L.C. Liu

Dependence of calculated binding energies and widths of η-mesic nuclei on treatment of subthreshold η-nucleon interaction

We demonstrate that the binding energies

Dressed bosons theory for nuclear structure

{\ensuremath{\epsilon}}_{\ensuremath{\eta}}

Pauli blocking and final-state interaction in electron-nucleus quasielastic scattering

and widths

The reaction (π+, π+d) on 6Li and 12C

{\ensuremath{\Gamma}}_{\ensuremath{\eta}}

The xi(2230) meson and the pomeron trajectory

of \ensuremath{\eta}-mesic nuclei depend strongly on the subthreshold \ensuremath{\eta}-nucleon interaction. This strong dependence is made evident from comparing three different \ensuremath{\eta}-nucleus optical potentials: (1) a microscopic optical potential taking into account the full effects of the off-shell

Composite vertices that lead to soft form factors

\ensuremath{\eta}N

A mesonic model of - baryon - baryon vertices

interaction; (2) a factorization approximation to the microscopic optical potential where a downward energy shift parameter is introduced to approximate the subthreshold

A Charge-Conjugation-Invariance Constrained Pomeron-Quark Coupling

\ensuremath{\eta}N

An integral equation for reaction amplitudes

interaction; and (3) an optical potential using the on-shell

(. pi. ,. pi. N) reactions in /sup 48/Ca

\ensuremath{\eta}N