Single spin asymmetries in inclusive $π^0$ production in $p+p$ and $π^-+p$ interactions at 40-70 GeV

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

arXiv · hep-ex/0612039

Single spin asymmetries in inclusive $π^0$ production in $p+p$ and $π^-+p$ interactions at 40-70 GeV

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Abstract

We present recent results of single-spin asymmetry $A_N$ measurements in $π^0$ inclusive production. Asymmetry was measured in $π^-p$ and $pp$ interactions at 40 and 70 GeV correspondingly. Significant asymmetry was observed in the polarized target fragmentation region. The results are in agreement with "universal threshold" of single-spin asymmetry.

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V. V. Mochalov, A. M. Davidenko, A. A. Derevschikov, Y. M. Goncharenko, V. Y. Khodyrev, V. I. Kravtsov, Y. A. Matulenko, Y. M. Melnick, A. P. Meschanin, N. G. Minaev, D. A. Morozov, L. V. Nogach, S. B. Nurushev, L. F. Prudkoglyad, P. A. Semenov, L. F. Soloviev, A. N. Vasiliev, A. E. Yakutin, N. L. Bazhanov, N. S. Borisov, A. N. Fedorov, V. G. Koloimiets, A. B. Lazarev, A. B. Neganov, Y. A. Plis, O. N. Shchevelev, Y. A. Usov. 2006-12-15. Single spin asymmetries in inclusive $π^0$ production in $p+p$ and $π^-+p$ interactions at 40-70 GeV. https://arxiv.org/abs/hep-ex/0612039

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