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Magnetic and electric dipoles for physics beyond the standard model

Posted on:2010-08-16Degree:Ph.DType:Dissertation
University:University of Illinois at ChicagoCandidate:Heo, Jae HoFull Text:PDF
GTID:1440390002983065Subject:Physics
Abstract/Summary:
The magnetic and electric dipole moments of particles have been significant topics to explore physics beyond the standard model. The anomalous magnetic dipole moment of the muon has shown a sizable deviation from the standard model prediction. Many people consider that the deviation comes from new physics beyond the standard model, so it provides a significance for new physics beyond the standard model. We discuss its significance by building a model in the standard model extension. The search for the electric dipole will uncover the violation of one of the fundamental discrete symmetries, CP violation. The charged leptons do not have CP violating interactions in the standard model. A lepton electric dipole moment is induced by the CKM phase in the quark sector via a diagram with a closed quark loop, so any positive detection of an electric dipole moment will imply the presence of a non-CKM CP violating source and lead to the scale of new physics. We consider new CP violating sources, and predictions of the sizable electric dipole moments are discussed. Finally, Dirac fermionic dark matter near the electroweak scale with nonzero dipoles is introduced and its implications are discussed. In addition, QCD radiative corrections to pair annihilation of spin-1 bosonic dark matter is presented and we show that the radiative correction can play a significant role to analyze dark matter phenomenology for the certain models.
Keywords/Search Tags:Physics beyond the standard model, Electric dipole, CP violating, Dark matter
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