The processes of gluon fusion producing chargino or neutralino pairs at high energies

Details The processes of gluon fusion producing chargino or neutralino pairs at high energies The processes of gluon fusion producing chargino or neutralino pairs at high energies

2010-12-06

arxiv.org/abs/1012.1114v2

Int.J.Mod.Phys.A26:1253-1272,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Extended version to appear in International Journal of Modern Physics A 21 pages

Scientific paper

10.1142/S0217751X11052888

According to the helicity conservation (HCns) theorem, the sum of the helicities should be conserved, in any 2-to-2 processes in MSSM with R-parity conservation, at high energies; i.e. all amplitudes violating this rule, must vanish asymptotically. The realization of HCns in gluon-fusion to charginos or neutralinos is studied, at the one loop electroweak order (EW), and simple high energy expressions are derived for the non-vanishing helicity conserving (HC) amplitudes. These are very similar to the corresponding expressions for $gg \to W^+W^-, ZZ, \gamma Z, \gamma\gamma $ derived before. Asymptotic relations among observable unpolarized cross sections for many such processes are then obtained, some of which may hold at LHC-type energies.

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