Final-state Interaction Effects on Inclusive Two-particle Production in Electron-positron Annihilation

Details Final-state Interaction Effects on Inclusive Two-particle Production in Electron-positron Annihilation Final-state Interaction Effects on Inclusive Two-particle Production in Electron-positron Annihilation

1997-06-22

arxiv.org/abs/hep-ph/9706445v1

J.Phys.G23:1085-1092,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, 11 pages, 1 figure in postscript, to appear in J. Phys. G

Scientific paper

10.1088/0954-3899/23/9/008

The final-state interaction effects on the inclusive two-particle production in electron-positron annihilation are investigated within the context of the one-photon annihilation approximation. Such effects are characterized by one structure function in the decomposition of the hadronic tensor. On the basis of the positivity, we derived an inequality to bound this structure function. The price to access it experimentally is to polarize longitudinally one of the initial-state beam, to say, the electron beam, and measure the corresponding single spin asymmetry. By combining the Callan-Gross relation with our positivity analysis, we obtain an upper bound for the single spin asymmetry considered.

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