Eur. Phys. J. C (2008) 57: 711-718
https://doi.org/10.1140/epjc/s10052-008-0699-y

Regular Article - Theoretical Physics

Strong decay Δ⁺⁺→p π with light-cone QCD sum rules

Department of Physics, North China Electric Power University, Baoding, 071003, People’s Republic of China

^* e-mail: wangzgyiti@yahoo.com.cn

Received: 30 April 2008
Revised: 7 July 2008
Published online: 28 August 2008

Abstract

We calculate the strong coupling constant g _{ΔN π} and study the strong decay Δ⁺⁺→p π with light-cone QCD sum rules. The numerical value of the strong coupling constant g _{ΔN π} is consistent with the experimental data. The small discrepancy may be due to the failure to take into account perturbative corrections.