Polarization of Σ+ hyperons produced by 800 GeV/c protons on Cu and Be
2004
We show that {sigma}{sup +} hyperons produced by 800 GeV/c protons on targets of Be and Cu have significant polarizations (15-20%). These polarizations persist at values of p{sub t}{approx_equal}2 GeV/c and a wide range of x{sub F}. The polarizations from the Cu target are consistently less than from Be. The average ratio of the {sigma}{sup +} polarization from Cu to that from Be is 0.68{+-}0.08.
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