On the On-Shell Renormalization of the Chargino and Neutralino Masses in the MSSM

Details On the On-Shell Renormalization of the Chargino and Neutralino Masses in the MSSM On the On-Shell Renormalization of the Chargino and Neutralino Masses in the MSSM

2011-07-26

arxiv.org/abs/1107.5218v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 9 figures

Scientific paper

We discuss the choice of input parameters for the renormalization of the chargino and neutralino sector in the minimal supersymmetric standard model (MSSM) in the on-shell scheme. We show that one should chose the masses of a bino-like, a wino-like and a higgsino-like state as inputs in order to avoid large corrections to the masses of the other eigenstates in this sector. We also show that schemes where the higgsino-like input state is a neutralino are more stable than those where the mass of the higgsino-like chargino is used as input. The most stable scheme uses the masses of the wino-like chargino as well as the masses of the bino- and higgsino-like neutralinos as inputs.

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