Extended technicolor contribution to the Zbb vertex

Details Extended technicolor contribution to the Zbb vertex Extended technicolor contribution to the Zbb vertex

1995-04-19

arxiv.org/abs/hep-ph/9504332v1

Phys.Rev. D52 (1995) 5374-5377

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex (using subeqnarray.sty), no figures

Scientific paper

10.1103/PhysRevD.52.5374

We show that the flavor-diagonal gauge boson of the extended technicolor theory contributes with opposite sign to the standard model correction for the $Zbb$ vertex. This mechanism can naturally explain the deviation of the LEP result from the standard model prediction for the partial width $\Gamma(Z \rightarrow b{\bar b})$. A smaller value of the QCD coupling, $\alpha_s(m_Z) \simeq 0.115$, is then preferred by the $\Gamma(Z \rightarrow \mbox{hadron})$ data, which is consistent with both the recent Lattice-QCD estimate and the Particle Data Group average.

Affiliated with

Also associated with

No associations

Rating

Extended technicolor contribution to the Zbb vertex 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 Extended technicolor contribution to the Zbb vertex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended technicolor contribution to the Zbb vertex will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-322073