Fano interference in quantum resonances from angle-resolved elastic scattering

@article{Paliwal2021FanoII,
  title={Fano interference in quantum resonances from angle-resolved elastic scattering},
  author={Prerna Paliwal and Alexander Blech and Christiane P. Koch and Edvardas Narevicius},
  journal={Nature Communications},
  year={2021},
  volume={12}
}
Asymmetric spectral line shapes are a hallmark of interference of a quasi-bound state with a continuum of states. Such line shapes are well known for multichannel systems, for example, in photoionization or Feshbach resonances in molecular scattering. On the other hand, in resonant single channel scattering, the signature of such interference may disappear due to the orthogonality of partial waves. Here, we show that probing the angular dependence of the cross section allows us to unveil… 
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