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IHEP 2006 - 9 (In Russian) | ||
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| V.V.Abramov, A.A.Volkov,P.I.Goncharov, A.Yu.Kalinin, A.V.Korablev, Yu.P.Korneev, A.V.Kostritsky, A.N.Krynitsin, V.I.Kryshkin, A.A.Markov, V.V.Talov, L.K.Turchanovich, A.V.Khmelnikov | |||
Single-Spin Asymmetry of Charged Hadron Production
in pA-Collisions at 40 GeV and c.m. Angles 40-79o
| Protvino, 2006. – p. 18, figs: 8, tables: 6, refs.: 27.
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The transverse single-spin asymmetry has been measured for charged hadrons (pi{pm}, K{pm}, p, \bar{p}, produced in proton-nucleus collisions in c.m. angle range 40-79o. The measurements have been performed at FODS-2 experimental setup using IHEP 40 GeV polarized beam and nuclear targets (C and Cu). The data are obtained in polarized proton fragmentation region ((0,0 < xF < 0,7; 0,6 < pT < 2,5 GeV/c). The single-spin asymmetry for pi{pm}-mesons becomes large at high xF, in agreement with the data, obtained at other energies. Significant analyzing power has been observed for protons which changes its sign at xF = 0.43. The dependence of analyzing power off target nuclei mass is not significant.
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