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PRODID:UW-Madison-Physics-Events
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SEQUENCE:3
UID:UW-Physics-Event-6483
DTSTART:20210804T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T192024Z
LAST-MODIFIED:20210802T222919Z
LOCATION:on zoom-link below
SUMMARY:Many-body Theory of Collective Neutrino Oscillations\, Thesis 
 Defense\, Michael Cervia\, Physics PhD Graduate Student
DESCRIPTION:The neutrino-neutrino interaction is a tree-level process 
 of the Standard Model that is still yet to be observed. Moreover\, in 
 tandem with vacuum flavor oscillations and given a sufficiently large 
 density of neutrinos\, this interaction can substantially impact the f
 lavor content of the neutrino ensemble – an interplay of one- and tw
 o-body neutrino behavior known as “collective neutrino oscillations.
 ” While mean-field approximations have been used to gather a basic i
 ntuition for the collective behavior of a neutrino ensemble\, little i
 s known about how particle correlations scale with the size of the neu
 trino ensemble for realistic physical parameters in environments such 
 as supernovae (SNe) and the Early Universe (EU). We therefore present 
 a many-body approach to studying collective neutrino interactions in t
 wo flavors (i.e.\, e and x) for the forward scattering of N neutrinos.
  We present results for N~10 and discuss implications of our work for 
 observable corrections to mean-field predictions of neutrino flavor sp
 ectra in SNe fluxes and nuclear isotope abundances.
\nZoom link: https
 ://uwmadison.zoom.us/j/93206397370?pwd=dW5Qd1MzMUFLQXpWTUcrcVFNQU0wZz0
 9
\n
URL:https://www.physics.wisc.edu/events/?id=6483
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