MEASUREMENT OF THE SPIN ROTATION PARAMETER A(-SCATTERING OF POSITIVE PIONS ON A LONGITUDINALLY-POLARIZED PROTON TARGET IN THE 2ND RESONANCEREGION() IN THE ELASTIC)
Ig. Alekseev et al., MEASUREMENT OF THE SPIN ROTATION PARAMETER A(-SCATTERING OF POSITIVE PIONS ON A LONGITUDINALLY-POLARIZED PROTON TARGET IN THE 2ND RESONANCEREGION() IN THE ELASTIC), Physics letters. Section B, 351(4), 1995, pp. 585-590
The ITEP-PNPI collaboration presents the first results of the spin rot
ation parameter A(+) measurements in the second resonance region. The
experiment was performed at the ITEP accelerator at a positive pion be
am momentum 1.43 GeV/c for scattering angles theta(m) = 127 degrees an
d 133 degrees. The setup was based on a polarized proton target and a
carbon-plate polarimeter. The obtained data is compared with the predi
ctions of the existing partial-wave analyses.