Physics at Virginia

"Low-Mass Dimuons at CDF: Dark Forces, Higgs Bosons, and Data Anomalies"

Chris Hays , Oxford University
[Host: Chris Neu]
Various studies of collider and cosmological data have found multilepton sources that are not well described by the usual models. These studies have motivated a theory of a new force at the O(1 GeV) energy scale that interacts with standard-model particles only through a high-mass intermediary. This new 'dark' force could produce multiple leptons at small angles, dubbed 'lepton jets,' at hadron colliders. I describe a general CDF search for high-momentum muon pairs with sensitivity to any new low-mass resonance. I also briefly discuss the possibility that the Higgs boson is a source of high-momentum dimuons, with a mass lower than the usual LEP bounds and more consistent with supersymmetry and the global electroweak fits.
High Energy Physics Seminar
Wednesday, May 5, 2010
3:30 PM
Physics Building, Room 204
Note special room.

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