BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Sterile Neutrinos in Reactor and Accelerator Experiments - Alvaro 
 Hernandez Cabezudo (KIT)
DTSTART:20190314T160000Z
DTEND:20190314T170000Z
UID:TALK115945@talks.cam.ac.uk
CONTACT:Mathieu Pellen
DESCRIPTION:Neutrino oscillations are a well established phenomena\, which
  can be very well explained within the standard framework of three flavour
  neutrino oscillations. However\, some short-baseline experiments present 
 anomalies in both electron neutrino disappearance and electron neutrino ap
 pearance. \n\nIn the electron neutrino disappearance channel\, the Reactor
  anti-neutrino and Gallium anomalies\, which consist of a deficit of measu
 red neutrino events with respect to the predictions\, can be explained int
 roducing sterile neutrino oscillations within a 3+1 framework. A global an
 alysis of the electron neutrino disappearance data\, up to summer 2018\, i
 s in favor of sterile neutrino oscillations at the 3 \\sigma level with \\
 Delta m_{41}^2~1.3 eV^2 and |U_{e4}|~0.1.\n\nOn the other hand\, the elect
 ron neutrino appearance anomaly\, mainly driven by the MiniBooNE excess\, 
 is in strong tension\, at the 4.7 \\sigma level\, with the limits coming f
 rom the muon neutrino disappearance data. The fact that this tension is in
 dependent of any muon neutrino appearance data set and of the reactor anti
 neutrino anomaly\, rule out the MiniBooNE excess explanation in terms of s
 terile neutrino oscillations. An alternative and possible solution to the 
 MiniBooNE low energy excess\, based on a heavy neutrino decay\, will be al
 so presented.
LOCATION:Ryle Seminar Room no. 930\, Rutherford Building\, Cavendish Labor
 atory
END:VEVENT
END:VCALENDAR