Abstract
Inclusive differential cross sections and analyzing powers of the (p,) reaction on have been obtained at 400 and 450 MeV incident proton energies. The energy domain investigated spans the region of pion energies that arise in the pp→d reaction, a reaction which was measured at the same time. A 65 cm Browne-Buechner spectrometer, in a single-arm configuration, was used for detecting the pions. Measurements were made in the angular range of 46°–88° (lab). At forward angles the measured analyzing powers in the (p,)X reaction are quantitively similar to those of the pp→d and pp→pn reactions, but at backward angles they are considerably more negative. The analyzing power data for angles ≲70° (lab) are consistent with the predictions of a simple quasifree model that incorporates the free pN→NN data. Moreover, this model makes a reasonable prediction of the overall strength of the differential cross sections and also reproduces the qualitative shape of the pion energy distributions.
- Received 1 August 1985
DOI:https://doi.org/10.1103/PhysRevC.33.988
©1986 American Physical Society