Exotic dibaryons with a heavy antiquark

Understand

We discuss the possible existence of exotic dibaryons with a heavy antiquark, being realized three-body systems, Dbar^(*)NN and B^(*)NN.

• These are genuinely exotic states with no quark-antiquark annihilation.
• We consider the heavy quark spin and chiral symmetries, and introduce the one pion exchange potential between a Dbar^(*) (B^(*)) meson and a nucleon N.
• As for the NN interaction, we employ the Argonne v^\prime_8 potential.