High Energy Physics Seminars

ics High Energy
Wednesday, May 5, 2010
3:30 PM
Physics Building, Room 204
Chris Hays [Host: Chris Neu]
Oxford University
"Low-Mass Dimuons at CDF: Dark Forces, Higgs Bosons, and Data Anomalies"
ABSTRACT:
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.

To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. High Energy Physics Seminars), date, name of the speaker, title of talk, and an abstract (if available).