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TITLE Lepton-portal dark matter in hidden valley model and the DAMPE recent results
KIAS AUTHORS Tang, Yi-Lei
JOURNAL SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2018
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ABSTRACT We study the recent e (+/-) cosmic ray excess reported by DAMPE in a Hidden Valley Model with lepton-portal dark matter. We find the electron-portal can account for the excess well and satisfy the DM relic density and direct detection bounds, while electron+muon/electron+muon+tau-portal suffers from strong constraints from lepton flavor violating observables, such as mu -> 3e. We also discuss possible collider signatures of our model, both at the LHC and a future 100 TeV hadron collider.
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