a series of experiments were set up at KVI to study real and virtual proton-proton bremsstrahlung at 190 MeV in which the kinematics was chosen such that one goes as far away as possible from the elastic channel, thereby producing higher energy photons. In continuation of that work and in order to cover a much larger area of the available phase space, a new set up employing the SALAD and the Plastic-Ball detectors together was used with which much smaller photon energies were measured, thus moving toward the elastic channel. The preliminary results of the first measurements will be presented.