Hulthen potential for the plasma-screening effect on the continuum electron capture rate in the solar core

We propose to use the well-known Hulthen potential for describing the plasma-screening effect on the continuum electron capture rate in the solar core region. Among many advantages, the Hulthen potential provides us with analytic solutions and consequently enables us to evaluate the reaction rates and many other observables easily as well as reliably. When applied to the 7Be(e-, ve)7Li reaction, we find that the plasma screening reduces the electron capture rate by 1.7% which agrees with results obtained by most other previous works