Precision $\mu^+\mu^+$ and $\mu^+e^-$ elastic scatterings

Expected precisions of measurements of the elastic scattering cross sections are estimated for $\mu^+ \mu^+$ and $\mu^+ e^-$ colliders, which are recently proposed as future realistic possibilities ($\mu$TRISTAN). Comparing with contributions from possible new physics represented by higher dimensional operators, we find that the measurements at a TeV energy $\mu^+\mu^+$ collider can probe the scale of new physics up to $O(100)$~TeV. A $\mu^+ e^-$ collider for the Higgs boson factory can also improve the electroweak precision test.

Comment: 21 pages, 8 figures, 2 tables

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Keywords

High Energy Physics - Phenomenology

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