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SUMMARY:Properties of the minimal U(1)_B-L extension of the SM - Lorenzo B
 asso (Southampton)
DTSTART:20110203T160000Z
DTEND:20110203T170000Z
UID:TALK29094@talks.cam.ac.uk
CONTACT:Steve Chun Hay Kom
DESCRIPTION:In this talk I will review the results we obtained for the so 
 called B-L model\, a minimal U(1) extension of the SM related to the Baryo
 n minus Lepton charge.\n\nThree heavy Majorana neutrinos are required for 
 the anomaly cancellation\, thereby naturally providing neutrino masses thr
 ough a dynamical implementation of the\nsee-saw mechanism.  This minimal e
 xtension also includes one new vector state (Z') and an additional Higgs b
 oson. I will hence present the results of our investigation of the phenome
 nology of the new states\, discussing in detail each sector and its conseq
 uences for collider searches.  New interesting signatures arise: for insta
 nce\, multilepton decays of the Z' boson and of the Higgs boson(s) as well
  as distinctive displaced vertices. The allowed parameter space and the pr
 esent experimental constraints will also be discussed.
LOCATION:Seminar Room B\, Rutherford Building\, Cavendish Laboratory
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