The $K^\ast Kπ$ and $ρππ$ couplings in QCD

Details The $K^\ast Kπ$ and $ρππ$ couplings in QCD The $K^\ast Kπ$ and $ρππ$ couplings in QCD

1998-11-24

arxiv.org/abs/nucl-th/9811086v1

Eur.Phys.J. A4 (1999) 277-281

Physics

Nuclear Physics

Nuclear Theory

7 pages + 2 PS figures, submitted to Euro. Phys. J. A

Scientific paper

10.1007/s100500050230

The light cone QCD sum rules are derived for the $K^\ast K\pi$ coupling $g_{K^\ast K\pi} $ and the $\rho\pi\pi$ coupling $g_{\rho\pi\pi}$. The contribution from the excited states and the continuum is subtracted cleanly through the double Borel transform with respect to the two external momenta, $p_1^2$, $p_2^2=(p-q)^2$. Our result $g_{K^\ast K\pi}=(8.7\pm 0.5)$ and $g_{\rho\pi\pi}=(11.5\pm 0.8)$ is in good agreement with the experimental value.

Affiliated with

Also associated with

No associations

Rating

The $K^\ast Kπ$ and $ρππ$ couplings in QCD 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 The $K^\ast Kπ$ and $ρππ$ couplings in QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The $K^\ast Kπ$ and $ρππ$ couplings in QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-459142