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DTSTART;TZID=America/Los_Angeles:20180109T160000
DTEND;TZID=America/Los_Angeles:20180109T170000
DTSTAMP:20260416T065930
CREATED:20171120T104422Z
LAST-MODIFIED:20171120T104422Z
UID:679-1515513600-1515517200@rpm.physics.lbl.gov
SUMMARY:Oindree Banerjee (Ohio State University) "Searching for ultra-high-energy neutrinos with the Antarctic Impulsive Transient Antenna "
DESCRIPTION:Abstract:\n\nUltra-high-energy (> 10^18 eV) neutrinos remain undiscovered in this era of rapid growth in multi-messenger astronomy. These neutral and weakly-interacting particles can travel cosmic distances without attenuation and point straight back to their source\, rendering them promising messengers. Detection of these elusive particles requires an enormous instrumented volume of a dielectric material such as water\, ice\, salt\, etc. Use of radio Cherenkov method enables this at a relatively low cost. The Antarctic Impulsive Transient Antenna (ANITA) is a NASA-funded long-duration balloon experiment that is launched from near McMurdo Station\, Antarctica\, to fly over the continent in roughly circular orbits in the stratosphere for a month. ANITA looks for the radio signature from ultra-high-energy neutrino interaction in the ice below. There have been four flights of ANITA so far. I will review the principles underlying radio detection of neutrinos by ANITA\, the ANITA instrument and recent developments in the hardware and electronics of ANITA. I will show results from the currently ongoing search for a diffuse flux of neutrinos in the data from the third flight of ANITA.\n\nBio:\n\nI received my Bachelor’s degree in Physics from North Carolina State University. Currently\, I am a 5th year graduate student in Physics at Ohio State University. For the ANITA-IV mission\, I built\, tested and deployed electronics which\, for the first time\, were able to dynamically filter anthropogenic noise at tunable frequencies. These filters helped to triple the “effective livetime” of ANITA-IV compared to ANITA-III. In analysis\, I am working on new techniques for background rejection using data from the ANITA-II and ANITA-III flights.
URL:https://rpm.physics.lbl.gov/event/oindree-banerjee-ohio-state-university/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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