| Article | |
| Report number | CERN-TH-1354 |
| Title | A new value for the Lamb shift |
| Author(s) | Petermann, Andreas (CERN) |
| Publication | 1972 |
| In: | Phys. Lett. B 38 (1972) 330-2 |
| DOI | 10.1016/0370-2693(72)90258-4 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | A recent analytic value of the alpha /sup 2/ slope of the Dirac form, factor of the free electron, from the crossed ladder diagram, is added to the contributions of the fourth order diagrams already evaluated by different workers. The sum is found to be F/sub 1/(0)/sub total/=( alpha /sup 2// pi /sup 2/)(- 4819/5184-49 pi /sup 2//432+/sup 1///sub 2/ pi /sup 2/ log 2-/sup 3///sub 4/ zeta (3))=( alpha /sup 2// pi /sup 2/)(0.4699). This contributes to the Lamb shift inH: ( alpha /sup 2// pi /sup 2/) alpha /sup 2//sub 1/2/m alpha /sup 2/ 0.4699=0.444 MHz. The total Lamb shift in H is then: S/sub H/=(2S/sub 1/2/-2P/sub 1/2/) /sub H/=1057.911+or-0.011 MHz (s.d.), and the separation Delta E/sub H /-S/sub H/: (2S/sub 3/2/-2S/sub 1/2/)/sub H/ =9911.115+or-0.031 MHz (s.d.). (15 refs). |
Corresponding record in: Inspire
Record created 2005-08-19, last modified 2011-08-11
