Nucleon-nucleon interaction from meson exchange and nucleonic structure

New mechanism for intermediate- and short-range nucleon-nucleon interaction

“…It is well known [5,6,17] that in all the OBE models the values of the cut-off parameter Λ mN N (m = π, σ, ρ, ω...) are strongly increased as compared with any microscopic model for meson-baryon coupling and also as compared with fits to the data of meson-nucleon scattering experiments [20,21,18,19]. This disagreement is especially evident in the values of Λ πN N which can be derived from the theory of πNN form factors [17,20,22] and even from direct experiments N(e, e ′ π)N ′ in which a pion is knocked out from the pion cloud of the nucleon by fast electrons [23].…”

Recent Progress in Quantum Hadrodynamics

“…Second, hadronic calculations can be calibrated by requiring that they reproduce empirical nuclear properties and scattering observables; we can then extrapolate to the extreme situations mentioned earlier. As an example, accurate microscopic meson-exchange models have been constructed to describe the NN interaction [Na73,Br76,Pa79,Zu81,Ma87,Te87,Ma89,Pl94,St94]. These contain several mesons, the most important of which are the π(0 − , 1), σ(0 + , 0), ω(1 − , 0), and ρ(1 − , 1), where the indicated quantum numbers denote spin, parity, and isospin, together with both N and ∆(1232) degrees of freedom.…”

Description of intermediate- and short-range NN nuclear force within a covariant effective field theory

“…the elastic pp-scattering. And those both values are different from respective values which are adopted in 3N-force operator to fit the 3N binding energy within 2N-and 3N-force models driven by one-boson exchange [2,3,4,5].…”