de Lesquen, A;
van Rossum, L;
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ANALYZING POWER IN INCLUSIVE PI+ AND PI- PRODUCTION AT HIGH CHI-F WITH A 200 GEV POLARIZED PROTON-BEAM.
PHYS LETT B
462 - 466.
The analyzing power in inclusive charged pion production has been measured using the 200 GeV Fermilab polarized proton beam. A striking dependence in x(F) is observed in which A(N) increases from 0 to 0.42 with increasing x(F) for the pi+ data and decreases from 0 to -0.38 with increasing x(F) for pi- data. The kinematic range covered is 0.2 less-than-or-equal-to x(F) less-than-or-equal-to 0.9 and 0.2 less-than-or-equal-to p(T) 2.0 GeV/c. In a simple model our data indicate that at large x(F) the transverse spin of the proton is correlated with that of its quark constituents.
|Title:||ANALYZING POWER IN INCLUSIVE PI+ AND PI- PRODUCTION AT HIGH CHI-F WITH A 200 GEV POLARIZED PROTON-BEAM|
|Keywords:||HYPERON POLARIZATION, HADRON-PRODUCTION, SPIN ASYMMETRY, 18.5 GEV/C, SUM-RULE, SCATTERING, BERYLLIUM|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
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