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arXiv · hep-ph/9801410

Chargino mass determination at a muon collider

V. Barger·M. S. Berger·T. Han
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Abstract

We analyze the prospects at a muon collider for measuring chargino masses in the $μ^+μ^-\to \tildeχ^+\tildeχ^-$ process in the threshold region. We find that for the lighter chargino of a mass $100-200$ GeV, a measurement better than $50-300$ MeV should be possible with 50 fb$^{-1}$ integrated luminosity. The accuracy obtained here is better than with other techniques or at other facilities. The muon sneutrino mass, which enters through the $\tildeν_μ$ exchange diagram, can also be simultaneously measured to a few GeV if it is not too heavy.

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V. Barger, M. S. Berger, T. Han. 1998-01-26. Chargino mass determination at a muon collider. https://doi.org/10.1103/physrevd.59.071701

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