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arXiv · 1504.00504

Probing Bino-Gluino Coannihilation at the LHC

Natsumi Nagata·Hidetoshi Otono·Satoshi Shirai
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Abstract

It has been widely known that bino-like dark matter in the supersymmetric (SUSY) theories in general suffers from over-production. The situation can be drastically improved if gluinos have a mass slightly heavier than the bino dark matter as they reduce the dark matter abundance through coannihilation. In this work, we consider such a bino-gluino coannihilation scenario in high-scale SUSY models, which can be actually realized when the squark-mass scale is less than 100-1000 TeV. We study the prospects for exploring this bino-gluino coannihilation scenario at the LHC. We show that the searches for long-lived colored particles with displaced vertices offer a strong tool to test this scenario in collider experiments.

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Natsumi Nagata, Hidetoshi Otono, Satoshi Shirai. 2015-07-02. Probing Bino-Gluino Coannihilation at the LHC. https://doi.org/10.1016/j.physletb.2015.06.044

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