A beam of hydrogenic C5+12 atoms in the metastable 2S state has been produced. By quenching the state in a known motional electric field and measuring the decay length, an indirect measure of the Lamb shift S is obtained. A preliminary result of S=744 GHz, with a statistical uncertainty of less than 1%, is reported as compared with a theoretical prediction of S=783 GHz. Possible systematic effects which may reduce the discrepancy are considered.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)