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 enhance...

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Bibliographic Details
Published in:Nuclear physics. B 2021-08, Vol.969, p.115481, Article 115481
Main Authors: Gu, Yuchao, Liu, Ning, Su, Liangliang, Wang, Daohan
Format: Article
Language:English
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Summary: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.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2021.115481