Tübingen 2003 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 11: Poster-Sitzung: Elektromagnetische und hadronische Proben
HK 11.19: Poster
Dienstag, 18. März 2003, 13:30–15:30, Foyer
Single-Pion Production at Tp = 400 MeV Measured at COSY-TOF∗ — •E. Dorochkevitch, H. Clement, A. Erhardt, J. Kress, and G.J. Wagner — Physikalisches Institut der Universität Tübingen
The single-pion production channels pp → dπ+, pp → pnπ+ and pp
→ ppπ0 have been measured exclusively at COSY at an incident proton
energy of Tp = 400 MeV. In order to get maximum coverage of the phase
space
of these reactions and to minimize contributions from pion decay in flight,
the TOF spectrometer has been used in its short version. Track
reconstruction
is achieved by the pixel informations from start, fiber, quirl and ring
hodoscopes. Particle identification and particle kinetic
energies have been obtained for particles detected in the central
calorimeter. For particles detected at larger angles in the ring hodoscope
the
time-of-flight information has been utilized for the determination of their
kinetic energy. Invariant mass spectra and
angular distributions have been obtained for all three reaction channels.
They
will be presented and discussed together with data obtained previously at
other experiments.
∗supported by the BMBF (06 TU 987) and DFG (Europäisches
Graduiertenkoll
eg)