Speaker
Prof.
Atsushi Hosaka
(RCNP)
Description
Two pion emission decays of radially excited quarkonia are investigated, including Upsilon(3S->1S, 2S; 2S->1S) and Psi(2S->1S). The coupling structure is of scalar-isoscalar type, and the strengths turn out to be in a similar order, implying a common mechanism in the couplings. Using transition matrix elements between these states, we obtain the J/psi-J/psi-2pi couplings, from which we provide J/psi-N potential. We find that the potential is attractive with strength similar to that obtained in lattice simulations.
Primary author
Prof.
Atsushi Hosaka
(RCNP)
