Predictions of superexotic heavy mesons from K*B(*)B* interactions

Abstract

We make a theoretical study of the three-body system composed of ¯𝐾*⁢¯𝐵*⁢¯𝐵* and ¯𝐾*⁢¯𝐵⁢¯𝐵* to look for possible bound states, which could be associated to mesonic resonances of very exotic nature, containing open strange and double-bottom flavors. The three-body interaction is evaluated by using the fixed center approach to the Faddeev equations where the ¯𝐵*⁢¯𝐵* or ¯𝐵⁢¯𝐵* is bound forming an 𝐼⁡(𝐽𝑃) =0⁢(1+) state, as it was found in previous works, and the third particle, the ¯𝐾*, of much smaller mass, interacts with the components of the cluster. We obtain bound states for all the channels considered: spin 𝐽 =0, 1, and 2, all of them with isospin 𝐼 =1/2 and negative parity.