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

Abstract : 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.
Document type :
Preprints, Working Papers, ...
LPTA:10-086. 19 pages, 14 figures. 2010


https://hal.archives-ouvertes.fr/hal-00544020
Contributor : Logiciel Aigle <>
Submitted on : Tuesday, December 7, 2010 - 10:21:44 AM
Last modification on : Tuesday, December 7, 2010 - 10:21:53 AM

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  • HAL Id : hal-00544020, version 1
  • ARXIV : 1012.1114

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G. J. Gounaris, Jacques Layssac, Fernand Michel Renard. The processes of gluon fusion producing chargino or neutralino pairs at high energies. LPTA:10-086. 19 pages, 14 figures. 2010. <hal-00544020>

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