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TZID:Europe/Vienna
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DTSTART:20170326T030000
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DTSTART:20161030T020000
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BEGIN:VEVENT
DTSTAMP:20260428T111748Z
UID:58bfed76651ab212571152@ist.ac.at
DTSTART:20170321T110000
DTEND:20170321T130000
DESCRIPTION:Speaker: Anna Soter\nhosted by Mikhail Lemeshko\nAbstract: The 
 ASACUSA experiment at CERN carried out precision laser spectroscopy experi
 ments on an composite matter-antimatter bound system called antiprotonic h
 elium. These three-body metastable exotic atoms are formed spontaneously i
 n helium targets\, when a stopping antiproton is replacing one of the elec
 trons of a ground state helium atom. The remaining 1s-electron protects th
 e antiproton in near-circular Rydberg states during collisions\, such that
  these states can sustain microsecond-scaled lifetimes. By comparing the 3
 -body relativistic QED predictions to the measured transition frequencies\
 , the antiproton-to-electron mass ratio can be deduced to high precision.\
 n
LOCATION:Seminar room Big Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:jdeanton@ist.ac.at
SUMMARY:Anna Soter: Laser spectroscopy of antiprotonic helium
URL:https://talks-calendar.ista.ac.at/events/365
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