Lepton-portal dark matter in hidden valley model and the DAMPE recent results |
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| Authors: | Yi-Lei Tang Lei Wu Mengchao Zhang Rui Zheng |
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| Affiliation: | 1.Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing,China;2.School of Physics,Korea Institute for Advanced Study (KIAS),Seoul,Korea;3.Center for Theoretical Physics of the Universe,Institute for Basic Science (IBS),Daejeon,Korea;4.Department of Physics,University of California,Davis,USA |
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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 μ→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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