BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-9475
DTSTART:20251121T160000Z
DTEND:20251121T180000Z
DTSTAMP:20260410T212847Z
LAST-MODIFIED:20251020T140612Z
LOCATION:Chamberlin Hall Room 5280
SUMMARY:Measuring the Flavor Composition of the Cosmic Neutrino Flux a
 t High Energies with IceCube\, Preliminary Exam\, Hannah Erpenbeck
DESCRIPTION:The IceCube Neutrino Observatory detects neutrinos by inst
 rumenting 1 km3 of deep glacial ice with photomultiplier tubes. These 
 detections allow for the study of possible astrophysical neutrino sour
 ces and the measurement of the diffuse astrophysical neutrino flux. Th
 e flavor composition of the measured flux is a very important componen
 t in understanding and modeling the astrophysical neutrino flux. In ad
 dition\, an improved measurement of the flavor composition of the astr
 ophysical neutrino flux at Earth allows us to infer the flavor composi
 tion at the sources and thus provides insights into neutrino productio
 n mechanisms. I will present the plan for a new flavor analysis using 
 a combination of datasets used within the IceCube Collaboration. Previ
 ous flavor measurements with IceCube focused on individual samples tar
 geting distinct event types\, mostly dominated by events with interact
 ion vertices inside the detector. Building on existing efforts\, I pla
 n to perform such a measurement on an expanded dataset. Such a sample 
 includes contained and uncontained events\, incorporates improved ice 
 modeling\, and achieves the highest statistics for the high-energy neu
 trino flux. These updates in event classification promise improvement 
 in the sensitivity of the flavor measurement. Identifying double-casca
 des among tracks and cascades is a continuous effort\, and the main fo
 cus of my talk.
URL:https://www.physics.wisc.edu/events/?id=9475
END:VEVENT
END:VCALENDAR