/ Experiment-HEP hep-ex/0501062


A(N) at small negative values of x(F) in the reaction p + p(up) ---> pi0 + X at 70-GeV and universal threshold in inclusive pion production


Davidenko, A.M. (Serpukhov, IHEP) ; Derevschikov, A.A. (Serpukhov, IHEP) ; Grishin, V.N. (Serpukhov, IHEP) ; Khodyrev, V.YU. (Serpukhov, IHEP) ; Matulenko, Yu.A. (Serpukhov, IHEP) ; Melnick, Yu.M. (Serpukhov, IHEP) ; Meschanin, A.P. (Serpukhov, IHEP) ; Mochalov, V.V. (Serpukhov, IHEP) ; Nogach, L.V. (Serpukhov, IHEP) ; Nurushev, S.B. (Serpukhov, IHEP) ; Semenov, P.A. (Serpukhov, IHEP) ; Prudkoglyad, A.F. (Serpukhov, IHEP) ; Shestermanov, K.E. (Serpukhov, IHEP) ; Soloviev, L.F. (Serpukhov, IHEP) ; Vasiliev, A.N. (Serpukhov, IHEP) ; Yakutin, A.E. (Serpukhov, IHEP) ; Borisov, N.S. (Dubna, JINR) ; Fedorov, A.N. (Dubna, JINR) ; Matafonov, V.N. (Dubna, JINR) ; Neganov, A.B. (Dubna, JINR) ; Plis, Yu.A. (Dubna, JINR) ; Usov, Yu.A. (Dubna, JINR) ; Lukhanin, A.A. (Kharkov, KIPT)

Page No: 551-554
Pages: 4

Abstract: The talk continues the series of Single Spin Asymmetry (SSA) $\pi^0$ inclusive measurements carried out at Protvino 70 GeV accelerator. The asymmetry in the polarized target fragmentation region grows up in absolute value with $\xf$ decreasing and equals to $(-16 \pm 5)%$ at $-0.4<\xf<-0.25$. The result of the current experiment is in agreement with the universal threshold in pion asymmetries.

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 Record created 2010-10-28, last modified 2013-11-12



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