The Comparative Study of the Inclusive $π^0$ Analyzing Power in Reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^0 + X at 50 and 40 Gev/C Respectively

Details The Comparative Study of the Inclusive $π^0$ Analyzing Power in Reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^0 + X at 50 and 40 Gev/C Respectively The Comparative Study of the Inclusive $π^0$ Analyzing Power in Reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^0 + X at 50 and 40 Gev/C Respectively

2007-12-17

arxiv.org/abs/0712.2677v1

Physics

High Energy Physics

High Energy Physics - Experiment

Talk given at XII Workshop on High Energy Spin Physics (Dubna-SPIN-07)

Scientific paper

Single-spin asymmetries $A_N$ in reactions p+p(pol)->\pi^0 + X and \pi^-+p(pol)->\pi^0 + X at 50 and 40 GeV/c respectively behave in drastically different ways in function of transverse momentum in the central region. At the same time $A_N$ in the polarized proton fragmentation region of these reactions are practically coinciding. Our new data on the analyzing power at 50 GeV/c in the polarized proton fragmentation region in reaction p+p(pol)->\pi^0 + X confirm this conclusion with better statistics and coincide with our previous data at 70 GeV/c for the same reaction.

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