I will summarize my works on study of the heavy hadrons, which include at least one heavy quark, using effective theories. I am planning to introduce the following three topics:
1: Study of singly heavy baryons based on an effective theory based on the chiral symmetry and heavy-quark symmetry.
2: Study of doubly heavy baryons based on an effective theory based on the super-flavor symmetry...
The nucleon mass includes the contribution from chiral symmetry breaking and chiral invariant mass. Parity doublet model is one of the effective chiral models that take these two contributions into consideration. For increasing baryon densities, the existence of such chiral invariant mass has large impacts on the density dependence of baryons masses as well as baryon-meson couplings. In...