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Radial Spectra and Hadronic Decay Widths of Light and Heavy Mesons
A potential model for mesons is presented, which combines quark confinement and strong decay in a realistic approach. The multichannel Schroedinger formalism is employed to describe a system of one…
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The Karlsruhe 4π barium fluoride detector
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A low lying scalar meson nonet in a unitarized meson model
AbstractA unitarized non-relativistic meson model which is successful for the description of the heavy and light vector and pseudo-scalar mesons yields in its extension to the scalar mesons for the…
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Observed D s ( 2317 ) and tentative D ( 2030 ) as the charmed cousins of the light scalar nonet
The very recently observed D∗ sJ (2317) meson is described as a quasi-bound scalar cs̄ state in a unitarized meson model, owing its existence to the strong P0 OZI-allowed coupling to the nearby…
Very broad X(4260) and the resonance parameters of the ψ(3D) vector charmonium state.
TLDR
The shape of the X(4260) observed in the Okubo-Zweig-Iizuka-forbidden process e+e-→π+π-J/ψ, in particular, at and near vector charmonium resonances as well as open-charm threshold enhancements is discussed.
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The Light scalar mesons within quark models
Low‐energy meson‐meson scattering data are a powerful testing ground for quark models. Here, we describe the behaviour at threshold of S‐wave scattering‐matrix singularities. The majority of the full…
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Interference effects in the X(4260) signal
We show that the long known puzzling branching ratios of open-charm decays in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation can be reasonably described with a simple form factor, which strongly…
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Is the Y (4260) just a coupled-channel signal?
The DsD � s , DD � , and D � s D � s P-wave channels in the energy region of the Y (4260) charmonium structure are studied in a coupled-channel model ap- plied to J P C = 1 cresonances. The three…
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Material evidence of a 38 MeV boson
We present further and more compelling evidence of the existence of E(38), a light boson that most probably couples exclusively to quarks and gluons. Observations presented in a prior paper will be…
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The complex relation between production and scattering amplitudes
The constraint implied by the unitarity relation is derived for a three-body production amplitude A that consists of a complex linear combination of elements of the two-body scattering amplitude T.…
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