BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3575
DTSTART:20150130T210000Z
DTEND:20150130T220000Z
DTSTAMP:20260419T142547Z
LAST-MODIFIED:20150126T192519Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Hunting for Hierarchies in PSL2(7)\, Theory Seminar (High Ener
 gy/Cosmology)\, Michael Jay Perez\, University of Florida
DESCRIPTION:I will give a review of recent work done in collaboration 
 with G. Chen and P. Ramond (arXiv 1412.6107). Attention is drawn to a 
 finely tuned Seesaw Majorana matrix linked to the charge 2/3 quarks hi
 erarchy. With a diagonal Dirac neutrino matrix\, it gives tribimaximal
  mixing\, and a normal hierarchy for the light neutrinos. We present a
  model with the family group PSL2(7) where this Majorana matrix is nat
 ural\, and the top quark hierarchy\, determined by the vacuum values o
 f familon fields\, is transferred to Higgs fields with family quantum 
 numbers. PSL2(7)-invariant couplings then produce a μ-term at a scale
  commensurate with neutrino and quark masses\, and a hierarchy of thir
 teen orders of magnitude. This results in only one Higgs field (per hy
 percharge sector) with a μ-mass ∼10−100 GeV. With SUSY soft break
 ing\, its vacuum value is automatically aligned to give masses to the 
 top and bottom quarks.
URL:https://www.physics.wisc.edu/events/?id=3575
END:VEVENT
END:VCALENDAR