Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-04-13
Phys.Rev. D66 (2002) 055007
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version accepted in Phys. Rev. D. e-mail: gounaris@physics.auth.gr
Scientific paper
10.1103/PhysRevD.66.055007
We present a new formalism describing the neutralino physics in the context of the minimal supersymmetric model (MSSM), where CP violation induced by complex $M_1$ and $\mu$ parameters is allowed. The formalism is based on the construction of neutralino projectors, and can be directly generalized to non-minimal SUSY models involving any number of neutralinos. It extends a previous work applied to the real SUSY parameter case. In MSSM, the method allows to describe all physical observables related to a specific neutralino, in terms of its CP eigenphase and three complex numbers called its "reduced projector elements". As the experimental knowledge on the neutralino-chargino sectors will be being accumulated, the problem of extracting the various SUSY parameters will arise. Motivated by this, we consider various scenarios concerning the quantities that could be first measured. Analytical disentangled expressions determining the related SUSY parameters from them, are then derived, which also emphasize the efficiency of the formalism.
Gounaris G. J.
Mouel Christophe Le
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