Measurement of single spin asymmetry in eta-meson production in p up arrow p and (p)over-bar up arrow p interactions in the beam fragmentation region at 200 GeV/c

摘要

We present experimental results on measuring a single spin asymmetry in eta-meson production in the interaction of transversely polarized protons and antiprotons at p(lab) = 200 GeV/c with a proton target in the region 0.2 < x(F) < 0.7 for p up arrow p, 0.3 < x(F) < 0.7 for (p) over bar up arrow p and 0.7 < p(T) < 2.0 GeV/c. A comparison of single spin asymmetries in pi- and eta-meson production is made.(C) 1998 Published by Elsevier Science B.V. [References: 11]