Dispersive derivation of the trace anomaly

Details Dispersive derivation of the trace anomaly Dispersive derivation of the trace anomaly

1997-01-28

arxiv.org/abs/hep-ph/9701397v2

Z.Phys. C76 (1997) 561-565

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages LATEX, minor changes in references

Scientific paper

We present a simple derivation of the one-loop trace anomaly in spinor QED through dispersion relations, avoiding completely any ultraviolet regularization. The anomaly can be expressed as a convergent sum rule for the imaginary part of a relevant formfactor. In the massless limit, the imaginary part produces a delta-function singularity at zero external momentum squared. Such a treatment reveals an "infrared face" of the trace anomaly, in striking similarity with the well-known case of the axial anomaly.

Affiliated with

Also associated with

No associations

Rating

Dispersive derivation of the trace anomaly 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 Dispersive derivation of the trace anomaly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersive derivation of the trace anomaly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-672688