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SUMMARY:Testing matter-antimatter symmetry with the hyperfine splitting of
  antihydrogen
DTSTART:20260929T193000Z
DTEND:20260929T203000Z
DTSTAMP:20260821T061200Z
UID:indico-event-33352@indico.bnl.gov
CONTACT:ebrost@bnl.gov
DESCRIPTION:Speakers: Tim Friesen\n\nThe ALPHA collaboration at CERN has b
 een leading the way in testing fundamental symmetries using magnetically t
 rapped antihydrogen. Recent breakthroughs include precision spectroscopy o
 f the 1S–2S transition\, fine structure measurements\, laser cooling of 
 antihydrogen\, and the first-ever gravitational free-fall study of antihyd
 rogen. Advances in magnetic field control and enhanced antihydrogen trappi
 ng rates\, enabled by  ion-assisted antihydrogen production\, have recentl
 y allowed us to achieve a 4~ppm measurement of the antihydrogen ground-sta
 te hyperfine splitting\, an improvement of roughly two orders of magnitude
  over previous determinations. \n \nIn this talk\, I will motivate hyperf
 ine spectroscopy of antihydrogen as a test of matter-antimatter symmetry (
 CPT symmetry)\, present our latest spectroscopy results\, and outline pros
 pects for pushing antihydrogen spectroscopy to even higher precision in th
 e near future.\n \n \nJoin videoconference\n\nhttps://indico.bnl.gov/eve
 nt/33352/
LOCATION:Large Seminar Room
URL:https://indico.bnl.gov/event/33352/
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