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arXiv · 1403.5731

Pseudo-goldstino and electroweak gauginos at the LHC

Ken-ichi Hikasa·Tao Liu·Lin Wang·Jin Min Yang
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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 5-sigma.

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Ken-ichi Hikasa, Tao Liu, Lin Wang, Jin Min Yang. 2014-06-26. Pseudo-goldstino and electroweak gauginos at the LHC. https://doi.org/10.1007/jhep07(2014)065

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