1,998 research outputs found
Nuclear surface diffuseness revealed in nucleon-nucleus diffraction
Nuclear surface provides useful information on nuclear radius, nuclear
structure as well as properties of nuclear matter. We discuss the relationship
between the nuclear surface diffuseness and elastic scattering differential
cross section at the first diffraction peak of high-energy nucleon-nucleus
scattering as an efficient tool in order to extract the nuclear surface
information from limited experimental data involving short-lived unstable
nuclei. The high-energy reaction is described by a reliable microscopic
reaction theory, the Glauber model. Extending the idea of the black sphere
model, we find one-to-one correspondence between the nuclear bulk structure
information and proton elastic scattering diffraction peak. This implies that
we can extract both the nuclear radius and diffuseness simultaneously, using
the position of the first diffraction peak and its magnitude of the elastic
scattering differential cross section. We confirm the reliability of this
approach by using realistic density distributions obtained by a mean-field
model.Comment: 12 pages, 12 figures, to appear in Phys. Rev.
Correlation and Finite Interaction-Range Effects in High-Energy Electron Inclusive Scattering
We calculate cross sections of high energy electron inclusive scattering off
nuclear matter in a new and consistent formulation based on the Green's
function method with the Glauber approximation, which is an extension of our
previous work on the nuclear transparency in (e, e'p) reaction. The comparison
with other approaches is discussed. In this framework, we study the
finite-range effect of the nucleon-nucleon interaction in the final-state
interactions, and the effect of the nuclear short-range correlation. We propose
a zero-range approximation, which works well when correlation and finite
interaction-range effects are included. It greatly reduces the numerical work,
while maintaining a reasonable accuracy.Comment: 28 pages, latex, 12 figures. Nuclear Physics A in pres
- …