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More on the τ-μ-e problem: The process e+e→l+l in the region of the z-resonance

  • Elementary Particle Physics and Field Theory
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Soviet Physics Journal Aims and scope

Abstract

Theoretical and experimental aspects of the study of the e-μ-ε problem in effects of neutral weak currents in colliding e+e beams in the region of the Z resonance are discussed. Quantities that describe the “degree” of violation of e-μ-τ universality are analyzed. In particular, it is shown that by measuring the spin asymmetry for angles θ∿160° it is possible to determine the degree of violation ofl-e universality Δ=g eA g lV −g eV g lA to an accuracy of up to Δ ∼ 0.01.

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Literature cited

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 88-91, May, 1989.

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Aliev, T.M., Sultanov, S.F. & Yakh'yaev, R.S. More on the τ-μ-e problem: The process e+e→l+l in the region of the z-resonance. Soviet Physics Journal 32, 395–398 (1989). https://doi.org/10.1007/BF00895324

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  • DOI: https://doi.org/10.1007/BF00895324

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