出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The J/y-hadron interaction is a key ingredient in analyzing the J/y suppression in hot hadronic
matter as well as the propagation of J/y in nuclei. As a first step to clarify the J/y-hadron
interactions at low energies, we have calculated J/y-p, J/y-r and J/y-nucleon scattering lengths
by the quenched lattice QCD simulations with Wilson fermions for b = 6.2 on 243 ×48 and
323×48 lattices. Using the Lüscher’s method to extract the scattering length from the simulations
in a finite box, we find an attractive interaction in the S-wave channel for all three systems: Among
others, the J/y-nucleon interaction is most attractive. Possibility of the J/y-nucleon bound state
is also discussed.
