The muon g − 2 and degenerate supersymmetry
1 Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Piazzale Aldo Moro 2, I-00185, Rome, Italy
2 Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
3 Department of Physics and Astronomy, University of Hawaii, Honolulu, HI 96822, USA
4 Centre for High Energy Physics, Indian Institute of Science, Bangalore 560 012, India
Published online: 26 April 2016
A degenerate supersymmetric particle spectrum can escape constraints from flavor physics and at the same time evade limits from the direct searches. If such a spectrum is light enough, it can also account for the observed value of the anomalous magnetic moment of the muon. Inspired by this, we consider a scenario where all the soft terms have approximately a common mass scale while allowing for small splittings. We study this scenario considering the constraints from Higgs mass, various B meson decays and the dark matter relic density. We find that, with superpartners ~ 800 – 1000 GeV, it is still possible to escape the present limits from the first run of LHC and flavor physics and can account for muon g − 2 within 2σ.
© Owned by the authors, published by EDP Sciences, 2016
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