The E-meson, ?(1410), is observed in its decay into ?+?-?, both via ?? and via a0(980)?. We do not find evidence for the ?(1295).

The nonleptonic weak decays of meson B into a scalar and pseudoscalar meson are studied. The scalar mesons under consideration are {sigma} (or f0(600)), f0(980), a0(980) and K{sub 0}{sup *}(1430). We calculate the Branching ratios in the Naive Factorization approximation. Scalars are assumed to ...

The KLOE experiment at the electron-positron collider DAPHNE has collected in the 2001-2002 running period an integrated luminosity of 450 pb-1. Through the radiative ? decays, large samples of the light scalar mesons f0(980) and a0(980) are available. The f0 meson is clearly observed in ?+?- and ?0?0 final states, the a0 in the ??0 final states. Invariant ...

Assuming f0(980) and a0(980) are mainly qqq-barq-bar low mass scalar mesons and mixed with qq-bar high mass scalar mesons, we analyzed the mixing effects for {phi} {yields} f0(980){gamma}, {phi} {yields} a0(980){gamma}, f0(980) {yields} {gamma}{gamma} and a0(980) {yields} {gamma}{gamma}. Used the vector ...

The KLOE experiment at the electron-positron collider DAPHNE has collected in the 2001-2002 running period an integrated luminosity of 450 pb-1. Through the radiative {phi} decays, large samples of the light scalar mesons f0(980) and a0(980) are available. The f0 meson is clearly observed in {pi}+{pi}- and {pi}0{pi}0 final states, the a0 in the {eta}{pi}0 ...

The hadronic charmless B decays into a scalar meson and a pseudoscalar meson are studied within the framework of QCD factorization. Based on the QCD sum rule method, we have derived the leading-twist light-cone distribution amplitudes of scalar mesons and their decay constants. Although the light scalar mesons ...

We have studied the ?(1020)a0(980) S-wave scattering at threshold energies employing chiral Lagrangians coupled to vector mesons by minimal coupling. The interaction is described without new free parameters by considering the scalar isovector a0(980) resonance as dynamically generated in coupled channels and demanding that the recently ...

We report our recent work on a hadronic molecule state of the Kbar KN system with I = 1/2 and JP = 1/2+. We assume that the ?(1405) resonance and the scalar mesons, f0 (980), a0 (980), are reproduced as quasi-bound states of bar KN and Kbar K, respectively. Performing non-relativistic three-body calculations with a ...

We perform a non-perturbative chiral study of the masses of the lightest pseudoscalar mesons. The pseudoscalar self-energies are calculated by the evaluation of the scalar self-energy loops with full S-wave meson-meson amplitudes taken from Unitary Chiral Perturbation Theory (UCHPT). These amplitudes, among other features, contain the lightest nonet of ...

We investigate some phenomenological consequences of an idea that the f(sub 0)(975) and a(sub 0)(980) play a special role in the dynamics of quark confinement.

We investigate some phenomenological consequences of an idea that the f(sub 0)(975) and a(sub 0)(980) play a special role in the dynamics of quark confinement.

Using about 226�106 J/? events and 106�106 ?' events accumulated with BESIII detector operating at BEPCII e+e- collider, the existence of pp mass threshold enhancement and X(1835) is confirmed. Two new resonances, X(2120) and X(2370) are also observed in J/?-->??'?+?-. In the analysis of J/?-->???+?-, a new process ...

... Descriptors : (*MESON CAPTURE, WAVE FUNCTIONS), (*MUONS, MESON CAPTURE), (*CARBON, MESON CAPTURE), (*OXYGEN, MESON ...

... Descriptors : (*MESON SCATTERING, NUCLEONS), (*RESONANCE SCATTERING, MESONS), (*INTEGRAL EQUATIONS, MESON SCATTERING ...

... the mesons from neutron has always been studied indirectly mainly through the ... it mesons by deuterons, They calculated ...

... MESON REACTIONS, *NUCLEAR SCATTERING), (*BARYONS, NUCLEAR SCATTERING), K MESONS, ANTIPARTICLES, NUCLEONS, SIGMA ...

... MESON REACTIONS, THEORY), (*K MESONS, MESON REACTIONS), PIONS, DECAY SCHEMES, MATHEMATICAL MODELS, ANTIPARTICLES. ...

... MESON REACTIONS, NUCLEI, NUCLEAR REACTIONS, NUCLEONS, MESON CROSS SECTIONS, ANTIPROTONS, PARTICLE TRAJECTORIES ...