Recent Results from Protvino Polarized Experiment Proza-M

Details Recent Results from Protvino Polarized Experiment Proza-M Recent Results from Protvino Polarized Experiment Proza-M

2003-12-02

arxiv.org/abs/hep-ex/0312009v1

Phys.Part.Nucl. 35 (2004) S121-125

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 5 figures; Presented on X International Workshop on High Energy Spin Physics (SPIN-03), Dubna, September 16-20

Scientific paper

Single Spin Asymmetry $A_N$ (SSA) was measured at the Protvino 70 GeV accelerator. Asymmetry in the reaction $\ppdup$ is close to zero within error bars at small $|\xf|$ and $p_T<1.5$ GeV/c. SSA in the reaction $\pimp$ at polarized target fragmentation region equals to $(-13.8 \pm 3.8)%$ at $|x_f|>0.4$. There is an indication that the asymmetry begins to rise up at the same centre of mass system pion energy.

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