How to define physical properties of unstable particles

Details How to define physical properties of unstable particles How to define physical properties of unstable particles

2009-10-22

arxiv.org/abs/0910.4280v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 3 figures, REVTeX 4

Scientific paper

In the framework of effective quantum field theory we address the definition of physical quantities characterizing unstable particles. With the aid of a one-loop calculation, we study this issue in terms of the charge and the magnetic moment of a spin-1/2 resonance. By appealing to the invariance of physical observables under field redefinitions we demonstrate that physical properties of unstable particles should be extracted from the residues at complex (double) poles of the corresponding S-matrix.

Affiliated with

Also associated with

No associations

Rating

How to define physical properties of unstable particles 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 How to define physical properties of unstable particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and How to define physical properties of unstable particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-690769