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IHEP 2006 - 23 (In Russian) | |
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| V.V.Abramov | ||
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About the Dependence of Single-Spin Asymmetry of Charged Pions on Kinematical Variables |
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| Protvino, 2006. – p. 9, figs: 8, tables: 2., refs.: 21. | ||
The work is dedicated to the phenomenological analysis of the dependence of experimental single-spin asymmetry data (AN) of charged pions, produced in pp- and pA-collisions, on kinematical variables. It is shown, that the threshold pion energy in c.m. (Ecm0), above which the |AN|> 0, depends on reaction energy \sqrt{s} and particle production angle \thetacm. The single-spin asymmetry dependence on kinematical variables in the region 0,7 < pT < 2,7 ÃýÂ/ñ and Ecm > E0cm has a scaling behavior. At moderate and low energies the dependence of AN on \sqrt{s} is essential. The formulas are obtained, which allow to predict the AN behavior for charged pions in a wide range of kinematical variables.
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