Estimating sigma-meson couplings from D \to 3πdecays

Abstract

Using recent experimental evidence from E791 on the sigma meson in D \to 3πdecays, we study the relevant couplings in D \to σπand σ\to π pi within the accepted theoretical framework for non leptonic D decays. We also review the linear sigma model, finding that it gives a description which is consistent with the experimental data.

6 pages, no figures. Final version accepted for publication as a Brief Report in Physical Review D

References in corpus (4)

• Experimental evidence for a light and broad scalar resonance in $D^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$ decay
• A low-lying scalar meson nonet in a unitarized meson model
• Predicting D -> sigma pi
• The QCD Coupling Constant

Cited by in corpus (11)

• Pion and sigma meson properties in a relativistic quark model
• Hadronic D Decays Involving Scalar Mesons
• Kpi form factors and final state interactions in D+ --> K- pi+ pi+ decays
• Predicting D -> sigma pi
• Scalar resonances in a unitary $\pi -\pi$ $S$-wave model for $D^{+}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}$
• Phase Motion in the Scalar Low-Mass pi+pi- Amplitude in D+ -> pi-pi+pi+ Decay
• $\sigma$ Meson In $J/\Psi$ Decays
• Scalar sigma meson effects in radiative rho^0-meson decays
• VMD, chiral loops, sigma-meson, and omega-rho mixing in omega-->pi^0 pi^0 gamma decay
• Observation of $D^{+}\to f_0(500){\mu }^{+}{\nu }_{\mu }$ and study of $D^{+}\to {\pi }^{+}{\pi }^{-}{\ell }^{+}{\nu }_{\ell }$ decay dynamics
• Resonances and weak interactions in $D^{+}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}$ decays