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UID:UW-Physics-Event-8683
DTSTART:20240524T160000Z
DTEND:20240524T180000Z
DTSTAMP:20260413T190843Z
LAST-MODIFIED:20240312T212057Z
LOCATION:B343 Sterling or https://uwmadison.zoom.us/j/6997728434?pwd=c
 HE5YlpZbEdFTHhKUy9PcDd3dDhlQT09
SUMMARY:Measurement of the Neutrino Mass Ordering with IceCube DeepCor
 e\, Thesis Defense\, Maria Prado Rodriguez\, Physics Graduate Student
DESCRIPTION:Although the Standard Model is our current best theory for
  describing the building blocks of the universe\, there are still seve
 ral important questions that it does not answer. Some of these include
 : How does gravity\, dark matter\, and dark energy fit into the Standa
 rd Model? Why is the universe made up of more matter than anti-matter?
  More importantly for this work\, the Standard Model predicts that neu
 trinos should be massless particles. However\, with the discovery of n
 eutrino oscillations\, it was confirmed that neutrinos actually have n
 on-zero mass. But why does this happen? To be able to answer this ques
 tion\, the ordering of the neutrino masses became a crucial piece of t
 he puzzle as all of the possible testable theories depend greatly on w
 hether the mass ordering is normal (m3&gt\;m2&gt\;m1) or inverted (m2&
 gt\;m1&gt\;m3). IceCube is an ice-Cherenkov neutrino detector deployed
  about 1.5 kilometers below the surface of the South Pole. Using DeepC
 ore\, a more densely instrumented volume of ice near the bottom of the
  detector\, this work studies the mass ordering through a measurement 
 of the oscillation patterns of a 9.28-year sample of atmospheric neutr
 inos using a frequentist statistical analysis. The main goal of this w
 ork is to provide a valuable contribution to help resolve the mass ord
 ering question as this measurement would be completely independent of 
 the parameter currently creating a tension for existing results by oth
 er experiments. Another goal is to serve as a high-energy complement t
 o existing measurements as these have been generated using neutrinos a
 t lower energies.
URL:https://www.physics.wisc.edu/events/?id=8683
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