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About helicity conservation in gauge boson scattering at high energy

G. J. Gounaris·F. M. Renard
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Abstract

We remark that the high energy gauge boson scattering processes involving two-body initial and final states, satisfy certain selection rules described as helicity conservation of the \underline{gauge boson} amplitudes (GBHC). These rules are valid at Born level, as well as at the level of the leading and sub-leading 1-loop logarithmic corrections, in both the Standard Model (SM) and the Minimal Supersymmetric Standard Model (MSSM). A "fermionic equivalence" theorem is also proved, which suggests that GBHC is valid at all orders in MSSM at sufficiently high energies, where the mass suppressed contributions are neglected.

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G. J. Gounaris, F. M. Renard. 2005-03-04. About helicity conservation in gauge boson scattering at high energy. https://doi.org/10.1103/physrevlett.94.131601

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