Is the K-matrix approach adequate for describing overlapping resonances?

2020/02/22 by Victor Henner, Henner, Victor, Tatyana Belozerova +1
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Electron Spin Resonance Studies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum chaos and dynamical systems #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2002.10949

openalex publication_date 2020/02/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The K-matrix method is widely used unitary parametrization for several resonances with the same quantum numbers. But in fact resonances in this approach are separated and do not overlap.

Citations

• Preserving unitarity for overlapping multichannel states: Breit-Wigner versus K matrix -- comparison, advantages and disadvantages

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