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SUMMARY:The LXe calorimeter and the pixelated timing counter in the MEG II
  experiment
DTSTART;VALUE=DATE-TIME:20140228T020000Z
DTEND;VALUE=DATE-TIME:20140228T022500Z
DTSTAMP;VALUE=DATE-TIME:20261014T224246Z
UID:indico-contribution-86@indico.inp.nsk.su
DESCRIPTION:Speakers: Toshiyuki Iwamoto (The University of Tokyo)\nThe pur
 pose of the MEG experiment is to look for a lepton flavor violating μ→e
 γ decay with an unprecedented sensitivity\, and we set an upper limit of 
 the branching ratio for this decay\, 5.7×10⁻¹³ at 90% C.L. in 2013 wh
 ich is twenty times more stringent limit than the previous experiment\, ME
 GA. Since the sensitivity improvement of the MEG experiment was limited by
  the accidental background\, we have considered the major detector upgrade
 . A proposal was submitted to PSI committee\, and was approved by PSI in 2
 013\, which aims for a sensitivity enhancement of one order of magnitude c
 ompared to the final MEG result.\nHere I will mainly introduce you two com
 ponents of the MEG detector\, a gamma-ray calorimeter with 900 l liquid xe
 non (LXe)\, and a pixelated timing counter. The LXe detector will be impro
 ved by increasing the granularity at the incident face\, by replacing the 
 current PMTs with a larger number of smaller photosensors (MPPC) and optim
 izing the photosensor layout also on the lateral faces. A new highly segme
 nted\, fast timing counter array will replace the old system to allow impr
 oved timing resolution capabilities.\n\nhttps://indico.inp.nsk.su/event/0/
 contributions/86/
LOCATION:
URL:https://indico.inp.nsk.su/event/0/contributions/86/
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