Abstract
The multi-sector SUSY breaking predicts the existence of pseudo-goldstino, which could couple more strongly to visible fields than ordinary gravitino. Then the lightest neutralino and chargino can decay into a pseudo-goldstino plus a Z-boson, Higgs boson or W-boson. In this note we perform a Monte Carlo simulation for the direct productions of the lightest neutralino and chargino followed by the decays to pseudo-goldstino. Considering scenarios with higgsino-like, bino-like or wino-like lightest neutralino, we find that the signal-to-background ratio at the high luminosity LHC is between 6 and 25% and the statistical significance can be above 5σ.
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Hikasa, Ki., Liu, T., Wang, L. et al. Pseudo-goldstino and electroweak gauginos at the LHC. J. High Energ. Phys. 2014, 65 (2014). https://doi.org/10.1007/JHEP07(2014)065
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DOI: https://doi.org/10.1007/JHEP07(2014)065