Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 3: Electromagnetic and Hadronic Probes I
HK 3.4: Vortrag
Montag, 8. März 2004, 17:15–17:30, B
A Systematic measurement of the proton-deuteron radiative capture process — •A.A. Mehmandoost-Khajeh-dad1,2, H. Amir-Ahmadi2, J.C.S. Bacelar2, A.M. van den Berg2, R. Castelijns2, E. van Garderen2, M.N. Harakeh2, N. Kalantar-Nayestanaki2, M. Kiš2, H. Löhner2, M. Mahjour-Shafiei2, J. Messchendorp2, B. Mukherjee2, S.V. Shende2, and H.J. Wörtche2 — 1Mashad Ferdowsi university, Physics department, Mashad, Iran — 2Kernfysisch Versneller Instituut (KVI), Groningen, The Netherlands
The study of radiative capture of a proton by a deuteron is of special interest since it relevant for high-momentum components of the wave functions involved in the transition. Furthermore, this process is sensitive to meson-exchange currents and initial-state interactions.
Although,the radiative capture process has been studied in the past, a systematic investigation of the differential cross section and analyzing power as a function of center of mass energy covering a large angular region is still missing. Recently, we performed an experiment at KVI in which a polarized-deuteron beam, in a range of incident-beam energies between 110 and 180 MeV, impinged on a liquid-hydrogen target. The magnetic spectrometere, BBS, and the large plastic-scintillator sphere, Plastic Ball, were used to determine the positions and energies of 3He and photon, respectively. In this contribution, the first results of the measurements will be presented and discussed.