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One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme

H. Eberl·M. Kincel·W. Majerotto·Y. Yamada
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Abstract

We present a consistent procedure for the calculation of the one-loop corrections to the charginos and neutralinos by using their on-shell mass matrices. The on-shell gaugino mass parameters M and M', and the Higgsino mass parameter μare defined by the elements of these on-shell mass matrices. The on-shell mass matrices are different by finite one-loop corrections from the tree-level ones given in terms of the on-shell parameters. When the on-shell M and μare determined by the chargino sector, the neutralino masses receive corrections up to 4%. This must be taken into account in precision measurements at future e^+ e^- linear colliders.

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H. Eberl, M. Kincel, W. Majerotto, Y. Yamada. 2001-04-26. One-loop corrections to the chargino and neutralino mass matrices in the on-shell scheme. https://doi.org/10.1103/physrevd.64.115013

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