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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-8444
DTSTART:20231116T203000Z
DTEND:20231116T213000Z
DTSTAMP:20260414T005911Z
LAST-MODIFIED:20231115T165948Z
LOCATION:Chamberlin 5280  or https://wipac-science.zoom.us/j/942542772
 22?pwd=QVJ1dHNCaFdmYnk1Vzk2TWJuQ3RwUT09
SUMMARY:Detecting the highest energy neutrinos...with radar? A new too
 l in the astroparticle toolbox\, NPAC (Nuclear/Particle/Astro/Cosmo) F
 orum\, Steven Prohira\, The University of Kansas
DESCRIPTION:Detection of ultrahigh energy (UHE) neutrinos is key to id
 entifying the most energetic objects and processes in the universe. Th
 ese are the sources of UHE cosmic rays that have been detected at eart
 h with energies exceeding 1 Joule per nucleon (roughly the kinetic ene
 rgy of a bird in flight). As UHE cosmic messengers\, neutrinos are unp
 aralleled for their ability to travel from their sources to the Earth\
 , interacting only weakly with matter\, and therefore able to traverse
  great distances unimpeded. UHE neutrinos can also provide a powerful 
 handle on physics beyond the standard model. However\, their flux decr
 eases significantly with increasing energy. This\, coupled with their 
 weak interaction\, makes them very challenging to detect at energies a
 bove those successfully probed by IceCube.
\n    In this talk\, I will
  discuss the extensive experimental work that has been performed to me
 et these challenges. I will start with a general overview of the exper
 imental landscape\, and then focus on our new experimental effort\, th
 e Radar Echo Telescope (RET)\, which uses well-known radar technology 
 to attempt detection of the cascade produced by these UHE neutrinos as
  they interact in polar ice. I will discuss the theory and storied his
 tory of the radar echo method\, and recent experimental work including
  our summer 2023 deployment of a prototype detector. I will conclude w
 ith a discussion of the UHE neutrino landscape in the near future\, an
 d the exciting possibilities of complementary measurements of the UHE 
 neutrino sky.
URL:https://www.physics.wisc.edu/events/?id=8444
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