Feshbach resonances in the F+H2 chemical reaction

Reaction resonance is a frontier topic in chemical dynamics research, and is also essential to the understanding of mechanisms of elementary chemical reactions. In this short article, we describe an important development in this reaction direction. Experimental evidence of reaction resonances has been detected in a full quantum state resolved reactive scattering study of the F+H2 reaction. Highly accurate full quantum scattering theoretical modeling shows that the reaction resonance is caused by two Feshbach resonance states. Further studies show that quantum interference is present between the two Feshbach resonance states for the forward scattering product. This study is a significant step forward in our understanding of chemical reaction resonances in the benchmark F+H2 system.