3 papers
hep-th2026
Yang-Lee edge singularity at from the functional renormalization group: revised analysis
Konrad Kockler, Jan M. Pawlowski, Vladimir V. Skokov
We determine the critical exponents of the Yang-Lee edge singularity as continuous functions of dimension using the functional renormalization group, retaining all operators at sec…
hep-ph2026
Multi-scattering processes and spectral properties of low-energy QCD
Konrad Kockler, Jan M. Pawlowski, Franz R. Sattler +2
We compute quark and meson spectral functions in low-energy QCD, including all-order scatterings and decays of pions and the scalar -mode. For low energies the gluons decouple a…
hep-th2025
Critical scaling for spectral functions
Konrad Kockler, Jan M. Pawlowski, Jonas Wessely
We study real-time scalar -theory in 2+1 dimensions near criticality. Specifically, we compute the single-particle spectral function and that of the -channel four-point fun…