OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles

Details OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles

2001-02-23

arxiv.org/abs/hep-ph/0102283v2

Phys.Lett. B531 (2002) 225-230

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, no figures. 3 references are added, 2 misprints are corrected, minor changes in the text

Scientific paper

10.1016/S0370-2693(02)01435-1

A generalization of the on-mass-shell scheme of UV renormalization (the OMS-bar scheme) to the case of presence of unstable fundamental particles (like W and Z bosons) is proposed. Its basic ingredients are as follows: (i) the renormalized mass coincides with a real part of the position of the complex pole of the corresponding propagator, (ii) the imaginary part of the on-shell self-energy coincides with the imaginary part of the complex pole position. The latter property implies the gauge-invariance of the imaginary part of the on-shell self-energy in the OMS-bar scheme and its connection with the lifetime of an unstable particle. Starting with the three-loops this connection becomes nontrivial.

Affiliated with

Also associated with

No associations

Rating

OMS-bar scheme of UV renormalization in the presence of unstable fundamental 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 OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and OMS-bar scheme of UV renormalization in the presence of unstable fundamental particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-465751