Microstructural Mechanisms of the Acoustoplastic Effect in Crystals

Abstract

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Longitudinal target polarization dependence of Λ̄ polarization and polarized strangeness PDFs

“…The resent results from COMPASS experiment [6] demonstrate, for example, that CTEQ5L PDFs are better describing the data than GRSV one. The preliminary data onΛ polarization dependence on the target polarization were for the first time presented on this workshop [5]. The statistical accuracy of these data is not so good, but there is a hint on the sign change of ∆PΛ.…”

“…Comparing Eqs. (5) and (2) we obtain the following simple expression for the anti-strangeness polarization: As for the unpolarized target case we have done the full calculations of the weighted polarization asymmetry (r.h.s. of Eq.…”

“…In Fig. 1 the results of full calculations [4] (using the cuts corresponding to COMPASS data) are presented together with recent data from COMPASS experiment [5], [6]. On the left panel the upper curve corresponds to SU(6) model for spin transfer from quark to hyperons and lower curve -to Burkardt-Jaffe mechanism [7].…”