BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Shuaixiang Zhang (Indiana)\, "Michel Electron Studies in the DUNE 
 Far Detector Prototypes"
DTSTART:20260716T190000Z
DTEND:20260716T210000Z
DTSTAMP:20260718T141900Z
UID:indico-event-33561@indico.bnl.gov
DESCRIPTION:Deep Underground Neutrino Experiment (DUNE) is the next-genera
 tion accelerator neutrino experiment\, aiming to solve the mysteries of ne
 utrinos. To assess and verify the future operations of the DUNE 17-kiloton
  liquid argon time projection chamber (LArTPC) Far Detector modules\, Prot
 oDUNEs are built and operated at CERN.\n \nIn this talk\, I will present 
 my work on Michel electrons -- the decay products of stopping cosmic muons
  detected in ProtoDUNE. Michel electrons have well-characterized energy an
 d timing structures (typically < 60 MeV)\, making them valuable low-energy
  calibration sources relevant for solar and supernova neutrino detection. 
 Michel electrons also carry charge-sign information: stopping mu^+ always 
 decay\, whereas only ~25% of stopping mu^- decay\, with the rest being cap
 tured by nucleus. This asymmetry enables data-driven separation of mu^+ an
 d mu^- in liquid argon detectors\, with implications for atmospheric nu_mu
  / anti-nu_mu identification.\n \nI will show the light-charge joint resp
 onses of Michel electrons\, with particular emphasis on their optical sign
 atures. Michel electrons are first identified using TPC charge information
 \, and their corresponding optical signals are obtained through precise ti
 ming matching with the photon detection system (PDS). This procedure isola
 tes PDS activity within the Michel time window and reveals the capability 
 of the PDS to independently identify Michel electrons. The final dataset p
 rovides a high-purity sample with well-characterized optical features. Usi
 ng this sample\, I will also show a preliminary measurement of the mu^- de
 cay lifetime in liquid argon.\n \n \nhttps://cern.zoom.us/j/7145024763?p
 wd=TldPQ0MxTWpLMFpla28vTEt1akVyZz09\n\nhttps://indico.bnl.gov/event/33561/
URL:https://indico.bnl.gov/event/33561/
END:VEVENT
END:VCALENDAR