## J Phys G

- A E Dorokhov, S V Esaibegian, N I Kochelev, N G Stefanis
- J Phys G
- 1997

A QCD Laplace sum rule framework is employed to investigate the relationship between the mass and the decay width of the sigma, the lowest-lying isoscalar resonance in the spin-zero meson channel. Our analysis differs from prior analyses, not only by incorporating finite-width departures from the narrow resonance approximation , but also through the… (More)