Testing the Structure of the Scalar Meson $K_0^*(1430)$ in $τ\to K_0^*(1430)ν$ Decay

Details Testing the Structure of the Scalar Meson $K_0^*(1430)$ in $τ\to K_0^*(1430)ν$ Decay Testing the Structure of the Scalar Meson $K_0^*(1430)$ in $τ\to K_0^*(1430)ν$ Decay

2005-09-12

arxiv.org/abs/hep-ph/0509102v1

Mod.Phys.Lett.A21:1625-1628,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, Accepted for pubication in Mod. Phys. Lett. A

Scientific paper

10.1142/S0217732306020998

The decay constant of $K_0^*(1430)$ is the key quantity to determine the production rate of $K_0^*(1430)$ in $\tau$ decays. By assuming $K_0^*(1430)$ is the lowest scalar bound state of $s\bar{q}$, the decay constant can be calculated reliably in QCD sum rule. Then the decay branching ratio of $\tau\to K_0^*(1430)\nu$ is predicted to be about $(7.9\pm 3.1)\times 10^{-5}$. If this branching ratio can be measured by experiment, it should be helpful to make clear the structure of $K_0^*(1430)$.

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