Heavy bino and slepton for muon g-2 anomaly

In light of very recent E989 experimental result, we investigate the possibility that heavy sparticles explain the muon g - 2 anomaly. We focus on the bino-smuon loop in an effective SUSY scenario, where a light gravitino plays the role of dark matter and other sparticles are heavy. Due to the enhancement of left-right mixing of smuons by heavy higgsinos, the contribution of bino-smuon loop can sizably increase the prediction of muon g - 2 to the experimental value. Under collider and vacuum stability constraints, we find that TeV scale bino and smuon can still account for the new muon g - 2 anomaly. The implications for LHC phenomenology are also discussed. (C) 2021 The Authors. Published by Elsevier B.V.

Automated summary

The study suggests that TeV scale bino and smuon may still be effective in explaining the μon g - 2 anomaly, especially in the case of enhanced left-right mixing. Taking into account collider and vacuum stability constraints, this research has practical significance.