A Problematic Set of Two-Loop Self-Energy Corrections

Details A Problematic Set of Two-Loop Self-Energy Corrections A Problematic Set of Two-Loop Self-Energy Corrections

2002-06-23

arxiv.org/abs/hep-ph/0206224v1

NewJ.Phys.4:49,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 3 figures (New J. Phys., in press, submitted 28th May)

Scientific paper

10.1088/1367-2630/4/1/349

We investigate a specific set of two-loop self-energy corrections involving squared decay rates and point out that their interpretation is highly problematic. The corrections cannot be interpreted as radiative energy shifts in the usual sense. Some of the problematic corrections find a natural interpretation as radiative nonresonant corrections to the natural line shape. They cannot uniquely be associated with one and only one atomic level. While the problematic corrections are rather tiny when expressed in units of frequency (a few Hertz for hydrogenic P levels) and do not affect the reliability of quantum electrodynamics at the current level of experimental accuracy, they may be of importance for future experiments. The problems are connected with the limitations of the so-called asymptotic-state approximation which means that atomic in- and out-states in the S-matrix are assumed to have an infinite lifetime.

Affiliated with

Also associated with

No associations

Rating

A Problematic Set of Two-Loop Self-Energy Corrections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Problematic Set of Two-Loop Self-Energy Corrections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Problematic Set of Two-Loop Self-Energy Corrections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-231916