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2014

Pseudo-goldstino and electroweak gauginos at the LHC

Hikasa, Ken-ichi, Liu, Tao, Wang, Lin et al.

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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 5-sigma.

Pseudo-goldstino and electroweak gauginos at the LHC · Around

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