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Single-Spin Asymmetry in Inclusive $pi^0$ Production Measured at the Protvino 70 GeV Accelerator

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 نشر من قبل Vassili Mochalov
 تاريخ النشر 2003
  مجال البحث
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Single Spin Asymmetries (SSA) $A_N$ measured in the two reactions at the Protvino 70 GeV accelerator are presented. $A_N$ in the reaction $p+p(pol)->pi^0+X$ in the central region is close to zero within the error bars. SSA in the reaction $pi^- +p(pol)->pi^0+X$ in the polarized target fragmentation region is equal to $(-15 pm 4)%$ at $|x_F|>0.4$. There is an indication that the asymmetry arises at the same pion energy in the center of mass system.

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