Recent Results from Protvino Polarized Experiment Proza-M

2003/12/02 by V. Mochalov, N. Borisov, A. Davidenko +23
Physics and Astronomy · #hep-ex

paper · pdf

published as Phys.Part.Nucl. 35 (2004) S121-125 · 6 pages, 5 figures; Presented on X International Workshop on High Energy Spin Physics (SPIN-03), Dubna, September 16-20

arxiv created 2003/12/02 · arxiv updated 2009/12/01

Abstract

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 ± 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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