Feshbach resonances in D + HD(v=1, j=0) reaction at low collision energies.

Abstract

Feshbach resonances in D + HD(v=1, j=0) reaction are studied by using the time-independent quantum method. The integral cross section (ICS) results present three Feshbach resonance peaks, which are different from H + HD(v=1, j=0) reaction dominated by only one peak. These resonances are attributed to coupling with adiabatic effective potentials of D + HD(v=1, j=1) reaction, and the most obvious peak is contributed by J= 1 at 83.16 cm-1 collision energy. For J=0 and 2, the resonances are related with the same L partial wave and present a double-peak structure in total ICS. The characteristics of product angular distribution show that the resonance of J=1 is long-lived, while the lifetimes are relatively shorter for the resonance of J= 0 and 2.