Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-06-22
Phys.Lett. B627 (2005) 161-173
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, minor changes, published version to appear in PLB
Scientific paper
10.1016/j.physletb.2005.08.053
Starting out from the most general, gauge invariant and renormalizable scalar potential of the R-parity violating MSSM and performing a calculable rotation to the scalar fields we arrive at a basis where the sneutrino VEVs are zero. The advantage of our rotation is that, in addition, we obtain diagonal soft supersymmetry breaking sneutrino masses and all potential parameters and VEVs real, proving that the MSSM scalar potential does not exhibit spontaneous or explicit CP-violation at tree level. The model has five CP-even and four CP-odd physical neutral scalars, with at least one CP-even scalar lighter than M_Z. We parametrise the neutral scalar sector in a way that resembles the parametrisation of the R-parity conserving MSSM, analyze its mass spectrum, the coupling to the gauge sector and the stability of the potential.
Dedes Athanasios
Rimmer Steven
Rosiek Janusz
Schmidt-Sommerfeld Maximilian
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