Positivity restrictions to the transverse polarization of the inclusively detected spin-half baryons in unpolarized electron-positron annihilation
Abstract
Description
The positivity constraints to the structure functions for the inclusive spin-half baryon production by a time-like photon fragmentation are investigated. One conclusion is that $\hat F$, which arises from the hadronic final-state interactions, is subjected to an inequality between its absolute value and the two spin-independent structure functions. On the basis of this finding, we derive a formula through which the upper limits can be given for the transverse polarization of the inclusively detected spin-half baryons in unpolarized electron-positron annihilation. The derived upper bound supplies a consistency check for the judgement of reliability of experimental data and model calculations.
final version to appear in Z. Phys. C, references updated
final version to appear in Z. Phys. C, references updated