ar X iv : n uc l - th / 0 20 40 26 v 1 9 A pr 2 00 2 RELATIONSHIP OF THE 3 P 0 DECAY MODEL TO OTHER STRONG DECAY MODELS

ar X iv : n uc l - th / 0 30 40 52 v 1 1 6 A pr 2 00 3

ar X iv : n uc l - th / 0 41 10 95 v 1 2 3 N ov 2 00 4 Θ + pentaquark in the nuclear medium

We study the interaction of the Θ + pentaquark with nuclear matter associated to the KN decay channels and to the two meson cloud. We find that the potential is attractive and could be strong enough to lead to the existence of Θ + nuclear bound states.

ar X iv : n uc l - th / 0 50 40 62 v 1 2 1 A pr 2 00 5 1 Structure of 8 B and astrophysical S 17 factor

ar X iv : n uc l - th / 0 11 20 22 v 1 8 D ec 2 00 1 Electromagnetic , weak , and strong interactions of light mesons

The ladder-rainbow truncation of the set of Dyson–Schwinger equations is used to study a variety of electroweak and strong processes involving light mesons. The parameters in the effective interaction are constrained by the chiral condensate and f π ; the current quark masses are fitted to m π and m K. The obtained electromagnetic form factors are in good agreement with the data. Also the weak ...

ar X iv : n uc l - th / 0 10 30 27 v 2 9 M ay 2 00 1 ρ → ππ decay in nuclear medium ⋆

We calculate the medium modifications of the ρππ vertex in a relativistic hadronic framework incorporating nucleons and ∆(1232) isobars, and find a substantial increase of the ρππ coupling, dominated by processes where the ∆ is excited. The coupling depends significantly on the virtuality of the ρ, which is related to analytic properties of the vertex function. We analyze the general case of a ...