BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3022
DTSTART:20130516T193000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T002255Z
LAST-MODIFIED:20130513T144204Z
LOCATION:4274 Chamberlin Hall
SUMMARY:Reanalysis of the Reactor Neutrino Anomaly\, NPAC (Nuclear/Par
 ticle/Astro/Cosmo) Forum\, Anna Hayes-Sterbenz\, Los Alamos National L
 aboratory
DESCRIPTION:Recent analyses of the anti-neutrino flux from reactors ha
 s suggested that shot baseline reactor neutrino experiments saw only a
 bout 92.7% of the expected flux\, a result is commonly referred to as 
 the Reactor Neutrino Anomaly. In this talk I will present an independe
 nt analysis of this anomaly and the underlying nuclear physics determi
 ning the shape and magnitude of reactor neutrino spectra. In this anal
 ysis\, we find that corrections due to forbidden beta-decays of fissio
 n fragments result in significant changes to the shape of the spectrum
 . These changes\, which have not been taken into account in earlier an
 omaly analyses\, leads to more anti-neutrinos being emitted at low (<2
 .5 MeV) and high energies (>4.5 MeV)\, and fewer anti-neutrinos betwee
 n 2.5-4.5 MeV. The uncertainty in the shape of the spectrum also incre
 ases when the forbidden transitions are included. The measured spectru
 m from the near detector at Daya Bay should greatly help to reduce the
 se uncertainties.  
URL:https://www.physics.wisc.edu/events/?id=3022
END:VEVENT
END:VCALENDAR