No abstract

The kinetic consequences of resonance tunnelling processes that may occur in chemical reactions are investigated in terms of a multi-centered unsymmetrical Eckart potential barrier. This potential function does not only simulate the possible existence of intermediate wells in the effective potential energy cut along the reaction path, but also is amenable to analytic solutions. The reaction rate as well as its dependence on temperature, reduced mass, Q-value, activation energy and barrier diffuseness are evaluated for successively increasing the number of barrier stages. Comparisons between results due to single and multi-humped potential energy barriers are made and discussed.

No abstract

Optical potentials for the seattering of eLi projectiles are calculated using the Watanabe model and an ct -4-d cluster model wave function for eLi. Reasonable fits to the elastic differential cross section and vector polarization ate obtained.

Using the adiabatic approximation, an analytic expression for the correction to 6Li Watanabe potential is obtained. In addition, we have correeted this potential through a proper ehoiee of the energy at whieh the potential parameters of the constituents of SLi, alpha and deuteron, should be taken. The elastie seattering differential eross seetion and rector polarization of 6Li on 12C, 160, zssi and 5SNi are ealeulated with a eorrected Watanabe potential. The results ate compared with both experimental data and the calculated one with uncorreeted Watanabe potential.