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SUMMARY:The PANDA DIRC detectors at FAIR
DTSTART;VALUE=DATE-TIME:20170302T090500Z
DTEND;VALUE=DATE-TIME:20170302T092500Z
DTSTAMP;VALUE=DATE-TIME:20260613T060545Z
UID:indico-contribution-1620@indico.inp.nsk.su
DESCRIPTION:Speakers: Carsten Schwarz (GSI Helmholtzzentrum GmbH)\nThe PAN
 DA experiment at the FAIR facility will use antiproton beams on a fixed ta
 rget to investigate open questions \nin hadron physics in the momentum ran
 ge of 1.5-15 GeV/c. \nTwo DIRC detectors in the target spectrometer will p
 rovide \ncharged particle identification (PID) for pions and kaons. \nThe 
 Barrel DIRC covers polar angles \nbetween 22∘ and 140∘ and momenta bet
 ween 0.5 GeV/c and 3.5 GeV/c. \nIt is based on the successful BaBar DIRC d
 etector\, but with several \nkey improvements to perform π/K separation b
 etter than 3σ. \nIn the (forward) endcap region\, for polar angles betwee
 n 5∘ to 22∘\, \nthe Disc DIRC will cleanly separate π from K for mome
 nta \nup to 4 GeV/c. Both DIRC counters  will use lifetime-enhanced\nmicro
 channel plate PMTs \nfor photon detection in combination with fast readout
  electronics. \nThe radiators are made from highly polished synthetic fuse
 d silica\nto minimize the loss of photons propagating through the radiator
 s\nby total internal reflection and to ensure that the Cherenkov\nis conse
 rved. Geant4 simulations and\ntests with several prototypes at various tes
 t beam facilities have\nbeen used to evaluate the designs and validate the
  expected\nPID performance of both PANDA DIRC counters.\n\nhttps://indico.
 inp.nsk.su/event/8/contributions/1620/
LOCATION:
URL:https://indico.inp.nsk.su/event/8/contributions/1620/
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