Amplitudes for $gg \to VV'$ and their high energy SUSY constraints

Details Amplitudes for $gg \to VV'$ and their high energy SUSY constraints Amplitudes for $gg \to VV'$ and their high energy SUSY constraints

2010-05-27

arxiv.org/abs/1005.5005v3

Int.J.Mod.Phys.A26:209-233,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 39 figures, minor corrections Version to appear in International Journal of Modern Physics A

Scientific paper

10.1142/S0217751X1105124X

We study how the property of asymptotic helicity conservation (HCns), expected for any 2-to-2 process in the minimal supersymmetric model (MSSM), is realized in the processes $gg \to \gamma\gamma,\gamma Z,ZZ,W^+W^-$, at the 1loop electroweak order and very high energies. The violation of this property for the same process in the standard model (SM), is also shown. This strengthens the claim that HCns is specific to the renormalizable SUSY model, and not generally valid in SM. HCns strongly reduces the number of non-vanishing 2-to-2 amplitudes at asymptotic energies in MSSM. Consequences at LHC and higher energy colliders are identified.

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