Quasianapole Interaction of Charged Fermions

V. V. Makhnach

B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus

Abstract: We obtain the analytic expression for the total cross section of the reaction $e^-e^+\to l^-l^+$ ($l=\mu,\tau$) taking possible quasianapole interaction effects into account. We find numerical restrictions on the interaction parameter value from data for the reaction $e^-e^+\to\mu^-\mu^+$ in the energy domain below the $Z^0$ peak.

Keywords: weak and electromagnetic lepton interactions, neutral currents.

DOI: 10.4213/tmf68

 English version: Theoretical and Mathematical Physics, 2004, 139:3, 801–806

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