Speaker
Rafael Pavao
(IFIC)
Description
In this work we study the possibility that the newly observed Ω(2012) is a molecular state dynamically generated from the KΞ*, ηΩ and KΞ channels. Using this picture, we find a state that has a large coupling to KΞ*, which can be observed in the Ω(2012) → KπΞ decay. This three body decay is automatically incorporated in our chiral unitary approach by considering the mass distribution of Ξ* when calculating the KΞ* loop function. Another interesting result obtained is that, although the KΞ* channel is largely dominant, the ηΩ channel is needed for the system to bind. We conclude that the picture proposed in this work provides a natural explanation for the properties of the Ω(2012) state.
[Based on Eur. Phys. J. C78 (2018) no.10, 857]
Primary authors
Prof.
Eulogio Oset
(IFIC, University of Valencia)
Rafael Pavao
(IFIC)
