3 papers
hep-ph2026
Self-consistent computation of pair production from non-relativistic effective field theories in the Keldysh-Schwinger formalism
Tobias Binder, Edward Wang
Sommerfeld-enhanced annihilation cross sections in the presence of nearly zero-energy bound states can become so large that perturbative partial-wave unitarity appears to be violat…
hep-ph2024
Perturbative Unitarity Violation in Radiative Capture Transitions to Dark Matter Bound States
Martin Beneke, Tobias Binder, Lorenzo de Ros +2
We investigate the formation of bound states of non-relativistic dark matter particles subject to long-range interactions through radiative capture. The initial scattering and fina…
hep-ph2024
Towards a precision calculation of in the Standard Model IV: Estimating the impact of positronium formation
Tobias Binder, Marco Drewes, Yannis Georis +3
We present a first assessment of how the previously unexplored effect of positronium formation can impact on the value of the effective number of neutrino species in the Standard M…