2011

Exotic baryons from a heavy meson and a nucleon -- Negative parity states --

Yamaguchi, Yasuhiro, Ohkoda, Shunsuke, Yasui, Shigehiro et al.

Understand

We study heavy baryons with an exotic flavor quantum number formed by a heavy meson and a nucleon (Dbar-N and B-N) through a long range one pion exchange interaction.

The bound state found previously in the (I,JP) =(0,1/2-) channel survives when short range interaction is included.
In addition, we find a resonant state with (I,JP)=(0,3/2-) as a Feshbach resonance predominated by a heavy vector meson and a nucleon (Dbar*-N and B*-N).
We find that these exotic states exist for the charm and heavier flavor region.

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