Hamburg Photon Science Colloquium | Collisions with cold molecules: Tomography of Feshbach resonances

by Ed Narevicius (Department of Physics, TU Dortmund, Germany)

Friday 26 May 2023, 14:00 → 15:30 Europe/Berlin

SR I-III (CFEL, Bldg. 99)

During collisions coupling between relative and internal atomic and molecular degrees of freedom leads to the formation of Feshbach resonances. The large phase space volume that particles explore in this metastable scattering state supports interference between many different quantum pathways that include inelastic and reactive processes. 

We present a new method that allows us to measure simultaneously all the quantum channels for Feshbach resonances that appear in collisions between vibrationally excited H2+ ion and noble gas atoms. Our quantum state mapping is based on ion-electron coincidence velocity map imaging spectroscopy.

 

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