Possible molecular states
We investigate the possibility of deuteron-like $\Sigma_c^*\bar {\Sigma} $ bound states
within the one-boson-exchange model and systematically analyze the effects of the contact-
range $\delta^{3}(\vec {r}\,) $ potential, the tensor term from the vector-meson exchange, and
nonlocal potentials due to the dependence on the sum of the initial and final state center-of-
mass momenta. We find that the pion-exchange potential including the $\delta^{3}(\vec {r}\,)
$ term and the tensor term of the $\rho $-exchange potential exhibit comparable magnitudes …
within the one-boson-exchange model and systematically analyze the effects of the contact-
range $\delta^{3}(\vec {r}\,) $ potential, the tensor term from the vector-meson exchange, and
nonlocal potentials due to the dependence on the sum of the initial and final state center-of-
mass momenta. We find that the pion-exchange potential including the $\delta^{3}(\vec {r}\,)
$ term and the tensor term of the $\rho $-exchange potential exhibit comparable magnitudes …
We investigate the possibility of deuteron-like bound states within the one-boson-exchange model and systematically analyze the effects of the contact-range potential, the tensor term from the vector-meson exchange, and nonlocal potentials due to the dependence on the sum of the initial and final state center-of-mass momenta. We find that the pion-exchange potential including the term and the tensor term of the -exchange potential exhibit comparable magnitudes but opposite signs for any -wave baryon-antibaryon systems. For the system, it is most likely to form bound states with mass around 3.7 GeV in the and channels.
arxiv.org