S-Matrix Approach to the $Z$ Line Shape

Details S-Matrix Approach to the $Z$ Line Shape S-Matrix Approach to the $Z$ Line Shape

1995-08-29

arxiv.org/abs/hep-ph/9508390v1

Phys.Lett. B273 (1991) 513-518

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTex, 1 table, a uuencoded file containing the latex file is available at ftp://ftp.ifh.de/pub/preprint/desy91-111.u

Scientific paper

10.1016/0370-2693(91)90307-C

We analyze the $Z$ line shape assuming the existence of an analytic, unitary S-matrix. As an example, from hadron production at LEP we determine $M_{Z}=91.134 \pm 0.020 \pm 0.020 \: ({\rm LEP})$ GeV, $\Gamma_{Z}=2.506 \pm 0.018$ GeV. This is in accordance with earlier results after performing a shift of the $Z$ mass value of about $\frac{1}{2}\Gamma_Z^2/M_Z = 34$ MeV. The cross section and related observables may be described by a small number of additional degrees of freedom without relying on a specific field-theoretic model.

Affiliated with

Also associated with

No associations

Rating

S-Matrix Approach to the $Z$ Line Shape 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 S-Matrix Approach to the $Z$ Line Shape, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and S-Matrix Approach to the $Z$ Line Shape will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-437820