Θ+: Another Explanation and Prediction

s, was first reported from SPring8 1) and many subsequent experiments seemed to confirm it. However, data that contradict the experiments have been reported recently and there is yet no consistent theoretical picture of Θ + . We attempt to explain Θ + as a bound state of conventional hadrons which accounts for the mass and narrow width of Θ + . We show that such a picture leads to a new prediction regarding a bound state in kaon and pion system.