ar X iv : 0 80 4 . 23 50 v 1 [ nu cl - t h ] 1 5 A pr 2 00 8 Scalar meson mass from renormalized One Boson Exchange Potentials

ar X iv : 0 80 4 . 38 37 v 1 [ he p - ph ] 2 4 A pr 2 00 8 Coulomb gauge approach to scalar hadrons

The Coulomb gauge model, involving an effective QCD Hamiltonian in the Coulomb gauge, is applied to scalar hadrons. Mass predictions are presented for both conventional qq̄ meson and qq̄qq̄ tetra-quark states. Mixing matrix elements between these states were also computed and diagonalized to provide a reasonable description of the scalar spectrum below 2 GeV.

ar X iv : 0 80 4 . 25 73 v 1 [ he p - ph ] 1 6 A pr 2 00 8 The spectrum of scalar - meson nonets in the Resonance - Spectrum Expansion ∗

We argue that the low-lying scalar-meson nonet [1] makes part of a subset of a family of infinitely many scalar-meson nonets, which in turn makes part of a family of infinitely many quark-antiquark bound states and resonances. We outline the properties of this subset.

ar X iv : 0 80 4 . 13 11 v 5 [ nu cl - t h ] 2 6 M ar 2 00 9 Neutrino masses from the GSI anomaly

Atominstitut der Österreichischen Universitäten, Technische Universität Wien, Wiedner Hauptstraße 8-10, A-1040 Wien, Österreich, Stefan Meyer Institut für subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, A-1090, Wien, Österreich, c Petersburg Nuclear Physics Institute, 188300 Gatchina, Orlova roscha 1, Russian Federation, Excellence Cluster Universe Technische U...

ar X iv : h ep - p h / 03 07 03 8 v 1 2 J ul 2 00 3 1 Scalar meson exchange in Φ → P 0 P 0 γ decays ∗

ar X iv : h ep - p h / 99 03 53 3 v 1 3 0 M ar 1 99 9 Study of the NN interaction in a Goldstone boson exchange model

Adiabatic nucleon-nucleon potentials are calculated in a six-quark nonrel-ativistic chiral constituent quark model where the Hamiltonian contains a linear confinement and a pseudoscalar meson (Goldstone boson) exchange interaction between quarks. Calculations are performed both in a cluster model and a molecular orbital basis, through coupled channels. In both cases the potentials present an im...