Our previous study of the near-threshold pp → ppπ reaction based on a hybrid nuclear effective field theory is further elaborated by examining the momentum dependence of the relevant transition operators. We show that the two-pion exchange diagrams give much larger contributions than the one-pion exchange diagram, even though the former is of higher order in the Weinberg counting scheme. The re...

Our previous study of the near-threshold pp → ppπ reaction based on a hybrid nuclear effective field theory is further elaborated by examining the momentum dependence of the relevant transition operators. We show that the two-pion exchange diagrams give much larger contributions than the one-pion exchange diagram, even though the former is of higher order in the Weinberg counting scheme. The re...

The exact expression of the nuclear structure function describing inclusive lepton scattering off nuclei is recalled, and the basic approximations leading to nonrelativistic and relativistic nuclear y and x scaling, are illustrated. The general and systematic features of y-scaling structure functions are pointed out, and a recently proposed novel approach to y-scaling, based on a global scaling...

Recently, it was found experimentally that the transverse momentum distribution of Drell-Yan pair in hadron-nucleus collisions shows nuclear dependence not linearly proportional to A, the atomic number of the target [1]. In addition, the average of squared transverse momentum, 〈q T 〉, grows approximately as A 1/3 [1,2]. This observed non-linear nuclear dependence indicates that multiple-scatter...

The interpretation of the nuclear cross sections measured using accelerator neutrino beams involve severe difficulties, arising primarily from average over incoming flux. broad energy distribution beam particles hampers determination transfer to target, knowledge which is needed pin down dominant reaction mechanism. Overcoming this problem requires development a theoretical approach suitable de...