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IHEP 2003 - 27
V.V.Mochalov, S.M. Troshin, A.N.Vasiliev
Indication on the Universal Hadron Substructure - Constituent Quarks.
Protvino, 2003.- p.4, figs. 2, refs.:10.


The universality of single-spin asymmetry on inclusive pi-meson production is discussed. This universality can be related to the hadron substructure - constituent quarks in the frame of the quark model for U-matrix.


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