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Title: Non-universal SUSY models, $$g_\mu -2$$, $$m_H$$ and dark matter

Journal Article · · European Physical Journal. C, Particles and Fields (Online)
 [1];  [2];  [3]
  1. King’s College London (United Kingdom); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  2. University of Minnesota, Minneapolis, MN (United States)
  3. University of Minnesota, Minneapolis, MN (United States); National and Kapodistrian University of Athens (Greece)

We study the anomalous magnetic moment of the muon, gμ – 2 ≡ 2aμ, in the context of supersymmetric models beyond the CMSSM, where the unification of either the gaugino masses M1,2,3 or sfermion and Higgs masses is relaxed, taking into account the measured mass of the Higgs boson, mH, the cosmological dark matter density and the direct detection rate. We find that the model with non-unified gaugino masses can make a contribution Δaμ ~ 20 x 10–10 to the anomalous magnetic moment of the muon, for example if M1,2 ~ 600 GeV and M3 ~ 8 TeV. The model with non-universal sfermion and Higgs masses can provide even larger Δaμ ~ 24 x 10–10 if the sfermion masses for the first and the second generations are ~400 GeV and that of the third is ~8 TeV. We discuss the prospects for collider searches for supersymmetric particles in specific benchmark scenarios illustrating these possibilities, focusing in particular on the prospects for detecting the lighter smuon and the lightest neutralino.

Research Organization:
University of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0011842
OSTI ID:
2479341
Journal Information:
European Physical Journal. C, Particles and Fields (Online), Journal Name: European Physical Journal. C, Particles and Fields (Online) Journal Issue: 10 Vol. 84; ISSN 1434-6052
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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