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

Список авторов

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
(Institute for High Energy Physics, Protvino, Moscow region, 142281, Russia)

N.L. BAZHANOV, N.S. BORISOV, A.N. FEDOROV, V.G. KOLOMIETS, A.B. LAZAREV, A.B. NEGANOV, Y.A. PLIS, O.N. SHCHEVELEV,  Y.A. USOV
(JINR, Dubna, Moscow region, Russia)

Abstract

We present recent results of single-spin asymmetry $A_N$ measurements in $\pi^0$ inclusive production. Asymmetry was measured in $\pi^-p$ 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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