Elastic scattering of pions from the three-nucleon system

Abstract

We examine the scattering of charged pions from the trinucleon system at a pion energy of 180 MeV. The motivation for this study is the structure seen in the experimental angular distribution of back-angle scattering for π + -3 He and π − -3 H but for neither π − -3 He nor π + -3 H. We consider the addition of a double spin flip term to an optical model treatment and find that, though the contribution of this term is non-negligible at large angles for π + -3 He and π − -3 H, it does not reproduce the structure seen in the experiment.

Feasibility of clinical detection of cervical dysplasia using angle-resolved low coherence interferometry measurements of depth-resolved nuclear morphology

“…38 Collier and Gibbs and Drezek et al studied changes in light scattering from pre-cancerous cervical tissues due to changes in nuclear size and chromatin optical density and texture. 39,40 However, the unique capability of a/LCI to obtain quantitative nuclear morphology measurements specifically at or near the basal layer of the cervical epithelium, enables high sensitivity and specificity, by targeting measurements at the tissue site where nuclear atypia and dysplasia usually originates. This capability may support more sensitive, earlier detection of cervical dysplasia compared to other optical techniques.…”

Charge-symmetry violation in pion scattering from three-body nuclei

“…2b. (Calculations of double-spin-flip amplitudes were performed recently [24].) In the same approximation as was used while calculating the single-scattering term, F2 = 4π 9 2 f 2…”