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Graviton Enhanced Uhe Neutrino Cross-Sections and Giant Air Showers

“…19 − 10 20 eV , including topological defects such as cosmic strings [6,7] and associated decays of heavy, relic particles [8,9], existence of neutral, stable, strongly interacting particles, such as a light gluino [10,11,12] or a monopole bound state [13,14], and violation of Lorentz invariance [15,16]. Much of this work requires that the primary particle responsible for generating these air showers is an exotic new particle which does not exist within the Standard Model.…”

Light gauginos — a solution to more than the EDMs?

“…This argument is used by many people for various other effects, too [8,9]. And there are measurements, that would favor the existence of light gauginos [5,8,[10][11][12], see especially the discussion in [11].…”

The decay $b\rightarrow s \gamma$ and the charged Higgs boson mass without R-parity

“…In addition, if gaugino masses are universal at the GUT scale, gluinos must be rather heavy considering the bound on the chargino mass from LEP2 [30], which makes the contribution smaller. We can ignore safely the light gluino window [31] because it is inconsistent with the experimental bound on the mass of the lightest Higgs boson in the MSSM [32]. In the decay amplitude [1], it appears the matrix Rt the rotation matrix which diagonalizes the stop quark mass matrix [33] necessary to take into account the left-right mixing in the stop mass matrix.…”