Experimental tests of QED in bound and isolated systems – Lesson 3
Lucile Julien · 2012
Experimental tests of QED in bound systemsAlready discussed :• Spectroscopy of hydrogen and helium atoms including experimental methodsIn this third lecture :• Pure leptonic atomic systems : positronium and muonium• Other exotic atoms : muonic helium and antiprotonic helium • Muonic hydrogen (proton radius puzzle)• He + ion (electronic and muonic)• Highly charged ions : H-like, Li-like and He-like• g -2 mesurements : ions, electron, muon• determinations of the fine structure constantRecent measurements performed in Paris 4.6 x 10 -9 6.6 x 10 -10 1370 spectra have been recorded-1 = 137.035999 037 (91) Result :