Analyzing power of inclusive production of pi +, pi -, and KS0 by polarized protons at 13.3 and 18.5 GeV/c.
1990
We have measured the analyzing power in {pi}{sup +}, {pi}{sup {minus}}, and {ital K}{sub {ital S}}{sup 0} production by a polarized proton beam at 13.3 and 18.5 GeV/{ital c}. The data cover the central and the beam fragmentation region, in the transverse-momentum range up to 2 GeV/{ital c}. The results indicate that sizable effects are present at high {ital x}{sub {ital F}} and also persist into the hard-scattering region for {ital K}{sub {ital S}}{sup 0} and {pi}{sup +}. A zero value of the analyzing power was observed for {pi}{sup {minus}} production.
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