Deep inelastic ratio $R={\sigma }_L/{\sigma }_T$ and the possible existence of scalar partons in the nucleon

Abstract

We have performed several fits to find the ratio $R={\sigma }_L/{\sigma }_T$ in different phenomenological models. Our fits seem to leave no room for possible admixture of scalar partons inside the nucleon.

Comments: 8 pages, 3 figures, LaTeX