paper

$A_N$ at small negative values of $\xf$ in the reaction $p+p(pol) \to Ï^0+X$ at 70 GeV and universal threshold in inclusive pion production

arXiv:hep-ex/0501062 · doi:10.1142/9789812701909_0111

Abstract

The talk continues the series of Single Spin Asymmetry (SSA) $Ï^0$ inclusive measurements carried out at Protvino 70 GeV accelerator. The asymmetry in the polarized target fragmentation region grows up in absolute value with $\xf$ decreasing and equals to $(-16 \pm 5)%$ at $-0.4<\xf<-0.25$. The result of the current experiment is in agreement with the universal threshold in pion asymmetries.

4 pages, 3 figures, Presented at SPIN-2004 at Trieste, October 10-16, 2004

$A_N$ at small negative values of $\xf$ in the reaction $p+p(pol) \to Ï^0+X$ at 70 GeV and universal threshold in inclusive pion production

Abstract

$A_N$ at small negative values of $\xf$ in the reaction $p+p(pol) \to Ï^0+X$ at 70 GeV and universal threshold in inclusive pion production