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

V. V. Mochalov; S. B. Nurushev; A. N. Vasiliev; N. A. Bazhanov; N. S. Borisov; Y. M. Goncharenko; A. M. Davidenko; A. A. Derevschikov; V. G. Kolomiets; V. A. Kormilitsin; V. I. Kravtsov; A. B. Lazarev; Yu. A. Matulenko; Yu. M. Melnick; A. P. Meschanin; N. G. Minaev; D. A. Morozov; A. B. Neganov; L. V. Nogach; Yu. A. Plis; A. F. Prudkoglyad; A. V. Ryazantsev; P. A. Semenov; O. N. Shchevelev; L. F. Soloviev; Yu. A. Usov; A. E. Yakutin

arXiv · 0712.2677

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

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Abstract

Single-spin asymmetries $A_N$ in reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^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)->π^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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V. V. Mochalov, S. B. Nurushev, A. N. Vasiliev, N. A. Bazhanov, N. S. Borisov, Y. M. Goncharenko, A. M. Davidenko, A. A. Derevschikov, V. G. Kolomiets, V. A. Kormilitsin, V. I. Kravtsov, A. B. Lazarev, Yu. A. Matulenko, Yu. M. Melnick, A. P. Meschanin, N. G. Minaev, D. A. Morozov, A. B. Neganov, L. V. Nogach, Yu. A. Plis, A. F. Prudkoglyad, A. V. Ryazantsev, P. A. Semenov, O. N. Shchevelev, L. F. Soloviev, Yu. A. Usov, A. E. Yakutin. 2007-12-17. 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. https://arxiv.org/abs/0712.2677

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