BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1209
DTSTART:20080912T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260506T200015Z
LAST-MODIFIED:20080827T212453Z
LOCATION:2241 Chamberlin Hall (coffee at 3:30 pm)
SUMMARY:Double Beta Decay-The Key to Neutrino Properties\, Physics Dep
 artment Colloquium\, Petr Vogel\, Caltech
DESCRIPTION:Experiments with solar\, atmospheric\, reactor and acceler
 ator neutrinos convincingly show that neutrinos are massive and mixed.
  But why are neutrinos so extremely light? Perhaps their mass has a di
 fferent origin\, and they are Majorana fermions\, unlike the charged l
 eptons and quarks that are Dirac fermions? Neutrinoless  ββ decay is
  the most sensitive probe available to test these ideas. I will first 
 review the history and status of the search for this mode of ββ deca
 y. Then I will describe my own work dealing with the evaluation of the
  nuclear matrix elements that govern the decay rate and the difficulti
 es of such calculations. Finally\, I will briefly review the worldwide
  program of experimental search for the neutrinoless ββ decay and it
 s relation to other searches for neutrino mass.
URL:https://www.physics.wisc.edu/events/?id=1209
END:VEVENT
END:VCALENDAR