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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:4
UID:UW-Physics-Event-8526
DTSTART:20231212T183000Z
DTEND:20231213T000000Z
DTSTAMP:20260414T025150Z
LAST-MODIFIED:20231212T180558Z
LOCATION:2314 Chamberlin
SUMMARY:Subatomic to Supernova: Two unrelated tales of neutrinos and d
 ark matter\, Preliminary Exam\, Daniel Heimsoth\, Physics PhD Graduate
  Student
DESCRIPTION:I will present my work on two recent papers. First\, super
 novae expel a large fraction of their energy in neutrinos\, making the
 m a potentially useful detection channel to understand properties of s
 tellar core collapse. With the construction of new\, larger neutrino e
 xperiments such as Hyper-Kamiokande\, DUNE\, and IceCube Gen2 in the n
 ear future\, we will have the capability to measure the time-dependent
  neutrino flux from nearby core-collapse supernovae. I will show how u
 sing the neutrino signal from a theorized hadron-quark phase transitio
 n during core collapse can allow us to not only triangulate the positi
 on of the supernova in the sky to good precision but also set limits o
 n the absolute neutrino mass scale.<br>
\n<br>
\nTurning our attention
  from neutrinos to dark matter\, I will then describe my work on quant
 ifying uncertainties in direct detection dark matter experiments stemm
 ing from uncertainties in nuclear modeling. As these experiments shift
  from considering only the spin-independent and spin-dependent operato
 rs to a complete set of operators coupling dark matter to nuclei\, it 
 becomes especially important to understand all sources of uncertainty.
  I will explain how we calculated the nuclear model uncertainties for 
 xenon\, a common choice of target in direct detection experiments\, an
 d how these uncertainties can be significantly large for certain opera
 tors.
URL:https://www.physics.wisc.edu/events/?id=8526
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