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Stokes parameters of γ-quanta in the e+ + e− → Z + γ reaction

  • Physics of Elementary Particles and Field Theory
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Soviet Physics Journal Aims and scope

Abstract

A general analysis is made of the polarization properties of γ-quanta in the e+ + e− → Z + γ reaction. Besides the standard mechanism of this reaction; which is determined by the eeZ interaction (neutral weak currents), the possible anomalous magnetic moment χ of the Z boson is also taken into account. A linear contribution in χ. to the differential cross section of the e+ + e− → Z + γ process (with unpolarized particles in the initial and final states) leads to CP-odd asymmetry of the angular distribution of γ-quanta relative to the substitution cos Θ→−cos Θ, where Θ is the angle of emission of the γ-quantum relative to the electron. Measurement of this asymmetry with an accuracy of the order of 1% makes it possible to get a “sense” of the contribution of the magnetic moment of a Z boson of the order of 10−3 GeV−1.

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Authors and Affiliations

  1. Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Kharkov

    M. P. Rekalo

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  1. M. P. Rekalo
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 76–79, December, 1983. 1135

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Rekalo, M.P. Stokes parameters of γ-quanta in the e+ + e− → Z + γ reaction. Soviet Physics Journal 26, 1135–1138 (1983). https://doi.org/10.1007/BF00894650

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  • DOI: https://doi.org/10.1007/BF00894650

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